---
_id: '50829'
article_number: L012017
author:
- first_name: Nils
  full_name: Heinisch, Nils
  id: '90283'
  last_name: Heinisch
- first_name: Nikolas
  full_name: Köcher, Nikolas
  id: '79191'
  last_name: Köcher
- first_name: David
  full_name: Bauch, David
  id: '44172'
  last_name: Bauch
- first_name: Stefan
  full_name: Schumacher, Stefan
  id: '27271'
  last_name: Schumacher
  orcid: 0000-0003-4042-4951
citation:
  ama: 'Heinisch N, Köcher N, Bauch D, Schumacher S. Swing-up dynamics in quantum
    emitter cavity systems: Near ideal single photons and entangled photon pairs.
    <i>Physical Review Research</i>. 2024;6(1). doi:<a href="https://doi.org/10.1103/PhysRevResearch.6.L012017">10.1103/PhysRevResearch.6.L012017</a>'
  apa: 'Heinisch, N., Köcher, N., Bauch, D., &#38; Schumacher, S. (2024). Swing-up
    dynamics in quantum emitter cavity systems: Near ideal single photons and entangled
    photon pairs. <i>Physical Review Research</i>, <i>6</i>(1), Article L012017. <a
    href="https://doi.org/10.1103/PhysRevResearch.6.L012017">https://doi.org/10.1103/PhysRevResearch.6.L012017</a>'
  bibtex: '@article{Heinisch_Köcher_Bauch_Schumacher_2024, title={Swing-up dynamics
    in quantum emitter cavity systems: Near ideal single photons and entangled photon
    pairs}, volume={6}, DOI={<a href="https://doi.org/10.1103/PhysRevResearch.6.L012017">10.1103/PhysRevResearch.6.L012017</a>},
    number={1L012017}, journal={Physical Review Research}, publisher={American Physical
    Society (APS)}, author={Heinisch, Nils and Köcher, Nikolas and Bauch, David and
    Schumacher, Stefan}, year={2024} }'
  chicago: 'Heinisch, Nils, Nikolas Köcher, David Bauch, and Stefan Schumacher. “Swing-up
    Dynamics in Quantum Emitter Cavity Systems: Near Ideal Single Photons and Entangled
    Photon Pairs.” <i>Physical Review Research</i> 6, no. 1 (2024). <a href="https://doi.org/10.1103/PhysRevResearch.6.L012017">https://doi.org/10.1103/PhysRevResearch.6.L012017</a>.'
  ieee: 'N. Heinisch, N. Köcher, D. Bauch, and S. Schumacher, “Swing-up dynamics in
    quantum emitter cavity systems: Near ideal single photons and entangled photon
    pairs,” <i>Physical Review Research</i>, vol. 6, no. 1, Art. no. L012017, 2024,
    doi: <a href="https://doi.org/10.1103/PhysRevResearch.6.L012017">10.1103/PhysRevResearch.6.L012017</a>.'
  mla: 'Heinisch, Nils, et al. “Swing-up Dynamics in Quantum Emitter Cavity Systems:
    Near Ideal Single Photons and Entangled Photon Pairs.” <i>Physical Review Research</i>,
    vol. 6, no. 1, L012017, American Physical Society (APS), 2024, doi:<a href="https://doi.org/10.1103/PhysRevResearch.6.L012017">10.1103/PhysRevResearch.6.L012017</a>.'
  short: N. Heinisch, N. Köcher, D. Bauch, S. Schumacher, Physical Review Research
    6 (2024).
date_created: 2024-01-24T15:17:37Z
date_updated: 2024-01-24T16:07:57Z
department:
- _id: '230'
- _id: '623'
- _id: '15'
- _id: '170'
- _id: '297'
doi: 10.1103/PhysRevResearch.6.L012017
intvolume: '         6'
issue: '1'
language:
- iso: eng
project:
- _id: '173'
  grant_number: '231447078'
  name: 'TRR 142 - C09: TRR 142 - Ideale Erzeugung von Photonenpaaren für Verschränkungsaustausch
    bei Telekom Wellenlängen (C09*)'
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Physical Review Research
publication_identifier:
  issn:
  - 2643-1564
publication_status: published
publisher: American Physical Society (APS)
status: public
title: 'Swing-up dynamics in quantum emitter cavity systems: Near ideal single photons
  and entangled photon pairs'
type: journal_article
user_id: '90283'
volume: 6
year: '2024'
...
---
_id: '61251'
abstract:
- lang: eng
  text: <jats:p>We theoretically investigate strategies for the deterministic creation
    of trains of time-bin entangled photons using an individual quantum emitter described
    by a Λ-type electronic system. We explicitly demonstrate the theoretical generation
    of linear cluster states with substantial numbers of entangled photonic qubits
    in full microscopic numerical simulations. The underlying scheme is based on the
    manipulation of ground state coherences through precise optical driving. One important
    finding is that the most easily accessible quality metrics, the achievable rotation
    fidelities, fall short in assessing the actual quantum correlations of the emitted
    photons in the face of losses. To address this, we explicitly calculate stabilizer
    generator expectation values as a superior gauge for the quantum properties of
    the generated many-photon state. With widespread applicability in other emitter
    and excitation–emission schemes also, our work lays the conceptual foundations
    for an in-depth practical analysis of time-bin entanglement based on full numerical
    simulations with predictive capabilities for realistic systems and setups, including
    losses and imperfections. The specific results shown in the present work illustrate
    that with controlled minimization of losses and realistic system parameters for
    quantum-dot type systems, useful linear cluster states of significant lengths
    can be generated in the calculations, discussing the possibility of scalability
    for quantum information processing endeavors.</jats:p>
article_number: '036110'
author:
- first_name: David
  full_name: Bauch, David
  last_name: Bauch
- first_name: Nikolas
  full_name: Köcher, Nikolas
  id: '79191'
  last_name: Köcher
- first_name: Nils
  full_name: Heinisch, Nils
  id: '90283'
  last_name: Heinisch
  orcid: 0009-0006-0984-2097
- first_name: Stefan
  full_name: Schumacher, Stefan
  id: '27271'
  last_name: Schumacher
  orcid: 0000-0003-4042-4951
citation:
  ama: Bauch D, Köcher N, Heinisch N, Schumacher S. Time-bin entanglement in the deterministic
    generation of linear photonic cluster states. <i>APL Quantum</i>. 2024;1(3). doi:<a
    href="https://doi.org/10.1063/5.0214197">10.1063/5.0214197</a>
  apa: Bauch, D., Köcher, N., Heinisch, N., &#38; Schumacher, S. (2024). Time-bin
    entanglement in the deterministic generation of linear photonic cluster states.
    <i>APL Quantum</i>, <i>1</i>(3), Article 036110. <a href="https://doi.org/10.1063/5.0214197">https://doi.org/10.1063/5.0214197</a>
  bibtex: '@article{Bauch_Köcher_Heinisch_Schumacher_2024, title={Time-bin entanglement
    in the deterministic generation of linear photonic cluster states}, volume={1},
    DOI={<a href="https://doi.org/10.1063/5.0214197">10.1063/5.0214197</a>}, number={3036110},
    journal={APL Quantum}, publisher={AIP Publishing}, author={Bauch, David and Köcher,
    Nikolas and Heinisch, Nils and Schumacher, Stefan}, year={2024} }'
  chicago: Bauch, David, Nikolas Köcher, Nils Heinisch, and Stefan Schumacher. “Time-Bin
    Entanglement in the Deterministic Generation of Linear Photonic Cluster States.”
    <i>APL Quantum</i> 1, no. 3 (2024). <a href="https://doi.org/10.1063/5.0214197">https://doi.org/10.1063/5.0214197</a>.
  ieee: 'D. Bauch, N. Köcher, N. Heinisch, and S. Schumacher, “Time-bin entanglement
    in the deterministic generation of linear photonic cluster states,” <i>APL Quantum</i>,
    vol. 1, no. 3, Art. no. 036110, 2024, doi: <a href="https://doi.org/10.1063/5.0214197">10.1063/5.0214197</a>.'
  mla: Bauch, David, et al. “Time-Bin Entanglement in the Deterministic Generation
    of Linear Photonic Cluster States.” <i>APL Quantum</i>, vol. 1, no. 3, 036110,
    AIP Publishing, 2024, doi:<a href="https://doi.org/10.1063/5.0214197">10.1063/5.0214197</a>.
  short: D. Bauch, N. Köcher, N. Heinisch, S. Schumacher, APL Quantum 1 (2024).
date_created: 2025-09-12T11:08:59Z
date_updated: 2025-09-12T11:11:32Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '35'
- _id: '230'
- _id: '27'
- _id: '429'
- _id: '623'
doi: 10.1063/5.0214197
intvolume: '         1'
issue: '3'
language:
- iso: eng
project:
- _id: '53'
  name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten
    zu funktionellen Strukturen'
- _id: '56'
  name: TRR 142 - Project Area C
- _id: '173'
  name: 'TRR 142; TP C09: Ideale Erzeugung von Photonenpaaren für Verschränkungsaustausch
    bei Telekom Wellenlängen'
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '266'
  name: 'PhoQC: Photonisches Quantencomputing'
publication: APL Quantum
publication_identifier:
  issn:
  - 2835-0103
publication_status: published
publisher: AIP Publishing
status: public
title: Time-bin entanglement in the deterministic generation of linear photonic cluster
  states
type: journal_article
user_id: '16199'
volume: 1
year: '2024'
...
---
_id: '61253'
abstract:
- lang: eng
  text: "<jats:p>In the SUPER scheme (Swing-UP of the quantum EmitteR population),
    excitation of a quantum emitter is achieved with two off-resonant, red-detuned
    laser pulses. This allows the generation of high-quality single photons without
    the need of complex laser stray light suppression or careful spectral filtering.
    In the present work, we extend this promising method to quantum emitters, specifically
    semiconductor quantum dots, inside a resonant optical cavity. A significant advantage
    of the SUPER scheme is identified in that it eliminates re-excitation of the quantum
    emitter by suppressing photon emission during the excitation cycle. This, in turn,
    leads to almost ideal single-photon purity, overcoming a major factor typically
    limiting the quality of photons generated with quantum emitters in high-quality
    cavities. We further find that for cavity-mediated biexciton emission of degenerate
    photon pairs, the SUPER scheme leads to near-perfect biexciton initialization
    with very high values of polarization entanglement of emitted photon pairs.</jats:p>\r\n
    \         <jats:sec>\r\n            <jats:title/>\r\n            <jats:supplementary-material>\r\n
    \             <jats:permissions>\r\n                <jats:copyright-statement>Published
    by the American Physical Society</jats:copyright-statement>\r\n                <jats:copyright-year>2024</jats:copyright-year>\r\n
    \             </jats:permissions>\r\n            </jats:supplementary-material>\r\n
    \         </jats:sec>"
article_number: L012017
author:
- first_name: Nils
  full_name: Heinisch, Nils
  id: '90283'
  last_name: Heinisch
  orcid: 0009-0006-0984-2097
- first_name: Nikolas
  full_name: Köcher, Nikolas
  id: '79191'
  last_name: Köcher
- first_name: David
  full_name: Bauch, David
  last_name: Bauch
- first_name: Stefan
  full_name: Schumacher, Stefan
  id: '27271'
  last_name: Schumacher
  orcid: 0000-0003-4042-4951
citation:
  ama: 'Heinisch N, Köcher N, Bauch D, Schumacher S. Swing-up dynamics in quantum
    emitter cavity systems: Near ideal single photons and entangled photon pairs.
    <i>Physical Review Research</i>. 2024;6(1). doi:<a href="https://doi.org/10.1103/physrevresearch.6.l012017">10.1103/physrevresearch.6.l012017</a>'
  apa: 'Heinisch, N., Köcher, N., Bauch, D., &#38; Schumacher, S. (2024). Swing-up
    dynamics in quantum emitter cavity systems: Near ideal single photons and entangled
    photon pairs. <i>Physical Review Research</i>, <i>6</i>(1), Article L012017. <a
    href="https://doi.org/10.1103/physrevresearch.6.l012017">https://doi.org/10.1103/physrevresearch.6.l012017</a>'
  bibtex: '@article{Heinisch_Köcher_Bauch_Schumacher_2024, title={Swing-up dynamics
    in quantum emitter cavity systems: Near ideal single photons and entangled photon
    pairs}, volume={6}, DOI={<a href="https://doi.org/10.1103/physrevresearch.6.l012017">10.1103/physrevresearch.6.l012017</a>},
    number={1L012017}, journal={Physical Review Research}, publisher={American Physical
    Society (APS)}, author={Heinisch, Nils and Köcher, Nikolas and Bauch, David and
    Schumacher, Stefan}, year={2024} }'
  chicago: 'Heinisch, Nils, Nikolas Köcher, David Bauch, and Stefan Schumacher. “Swing-up
    Dynamics in Quantum Emitter Cavity Systems: Near Ideal Single Photons and Entangled
    Photon Pairs.” <i>Physical Review Research</i> 6, no. 1 (2024). <a href="https://doi.org/10.1103/physrevresearch.6.l012017">https://doi.org/10.1103/physrevresearch.6.l012017</a>.'
  ieee: 'N. Heinisch, N. Köcher, D. Bauch, and S. Schumacher, “Swing-up dynamics in
    quantum emitter cavity systems: Near ideal single photons and entangled photon
    pairs,” <i>Physical Review Research</i>, vol. 6, no. 1, Art. no. L012017, 2024,
    doi: <a href="https://doi.org/10.1103/physrevresearch.6.l012017">10.1103/physrevresearch.6.l012017</a>.'
  mla: 'Heinisch, Nils, et al. “Swing-up Dynamics in Quantum Emitter Cavity Systems:
    Near Ideal Single Photons and Entangled Photon Pairs.” <i>Physical Review Research</i>,
    vol. 6, no. 1, L012017, American Physical Society (APS), 2024, doi:<a href="https://doi.org/10.1103/physrevresearch.6.l012017">10.1103/physrevresearch.6.l012017</a>.'
  short: N. Heinisch, N. Köcher, D. Bauch, S. Schumacher, Physical Review Research
    6 (2024).
date_created: 2025-09-12T11:16:31Z
date_updated: 2025-09-12T11:18:05Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '35'
- _id: '230'
- _id: '429'
- _id: '27'
doi: 10.1103/physrevresearch.6.l012017
intvolume: '         6'
issue: '1'
language:
- iso: eng
project:
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '53'
  name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten
    zu funktionellen Strukturen'
- _id: '56'
  name: TRR 142 - Project Area C
- _id: '173'
  name: 'TRR 142; TP C09: Ideale Erzeugung von Photonenpaaren für Verschränkungsaustausch
    bei Telekom Wellenlängen'
publication: Physical Review Research
publication_identifier:
  issn:
  - 2643-1564
publication_status: published
publisher: American Physical Society (APS)
status: public
title: 'Swing-up dynamics in quantum emitter cavity systems: Near ideal single photons
  and entangled photon pairs'
type: journal_article
user_id: '16199'
volume: 6
year: '2024'
...
---
_id: '62868'
abstract:
- lang: eng
  text: <jats:p>We theoretically investigate strategies for the deterministic creation
    of trains of time-bin entangled photons using an individual quantum emitter described
    by a Λ-type electronic system. We explicitly demonstrate the theoretical generation
    of linear cluster states with substantial numbers of entangled photonic qubits
    in full microscopic numerical simulations. The underlying scheme is based on the
    manipulation of ground state coherences through precise optical driving. One important
    finding is that the most easily accessible quality metrics, the achievable rotation
    fidelities, fall short in assessing the actual quantum correlations of the emitted
    photons in the face of losses. To address this, we explicitly calculate stabilizer
    generator expectation values as a superior gauge for the quantum properties of
    the generated many-photon state. With widespread applicability in other emitter
    and excitation–emission schemes also, our work lays the conceptual foundations
    for an in-depth practical analysis of time-bin entanglement based on full numerical
    simulations with predictive capabilities for realistic systems and setups, including
    losses and imperfections. The specific results shown in the present work illustrate
    that with controlled minimization of losses and realistic system parameters for
    quantum-dot type systems, useful linear cluster states of significant lengths
    can be generated in the calculations, discussing the possibility of scalability
    for quantum information processing endeavors.</jats:p>
article_number: '036110'
author:
- first_name: David
  full_name: Bauch, David
  last_name: Bauch
- first_name: Nikolas
  full_name: Köcher, Nikolas
  id: '79191'
  last_name: Köcher
- first_name: Nils
  full_name: Heinisch, Nils
  id: '90283'
  last_name: Heinisch
  orcid: 0009-0006-0984-2097
- first_name: Stefan
  full_name: Schumacher, Stefan
  id: '27271'
  last_name: Schumacher
  orcid: 0000-0003-4042-4951
citation:
  ama: Bauch D, Köcher N, Heinisch N, Schumacher S. Time-bin entanglement in the deterministic
    generation of linear photonic cluster states. <i>APL Quantum</i>. 2024;1(3). doi:<a
    href="https://doi.org/10.1063/5.0214197">10.1063/5.0214197</a>
  apa: Bauch, D., Köcher, N., Heinisch, N., &#38; Schumacher, S. (2024). Time-bin
    entanglement in the deterministic generation of linear photonic cluster states.
    <i>APL Quantum</i>, <i>1</i>(3), Article 036110. <a href="https://doi.org/10.1063/5.0214197">https://doi.org/10.1063/5.0214197</a>
  bibtex: '@article{Bauch_Köcher_Heinisch_Schumacher_2024, title={Time-bin entanglement
    in the deterministic generation of linear photonic cluster states}, volume={1},
    DOI={<a href="https://doi.org/10.1063/5.0214197">10.1063/5.0214197</a>}, number={3036110},
    journal={APL Quantum}, publisher={AIP Publishing}, author={Bauch, David and Köcher,
    Nikolas and Heinisch, Nils and Schumacher, Stefan}, year={2024} }'
  chicago: Bauch, David, Nikolas Köcher, Nils Heinisch, and Stefan Schumacher. “Time-Bin
    Entanglement in the Deterministic Generation of Linear Photonic Cluster States.”
    <i>APL Quantum</i> 1, no. 3 (2024). <a href="https://doi.org/10.1063/5.0214197">https://doi.org/10.1063/5.0214197</a>.
  ieee: 'D. Bauch, N. Köcher, N. Heinisch, and S. Schumacher, “Time-bin entanglement
    in the deterministic generation of linear photonic cluster states,” <i>APL Quantum</i>,
    vol. 1, no. 3, Art. no. 036110, 2024, doi: <a href="https://doi.org/10.1063/5.0214197">10.1063/5.0214197</a>.'
  mla: Bauch, David, et al. “Time-Bin Entanglement in the Deterministic Generation
    of Linear Photonic Cluster States.” <i>APL Quantum</i>, vol. 1, no. 3, 036110,
    AIP Publishing, 2024, doi:<a href="https://doi.org/10.1063/5.0214197">10.1063/5.0214197</a>.
  short: D. Bauch, N. Köcher, N. Heinisch, S. Schumacher, APL Quantum 1 (2024).
date_created: 2025-12-04T12:35:53Z
date_updated: 2025-12-05T13:55:00Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '705'
- _id: '35'
- _id: '27'
- _id: '429'
- _id: '230'
- _id: '623'
doi: 10.1063/5.0214197
intvolume: '         1'
issue: '3'
language:
- iso: eng
project:
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '173'
  name: 'TRR 142; TP C09: Ideale Erzeugung von Photonenpaaren für Verschränkungsaustausch
    bei Telekom Wellenlängen'
- _id: '266'
  name: 'PhoQC: Photonisches Quantencomputing'
- _id: '53'
  name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten
    zu funktionellen Strukturen'
- _id: '56'
  name: TRR 142 - Project Area C
publication: APL Quantum
publication_identifier:
  issn:
  - 2835-0103
publication_status: published
publisher: AIP Publishing
status: public
title: Time-bin entanglement in the deterministic generation of linear photonic cluster
  states
type: journal_article
user_id: '16199'
volume: 1
year: '2024'
...
---
_id: '48599'
abstract:
- lang: eng
  text: <jats:title>Abstract</jats:title><jats:p>The biexciton‐exciton emission cascade
    commonly used in quantum‐dot systems to generate polarization entanglement yields
    photons with intrinsically limited indistinguishability. In the present work,
    it focuses on the generation of pairs of photons with high degrees of polarization
    entanglement and simultaneously high indistinguishability. It achieves this goal
    by selectively reducing the biexciton lifetime with an optical resonator. It demonstrates
    that a suitably tailored circular Bragg reflector fulfills the requirements of
    sufficient selective Purcell enhancement of biexciton emission paired with spectrally
    broad photon extraction and twofold degenerate optical modes. The in‐depth theoretical
    study combines (i) the optimization of realistic photonic structures solving Maxwell's
    equations from which model parameters are extracted as input for (ii) microscopic
    simulations of quantum‐dot cavity excitation dynamics with full access to photon
    properties. It reports non‐trivial dependencies on system parameters and use the
    predictive power of the combined theoretical approach to determine the optimal
    range of Purcell enhancement that maximizes indistinguishability and entanglement
    to near unity values, here specifically for the telecom C‐band at 1550 nm.</jats:p>
author:
- first_name: David
  full_name: Bauch, David
  last_name: Bauch
- first_name: Dustin
  full_name: Siebert, Dustin
  last_name: Siebert
- first_name: Klaus
  full_name: Jöns, Klaus
  id: '85353'
  last_name: Jöns
- first_name: Jens
  full_name: Förstner, Jens
  id: '158'
  last_name: Förstner
  orcid: 0000-0001-7059-9862
- first_name: Stefan
  full_name: Schumacher, Stefan
  id: '27271'
  last_name: Schumacher
  orcid: 0000-0003-4042-4951
citation:
  ama: Bauch D, Siebert D, Jöns K, Förstner J, Schumacher S. On‐Demand Indistinguishable
    and Entangled Photons Using Tailored Cavity Designs. <i>Advanced Quantum Technologies</i>.
    Published online 2023. doi:<a href="https://doi.org/10.1002/qute.202300142">10.1002/qute.202300142</a>
  apa: Bauch, D., Siebert, D., Jöns, K., Förstner, J., &#38; Schumacher, S. (2023).
    On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs.
    <i>Advanced Quantum Technologies</i>. <a href="https://doi.org/10.1002/qute.202300142">https://doi.org/10.1002/qute.202300142</a>
  bibtex: '@article{Bauch_Siebert_Jöns_Förstner_Schumacher_2023, title={On‐Demand
    Indistinguishable and Entangled Photons Using Tailored Cavity Designs}, DOI={<a
    href="https://doi.org/10.1002/qute.202300142">10.1002/qute.202300142</a>}, journal={Advanced
    Quantum Technologies}, publisher={Wiley}, author={Bauch, David and Siebert, Dustin
    and Jöns, Klaus and Förstner, Jens and Schumacher, Stefan}, year={2023} }'
  chicago: Bauch, David, Dustin Siebert, Klaus Jöns, Jens Förstner, and Stefan Schumacher.
    “On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs.”
    <i>Advanced Quantum Technologies</i>, 2023. <a href="https://doi.org/10.1002/qute.202300142">https://doi.org/10.1002/qute.202300142</a>.
  ieee: 'D. Bauch, D. Siebert, K. Jöns, J. Förstner, and S. Schumacher, “On‐Demand
    Indistinguishable and Entangled Photons Using Tailored Cavity Designs,” <i>Advanced
    Quantum Technologies</i>, 2023, doi: <a href="https://doi.org/10.1002/qute.202300142">10.1002/qute.202300142</a>.'
  mla: Bauch, David, et al. “On‐Demand Indistinguishable and Entangled Photons Using
    Tailored Cavity Designs.” <i>Advanced Quantum Technologies</i>, Wiley, 2023, doi:<a
    href="https://doi.org/10.1002/qute.202300142">10.1002/qute.202300142</a>.
  short: D. Bauch, D. Siebert, K. Jöns, J. Förstner, S. Schumacher, Advanced Quantum
    Technologies (2023).
date_created: 2023-11-03T10:07:38Z
date_updated: 2023-12-21T10:41:17Z
department:
- _id: '61'
- _id: '230'
- _id: '429'
- _id: '623'
doi: 10.1002/qute.202300142
keyword:
- tet_topic_qd
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://onlinelibrary.wiley.com/doi/10.1002/qute.202300142
oa: '1'
project:
- _id: '173'
  grant_number: '231447078'
  name: 'TRR 142 - C09: TRR 142 - Ideale Erzeugung von Photonenpaaren für Verschränkungsaustausch
    bei Telekom Wellenlängen (C09*)'
- _id: '167'
  grant_number: '231447078'
  name: 'TRR 142 - B06: TRR 142 - Ultraschnelle kohärente opto-elektronische Kontrolle
    eines photonischen Quantensystems (B06*)'
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Advanced Quantum Technologies
publication_identifier:
  issn:
  - 2511-9044
  - 2511-9044
publication_status: published
publisher: Wiley
related_material:
  record:
  - id: '43246'
    relation: earlier_version
    status: public
status: public
title: On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs
type: journal_article
user_id: '158'
year: '2023'
...
---
_id: '43246'
abstract:
- lang: eng
  text: The biexciton-exciton emission cascade commonly used in quantum-dot systems
    to generate polarization entanglement yields photons with intrinsically limited
    indistinguishability. In the present work we focus on the generation of pairs
    of photons with high degrees of polarization entanglement and simultaneously high
    indistinguishibility. We achieve this goal by selectively reducing the biexciton
    lifetime with an optical resonator. We demonstrate that a suitably tailored circular
    Bragg reflector fulfills the requirements of sufficient selective Purcell enhancement
    of biexciton emission paired with spectrally broad photon extraction and two-fold
    degenerate optical modes. Our in-depth theoretical study combines (i) the optimization
    of realistic photonic structures solving Maxwell's equations from which model
    parameters are extracted as input for (ii) microscopic simulations of quantum-dot
    cavity excitation dynamics with full access to photon properties. We report non-trivial
    dependencies on system parameters and use the predictive power of our combined
    theoretical approach to determine the optimal range of Purcell enhancement that
    maximizes indistinguishability and entanglement to near unity values in the telecom
    C-band at $1550\,\mathrm{nm}$.
author:
- first_name: David
  full_name: Bauch, David
  last_name: Bauch
- first_name: Dustin
  full_name: Siebert, Dustin
  last_name: Siebert
- first_name: Klaus
  full_name: Jöns, Klaus
  id: '85353'
  last_name: Jöns
- first_name: Jens
  full_name: Förstner, Jens
  id: '158'
  last_name: Förstner
  orcid: 0000-0001-7059-9862
- first_name: Stefan
  full_name: Schumacher, Stefan
  id: '27271'
  last_name: Schumacher
  orcid: 0000-0003-4042-4951
citation:
  ama: Bauch D, Siebert D, Jöns K, Förstner J, Schumacher S. On-demand indistinguishable
    and entangled photons at telecom frequencies using tailored cavity designs. Published
    online 2023.
  apa: Bauch, D., Siebert, D., Jöns, K., Förstner, J., &#38; Schumacher, S. (2023).
    <i>On-demand indistinguishable and entangled photons at telecom frequencies using
    tailored cavity designs</i>.
  bibtex: '@article{Bauch_Siebert_Jöns_Förstner_Schumacher_2023, title={On-demand
    indistinguishable and entangled photons at telecom frequencies using tailored
    cavity designs}, author={Bauch, David and Siebert, Dustin and Jöns, Klaus and
    Förstner, Jens and Schumacher, Stefan}, year={2023} }'
  chicago: Bauch, David, Dustin Siebert, Klaus Jöns, Jens Förstner, and Stefan Schumacher.
    “On-Demand Indistinguishable and Entangled Photons at Telecom Frequencies Using
    Tailored Cavity Designs,” 2023.
  ieee: D. Bauch, D. Siebert, K. Jöns, J. Förstner, and S. Schumacher, “On-demand
    indistinguishable and entangled photons at telecom frequencies using tailored
    cavity designs.” 2023.
  mla: Bauch, David, et al. <i>On-Demand Indistinguishable and Entangled Photons at
    Telecom Frequencies Using Tailored Cavity Designs</i>. 2023.
  short: D. Bauch, D. Siebert, K. Jöns, J. Förstner, S. Schumacher, (2023).
date_created: 2023-03-31T13:22:05Z
date_updated: 2023-12-21T10:41:17Z
department:
- _id: '61'
- _id: '230'
- _id: '429'
- _id: '623'
- _id: '15'
- _id: '35'
- _id: '170'
- _id: '297'
keyword:
- tet_topic_phc
- tet_topic_qd
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/pdf/2303.13871.pdf
oa: '1'
project:
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
- _id: '173'
  grant_number: '231447078'
  name: 'TRR 142 - C09: TRR 142 - Subproject C09'
- _id: '167'
  grant_number: '231447078'
  name: 'TRR 142 - B06: TRR 142 - Subproject B06'
- _id: '53'
  grant_number: '231447078'
  name: 'TRR 142: TRR 142'
- _id: '55'
  name: 'TRR 142 - B: TRR 142 - Project Area B'
- _id: '56'
  name: 'TRR 142 - C: TRR 142 - Project Area C'
related_material:
  record:
  - id: '48599'
    relation: later_version
    status: public
status: public
title: On-demand indistinguishable and entangled photons at telecom frequencies using
  tailored cavity designs
type: preprint
user_id: '16199'
year: '2023'
...
---
_id: '42973'
article_number: '113601'
article_type: letter_note
author:
- first_name: Carolin
  full_name: Lüders, Carolin
  last_name: Lüders
- first_name: Matthias
  full_name: Pukrop, Matthias
  id: '64535'
  last_name: Pukrop
- first_name: Franziska
  full_name: Barkhausen, Franziska
  id: '63631'
  last_name: Barkhausen
- first_name: Elena
  full_name: Rozas, Elena
  last_name: Rozas
- first_name: Christian
  full_name: Schneider, Christian
  last_name: Schneider
- first_name: Sven
  full_name: Höfling, Sven
  last_name: Höfling
- first_name: Jan
  full_name: Sperling, Jan
  id: '75127'
  last_name: Sperling
  orcid: 0000-0002-5844-3205
- first_name: Stefan
  full_name: Schumacher, Stefan
  id: '27271'
  last_name: Schumacher
  orcid: 0000-0003-4042-4951
- first_name: Marc
  full_name: Aßmann, Marc
  last_name: Aßmann
citation:
  ama: Lüders C, Pukrop M, Barkhausen F, et al. Tracking Quantum Coherence in Polariton
    Condensates with Time-Resolved Tomography. <i>Physical Review Letters</i>. 2023;130(11).
    doi:<a href="https://doi.org/10.1103/physrevlett.130.113601">10.1103/physrevlett.130.113601</a>
  apa: Lüders, C., Pukrop, M., Barkhausen, F., Rozas, E., Schneider, C., Höfling,
    S., Sperling, J., Schumacher, S., &#38; Aßmann, M. (2023). Tracking Quantum Coherence
    in Polariton Condensates with Time-Resolved Tomography. <i>Physical Review Letters</i>,
    <i>130</i>(11), Article 113601. <a href="https://doi.org/10.1103/physrevlett.130.113601">https://doi.org/10.1103/physrevlett.130.113601</a>
  bibtex: '@article{Lüders_Pukrop_Barkhausen_Rozas_Schneider_Höfling_Sperling_Schumacher_Aßmann_2023,
    title={Tracking Quantum Coherence in Polariton Condensates with Time-Resolved
    Tomography}, volume={130}, DOI={<a href="https://doi.org/10.1103/physrevlett.130.113601">10.1103/physrevlett.130.113601</a>},
    number={11113601}, journal={Physical Review Letters}, publisher={American Physical
    Society (APS)}, author={Lüders, Carolin and Pukrop, Matthias and Barkhausen, Franziska
    and Rozas, Elena and Schneider, Christian and Höfling, Sven and Sperling, Jan
    and Schumacher, Stefan and Aßmann, Marc}, year={2023} }'
  chicago: Lüders, Carolin, Matthias Pukrop, Franziska Barkhausen, Elena Rozas, Christian
    Schneider, Sven Höfling, Jan Sperling, Stefan Schumacher, and Marc Aßmann. “Tracking
    Quantum Coherence in Polariton Condensates with Time-Resolved Tomography.” <i>Physical
    Review Letters</i> 130, no. 11 (2023). <a href="https://doi.org/10.1103/physrevlett.130.113601">https://doi.org/10.1103/physrevlett.130.113601</a>.
  ieee: 'C. Lüders <i>et al.</i>, “Tracking Quantum Coherence in Polariton Condensates
    with Time-Resolved Tomography,” <i>Physical Review Letters</i>, vol. 130, no.
    11, Art. no. 113601, 2023, doi: <a href="https://doi.org/10.1103/physrevlett.130.113601">10.1103/physrevlett.130.113601</a>.'
  mla: Lüders, Carolin, et al. “Tracking Quantum Coherence in Polariton Condensates
    with Time-Resolved Tomography.” <i>Physical Review Letters</i>, vol. 130, no.
    11, 113601, American Physical Society (APS), 2023, doi:<a href="https://doi.org/10.1103/physrevlett.130.113601">10.1103/physrevlett.130.113601</a>.
  short: C. Lüders, M. Pukrop, F. Barkhausen, E. Rozas, C. Schneider, S. Höfling,
    J. Sperling, S. Schumacher, M. Aßmann, Physical Review Letters 130 (2023).
date_created: 2023-03-14T07:50:56Z
date_updated: 2023-04-20T15:28:42Z
department:
- _id: '623'
- _id: '15'
- _id: '170'
- _id: '706'
- _id: '429'
- _id: '230'
- _id: '35'
- _id: '297'
doi: 10.1103/physrevlett.130.113601
intvolume: '       130'
issue: '11'
keyword:
- General Physics and Astronomy
language:
- iso: eng
project:
- _id: '53'
  name: 'TRR 142: TRR 142'
- _id: '56'
  name: 'TRR 142 - C: TRR 142 - Project Area C'
- _id: '174'
  name: 'TRR 142 - C10: TRR 142 - Subproject C10'
- _id: '173'
  name: 'TRR 142 - C09: TRR 142 - Subproject C09'
publication: Physical Review Letters
publication_identifier:
  issn:
  - 0031-9007
  - 1079-7114
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Tracking Quantum Coherence in Polariton Condensates with Time-Resolved Tomography
type: journal_article
user_id: '16199'
volume: 130
year: '2023'
...
---
_id: '61252'
abstract:
- lang: eng
  text: <jats:title>Abstract</jats:title><jats:p>The biexciton‐exciton emission cascade
    commonly used in quantum‐dot systems to generate polarization entanglement yields
    photons with intrinsically limited indistinguishability. In the present work,
    it focuses on the generation of pairs of photons with high degrees of polarization
    entanglement and simultaneously high indistinguishability. It achieves this goal
    by selectively reducing the biexciton lifetime with an optical resonator. It demonstrates
    that a suitably tailored circular Bragg reflector fulfills the requirements of
    sufficient selective Purcell enhancement of biexciton emission paired with spectrally
    broad photon extraction and twofold degenerate optical modes. The in‐depth theoretical
    study combines (i) the optimization of realistic photonic structures solving Maxwell's
    equations from which model parameters are extracted as input for (ii) microscopic
    simulations of quantum‐dot cavity excitation dynamics with full access to photon
    properties. It reports non‐trivial dependencies on system parameters and use the
    predictive power of the combined theoretical approach to determine the optimal
    range of Purcell enhancement that maximizes indistinguishability and entanglement
    to near unity values, here specifically for the telecom C‐band at 1550 nm.</jats:p>
article_number: '2300142'
author:
- first_name: David
  full_name: Bauch, David
  last_name: Bauch
- first_name: Dustin
  full_name: Siebert, Dustin
  last_name: Siebert
- first_name: Klaus D.
  full_name: Jöns, Klaus D.
  id: '85353'
  last_name: Jöns
- first_name: Jens
  full_name: Förstner, Jens
  id: '158'
  last_name: Förstner
  orcid: 0000-0001-7059-9862
- first_name: Stefan
  full_name: Schumacher, Stefan
  id: '27271'
  last_name: Schumacher
  orcid: 0000-0003-4042-4951
citation:
  ama: Bauch D, Siebert D, Jöns KD, Förstner J, Schumacher S. On‐Demand Indistinguishable
    and Entangled Photons Using Tailored Cavity Designs. <i>Advanced Quantum Technologies</i>.
    2023;7(1). doi:<a href="https://doi.org/10.1002/qute.202300142">10.1002/qute.202300142</a>
  apa: Bauch, D., Siebert, D., Jöns, K. D., Förstner, J., &#38; Schumacher, S. (2023).
    On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs.
    <i>Advanced Quantum Technologies</i>, <i>7</i>(1), Article 2300142. <a href="https://doi.org/10.1002/qute.202300142">https://doi.org/10.1002/qute.202300142</a>
  bibtex: '@article{Bauch_Siebert_Jöns_Förstner_Schumacher_2023, title={On‐Demand
    Indistinguishable and Entangled Photons Using Tailored Cavity Designs}, volume={7},
    DOI={<a href="https://doi.org/10.1002/qute.202300142">10.1002/qute.202300142</a>},
    number={12300142}, journal={Advanced Quantum Technologies}, publisher={Wiley},
    author={Bauch, David and Siebert, Dustin and Jöns, Klaus D. and Förstner, Jens
    and Schumacher, Stefan}, year={2023} }'
  chicago: Bauch, David, Dustin Siebert, Klaus D. Jöns, Jens Förstner, and Stefan
    Schumacher. “On‐Demand Indistinguishable and Entangled Photons Using Tailored
    Cavity Designs.” <i>Advanced Quantum Technologies</i> 7, no. 1 (2023). <a href="https://doi.org/10.1002/qute.202300142">https://doi.org/10.1002/qute.202300142</a>.
  ieee: 'D. Bauch, D. Siebert, K. D. Jöns, J. Förstner, and S. Schumacher, “On‐Demand
    Indistinguishable and Entangled Photons Using Tailored Cavity Designs,” <i>Advanced
    Quantum Technologies</i>, vol. 7, no. 1, Art. no. 2300142, 2023, doi: <a href="https://doi.org/10.1002/qute.202300142">10.1002/qute.202300142</a>.'
  mla: Bauch, David, et al. “On‐Demand Indistinguishable and Entangled Photons Using
    Tailored Cavity Designs.” <i>Advanced Quantum Technologies</i>, vol. 7, no. 1,
    2300142, Wiley, 2023, doi:<a href="https://doi.org/10.1002/qute.202300142">10.1002/qute.202300142</a>.
  short: D. Bauch, D. Siebert, K.D. Jöns, J. Förstner, S. Schumacher, Advanced Quantum
    Technologies 7 (2023).
date_created: 2025-09-12T11:11:56Z
date_updated: 2025-09-12T11:16:12Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '642'
- _id: '61'
- _id: '230'
- _id: '35'
- _id: '34'
- _id: '429'
- _id: '27'
- _id: '623'
doi: 10.1002/qute.202300142
intvolume: '         7'
issue: '1'
language:
- iso: eng
project:
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '53'
  name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten
    zu funktionellen Strukturen'
- _id: '55'
  name: TRR 142 - Project Area B
- _id: '56'
  name: TRR 142 - Project Area C
- _id: '167'
  name: 'TRR 142; TP B06: Ultraschnelle kohärente opto-elektronische Kontrolle eines
    photonischen Quantensystems'
- _id: '173'
  name: 'TRR 142; TP C09: Ideale Erzeugung von Photonenpaaren für Verschränkungsaustausch
    bei Telekom Wellenlängen'
- _id: '266'
  name: 'PhoQC: Photonisches Quantencomputing'
publication: Advanced Quantum Technologies
publication_identifier:
  issn:
  - 2511-9044
  - 2511-9044
publication_status: published
publisher: Wiley
status: public
title: On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs
type: journal_article
user_id: '16199'
volume: 7
year: '2023'
...
