---
_id: '65611'
abstract:
- lang: eng
  text: "<jats:p>\r\n                    Spins confined in optically active quantum
    dot molecules (QDMs) can be used for the deterministic generation of photonic
    graph states with tailored entanglement structures. Their usefulness for the generation
    of such nonclassical states of light is determined by orbital and spin decoherence
    mechanisms, particularly phonon-mediated processes dominant at energy scales up
    to a few millielectronvolts. Here, we directly measure the spectral function of
    orbital phonon relaxation between the energy states of the neutral exciton in
    a QDM and benchmark our findings against microscopic\r\n                    <a:math
    xmlns:a=\"http://www.w3.org/1998/Math/MathML\">\r\n                      <a:mrow>\r\n
    \                       <a:mi mathvariant=\"bold-italic\">k</a:mi>\r\n                        <a:mo>·</a:mo>\r\n
    \                       <a:mi mathvariant=\"bold-italic\">p</a:mi>\r\n                        <a:mspace
    width=\"4pt\"/>\r\n                      </a:mrow>\r\n                    </a:math>\r\n
    \                   theory. Our results reveal pronounced resonances and antiresonances
    in the phonon-relaxation rates, ranging from tens of\r\n                    <e:math
    xmlns:e=\"http://www.w3.org/1998/Math/MathML\">\r\n                      <e:mrow>\r\n
    \                       <e:mi>µ</e:mi>\r\n                        <e:msup>\r\n
    \                         <e:mrow>\r\n                            <e:mi mathvariant=\"normal\">s</e:mi>\r\n
    \                         </e:mrow>\r\n                          <e:mrow>\r\n
    \                           <e:mo>−</e:mo>\r\n                            <e:mn>1</e:mn>\r\n
    \                         </e:mrow>\r\n                        </e:msup>\r\n                      </e:mrow>\r\n
    \                   </e:math>\r\n                    up to tens of\r\n                    <g:math
    xmlns:g=\"http://www.w3.org/1998/Math/MathML\">\r\n                      <g:msup>\r\n
    \                       <g:mrow>\r\n                          <g:mi>ns</g:mi>\r\n
    \                       </g:mrow>\r\n                        <g:mrow>\r\n                          <g:mo>−</g:mo>\r\n
    \                         <g:mn>1</g:mn>\r\n                        </g:mrow>\r\n
    \                     </g:msup>\r\n                    </g:math>\r\n                    .
    Comparison with a kinetic model reveals the voltage (energy) dependent phonon
    coupling strength and fully explains the interplay between phonon-assisted relaxation
    and radiative recombination. The resonances and antiresonances enable further
    tunability of the exciton lifetime which can be leveraged to increase the lifetime
    of energetically unfavorable charge configurations needed for realizing efficient
    spin-photon interfaces and multidimensional cluster states.\r\n                  </jats:p>"
article_number: '235305'
author:
- first_name: Michelle
  full_name: Lienhart, Michelle
  last_name: Lienhart
- first_name: Krzysztof
  full_name: Gawarecki, Krzysztof
  last_name: Gawarecki
- first_name: Markus
  full_name: Stöcker, Markus
  last_name: Stöcker
- first_name: Frederik
  full_name: Bopp, Frederik
  last_name: Bopp
- first_name: Charlotte
  full_name: Cullip, Charlotte
  last_name: Cullip
- first_name: Nadeem
  full_name: Akhlaq, Nadeem
  last_name: Akhlaq
- first_name: Christopher
  full_name: Thalacker, Christopher
  last_name: Thalacker
- first_name: Johannes
  full_name: Schall, Johannes
  last_name: Schall
- first_name: Sven
  full_name: Rodt, Sven
  last_name: Rodt
- first_name: Arne
  full_name: Ludwig, Arne
  last_name: Ludwig
- first_name: Dirk
  full_name: Reuter, Dirk
  id: '37763'
  last_name: Reuter
- first_name: Stephan
  full_name: Reitzenstein, Stephan
  last_name: Reitzenstein
- first_name: Kai
  full_name: Müller, Kai
  last_name: Müller
- first_name: Paweł
  full_name: Machnikowski, Paweł
  last_name: Machnikowski
- first_name: Jonathan J.
  full_name: Finley, Jonathan J.
  last_name: Finley
citation:
  ama: Lienhart M, Gawarecki K, Stöcker M, et al. Resonant and antiresonant exciton-phonon
    coupling in quantum dot molecules. <i>Physical Review B</i>. 2025;112(23). doi:<a
    href="https://doi.org/10.1103/xc25-1tph">10.1103/xc25-1tph</a>
  apa: Lienhart, M., Gawarecki, K., Stöcker, M., Bopp, F., Cullip, C., Akhlaq, N.,
    Thalacker, C., Schall, J., Rodt, S., Ludwig, A., Reuter, D., Reitzenstein, S.,
    Müller, K., Machnikowski, P., &#38; Finley, J. J. (2025). Resonant and antiresonant
    exciton-phonon coupling in quantum dot molecules. <i>Physical Review B</i>, <i>112</i>(23),
    Article 235305. <a href="https://doi.org/10.1103/xc25-1tph">https://doi.org/10.1103/xc25-1tph</a>
  bibtex: '@article{Lienhart_Gawarecki_Stöcker_Bopp_Cullip_Akhlaq_Thalacker_Schall_Rodt_Ludwig_et
    al._2025, title={Resonant and antiresonant exciton-phonon coupling in quantum
    dot molecules}, volume={112}, DOI={<a href="https://doi.org/10.1103/xc25-1tph">10.1103/xc25-1tph</a>},
    number={23235305}, journal={Physical Review B}, publisher={American Physical Society
    (APS)}, author={Lienhart, Michelle and Gawarecki, Krzysztof and Stöcker, Markus
    and Bopp, Frederik and Cullip, Charlotte and Akhlaq, Nadeem and Thalacker, Christopher
    and Schall, Johannes and Rodt, Sven and Ludwig, Arne and et al.}, year={2025}
    }'
  chicago: Lienhart, Michelle, Krzysztof Gawarecki, Markus Stöcker, Frederik Bopp,
    Charlotte Cullip, Nadeem Akhlaq, Christopher Thalacker, et al. “Resonant and Antiresonant
    Exciton-Phonon Coupling in Quantum Dot Molecules.” <i>Physical Review B</i> 112,
    no. 23 (2025). <a href="https://doi.org/10.1103/xc25-1tph">https://doi.org/10.1103/xc25-1tph</a>.
  ieee: 'M. Lienhart <i>et al.</i>, “Resonant and antiresonant exciton-phonon coupling
    in quantum dot molecules,” <i>Physical Review B</i>, vol. 112, no. 23, Art. no.
    235305, 2025, doi: <a href="https://doi.org/10.1103/xc25-1tph">10.1103/xc25-1tph</a>.'
  mla: Lienhart, Michelle, et al. “Resonant and Antiresonant Exciton-Phonon Coupling
    in Quantum Dot Molecules.” <i>Physical Review B</i>, vol. 112, no. 23, 235305,
    American Physical Society (APS), 2025, doi:<a href="https://doi.org/10.1103/xc25-1tph">10.1103/xc25-1tph</a>.
  short: M. Lienhart, K. Gawarecki, M. Stöcker, F. Bopp, C. Cullip, N. Akhlaq, C.
    Thalacker, J. Schall, S. Rodt, A. Ludwig, D. Reuter, S. Reitzenstein, K. Müller,
    P. Machnikowski, J.J. Finley, Physical Review B 112 (2025).
date_created: 2026-05-13T06:24:29Z
date_updated: 2026-05-15T06:13:00Z
department:
- _id: '15'
- _id: '230'
doi: 10.1103/xc25-1tph
intvolume: '       112'
issue: '23'
language:
- iso: eng
publication: Physical Review B
publication_identifier:
  issn:
  - 2469-9950
  - 2469-9969
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Resonant and antiresonant exciton-phonon coupling in quantum dot molecules
type: journal_article
user_id: '42514'
volume: 112
year: '2025'
...