---
_id: '58642'
abstract:
- lang: eng
  text: We present a cost-effective self-assembly method to fabricate low-density
    dimer NPs in an NPoM architecture, using the M13 phage as a spacer layer. This
    will enable the development of dynamic plasmonic devices and advanced sensing
    applications.
article_type: original
author:
- first_name: Vasanthan
  full_name: Devaraj, Vasanthan
  id: '103814'
  last_name: Devaraj
- first_name: Isaac Azahel
  full_name: Ruiz Alvarado, Isaac Azahel
  id: '79462'
  last_name: Ruiz Alvarado
  orcid: 0000-0002-4710-1170
- first_name: Jong-Min
  full_name: Lee, Jong-Min
  last_name: Lee
- first_name: Jin-Woo
  full_name: Oh, Jin-Woo
  last_name: Oh
- first_name: Uwe
  full_name: Gerstmann, Uwe
  id: '171'
  last_name: Gerstmann
  orcid: 0000-0002-4476-223X
- first_name: Wolf Gero
  full_name: Schmidt, Wolf Gero
  id: '468'
  last_name: Schmidt
  orcid: 0000-0002-2717-5076
- first_name: Thomas
  full_name: Zentgraf, Thomas
  id: '30525'
  last_name: Zentgraf
  orcid: 0000-0002-8662-1101
citation:
  ama: Devaraj V, Ruiz Alvarado IA, Lee J-M, et al. Self-assembly of isolated plasmonic
    dimers with sub-5 nm gaps on a metallic mirror. <i>Nanoscale Horizons</i>. 2025;10:537-548.
    doi:<a href="https://doi.org/10.1039/d4nh00546e">10.1039/d4nh00546e</a>
  apa: Devaraj, V., Ruiz Alvarado, I. A., Lee, J.-M., Oh, J.-W., Gerstmann, U., Schmidt,
    W. G., &#38; Zentgraf, T. (2025). Self-assembly of isolated plasmonic dimers with
    sub-5 nm gaps on a metallic mirror. <i>Nanoscale Horizons</i>, <i>10</i>, 537–548.
    <a href="https://doi.org/10.1039/d4nh00546e">https://doi.org/10.1039/d4nh00546e</a>
  bibtex: '@article{Devaraj_Ruiz Alvarado_Lee_Oh_Gerstmann_Schmidt_Zentgraf_2025,
    title={Self-assembly of isolated plasmonic dimers with sub-5 nm gaps on a metallic
    mirror}, volume={10}, DOI={<a href="https://doi.org/10.1039/d4nh00546e">10.1039/d4nh00546e</a>},
    journal={Nanoscale Horizons}, publisher={Royal Society of Chemistry (RSC)}, author={Devaraj,
    Vasanthan and Ruiz Alvarado, Isaac Azahel and Lee, Jong-Min and Oh, Jin-Woo and
    Gerstmann, Uwe and Schmidt, Wolf Gero and Zentgraf, Thomas}, year={2025}, pages={537–548}
    }'
  chicago: 'Devaraj, Vasanthan, Isaac Azahel Ruiz Alvarado, Jong-Min Lee, Jin-Woo
    Oh, Uwe Gerstmann, Wolf Gero Schmidt, and Thomas Zentgraf. “Self-Assembly of Isolated
    Plasmonic Dimers with Sub-5 Nm Gaps on a Metallic Mirror.” <i>Nanoscale Horizons</i>
    10 (2025): 537–48. <a href="https://doi.org/10.1039/d4nh00546e">https://doi.org/10.1039/d4nh00546e</a>.'
  ieee: 'V. Devaraj <i>et al.</i>, “Self-assembly of isolated plasmonic dimers with
    sub-5 nm gaps on a metallic mirror,” <i>Nanoscale Horizons</i>, vol. 10, pp. 537–548,
    2025, doi: <a href="https://doi.org/10.1039/d4nh00546e">10.1039/d4nh00546e</a>.'
  mla: Devaraj, Vasanthan, et al. “Self-Assembly of Isolated Plasmonic Dimers with
    Sub-5 Nm Gaps on a Metallic Mirror.” <i>Nanoscale Horizons</i>, vol. 10, Royal
    Society of Chemistry (RSC), 2025, pp. 537–48, doi:<a href="https://doi.org/10.1039/d4nh00546e">10.1039/d4nh00546e</a>.
  short: V. Devaraj, I.A. Ruiz Alvarado, J.-M. Lee, J.-W. Oh, U. Gerstmann, W.G. Schmidt,
    T. Zentgraf, Nanoscale Horizons 10 (2025) 537–548.
date_created: 2025-02-14T08:13:10Z
date_updated: 2025-07-09T14:04:39Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
- _id: '35'
- _id: '295'
- _id: '170'
- _id: '429'
- _id: '27'
doi: 10.1039/d4nh00546e
intvolume: '        10'
language:
- iso: eng
page: 537-548
project:
- _id: '53'
  grant_number: '231447078'
  name: 'TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden
    Konzepten zu funktionellen Strukturen'
- _id: '168'
  grant_number: '231447078'
  name: 'TRR 142 - B07: TRR 142 - Polaronen-Einfluss auf die optischen Eigenschaften
    von Lithiumniobat (B07*)'
- _id: '55'
  name: 'TRR 142 - B: TRR 142 - Project Area B'
- _id: '445'
  grant_number: '367360193'
  name: Hochleistungsrechner Noctua in Paderborn
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Nanoscale Horizons
publication_identifier:
  issn:
  - 2055-6756
  - 2055-6764
publication_status: published
publisher: Royal Society of Chemistry (RSC)
quality_controlled: '1'
status: public
title: Self-assembly of isolated plasmonic dimers with sub-5 nm gaps on a metallic
  mirror
type: journal_article
user_id: '16199'
volume: 10
year: '2025'
...
---
_id: '61246'
abstract:
- lang: eng
  text: "<jats:title>Abstract</jats:title>\r\n          <jats:p>The time-dependent
    one-dimensional nonlinear Schrödinger equation (NLSE) is solved numerically by
    a hybrid pseudospectral-variational quantum algorithm that connects a pseudospectral
    step for the Hamiltonian term with a variational step for the nonlinear term.
    The Hamiltonian term is treated as an integrating factor by forward and backward
    Fourier transforms, which are here carried out classically. This split allows
    us to avoid higher-order time integration schemes, to apply a first-order explicit
    time stepping for the remaining nonlinear NLSE term in a variational algorithm
    block, and thus to avoid numerical instabilities. We demonstrate that the analytical
    solution is reproduced with a small root mean square error for a long time interval
    over which a nonlinear soliton propagates significantly forward in space while
    keeping its shape. We analyze the accuracy and complexity of the quantum algorithm,
    the expressibility of the ansatz circuit and compare it with classical approaches.
    Furthermore, we investigate the influence of algorithm parameters on the accuracy
    of the results, including the temporal step width and the depth of the quantum
    circuit.</jats:p>"
article_number: '23478'
author:
- first_name: Nikolas
  full_name: Köcher, Nikolas
  id: '79191'
  last_name: Köcher
- first_name: Hendrik
  full_name: Rose, Hendrik
  id: '55958'
  last_name: Rose
  orcid: 0000-0002-3079-5428
- first_name: Sachin S.
  full_name: Bharadwaj, Sachin S.
  last_name: Bharadwaj
- first_name: Jörg
  full_name: Schumacher, Jörg
  last_name: Schumacher
- first_name: Stefan
  full_name: Schumacher, Stefan
  id: '27271'
  last_name: Schumacher
  orcid: 0000-0003-4042-4951
citation:
  ama: Köcher N, Rose H, Bharadwaj SS, Schumacher J, Schumacher S. Numerical solution
    of nonlinear Schrödinger equation by a hybrid pseudospectral-variational quantum
    algorithm. <i>Scientific Reports</i>. 2025;15(1). doi:<a href="https://doi.org/10.1038/s41598-025-05660-3">10.1038/s41598-025-05660-3</a>
  apa: Köcher, N., Rose, H., Bharadwaj, S. S., Schumacher, J., &#38; Schumacher, S.
    (2025). Numerical solution of nonlinear Schrödinger equation by a hybrid pseudospectral-variational
    quantum algorithm. <i>Scientific Reports</i>, <i>15</i>(1), Article 23478. <a
    href="https://doi.org/10.1038/s41598-025-05660-3">https://doi.org/10.1038/s41598-025-05660-3</a>
  bibtex: '@article{Köcher_Rose_Bharadwaj_Schumacher_Schumacher_2025, title={Numerical
    solution of nonlinear Schrödinger equation by a hybrid pseudospectral-variational
    quantum algorithm}, volume={15}, DOI={<a href="https://doi.org/10.1038/s41598-025-05660-3">10.1038/s41598-025-05660-3</a>},
    number={123478}, journal={Scientific Reports}, publisher={Springer Science and
    Business Media LLC}, author={Köcher, Nikolas and Rose, Hendrik and Bharadwaj,
    Sachin S. and Schumacher, Jörg and Schumacher, Stefan}, year={2025} }'
  chicago: Köcher, Nikolas, Hendrik Rose, Sachin S. Bharadwaj, Jörg Schumacher, and
    Stefan Schumacher. “Numerical Solution of Nonlinear Schrödinger Equation by a
    Hybrid Pseudospectral-Variational Quantum Algorithm.” <i>Scientific Reports</i>
    15, no. 1 (2025). <a href="https://doi.org/10.1038/s41598-025-05660-3">https://doi.org/10.1038/s41598-025-05660-3</a>.
  ieee: 'N. Köcher, H. Rose, S. S. Bharadwaj, J. Schumacher, and S. Schumacher, “Numerical
    solution of nonlinear Schrödinger equation by a hybrid pseudospectral-variational
    quantum algorithm,” <i>Scientific Reports</i>, vol. 15, no. 1, Art. no. 23478,
    2025, doi: <a href="https://doi.org/10.1038/s41598-025-05660-3">10.1038/s41598-025-05660-3</a>.'
  mla: Köcher, Nikolas, et al. “Numerical Solution of Nonlinear Schrödinger Equation
    by a Hybrid Pseudospectral-Variational Quantum Algorithm.” <i>Scientific Reports</i>,
    vol. 15, no. 1, 23478, Springer Science and Business Media LLC, 2025, doi:<a href="https://doi.org/10.1038/s41598-025-05660-3">10.1038/s41598-025-05660-3</a>.
  short: N. Köcher, H. Rose, S.S. Bharadwaj, J. Schumacher, S. Schumacher, Scientific
    Reports 15 (2025).
date_created: 2025-09-12T10:43:29Z
date_updated: 2025-09-12T10:57:22Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '35'
- _id: '230'
- _id: '27'
doi: 10.1038/s41598-025-05660-3
intvolume: '        15'
issue: '1'
language:
- iso: eng
project:
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '445'
  name: Hochleistungsrechner Noctua in Paderborn
publication: Scientific Reports
publication_identifier:
  issn:
  - 2045-2322
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Numerical solution of nonlinear Schrödinger equation by a hybrid pseudospectral-variational
  quantum algorithm
type: journal_article
user_id: '16199'
volume: 15
year: '2025'
...
---
_id: '63160'
article_number: '245304'
author:
- first_name: Hendrik
  full_name: Rose, Hendrik
  id: '55958'
  last_name: Rose
  orcid: 0000-0002-3079-5428
- first_name: Stefan
  full_name: Schumacher, Stefan
  id: '27271'
  last_name: Schumacher
  orcid: 0000-0003-4042-4951
- first_name: Torsten
  full_name: Meier, Torsten
  id: '344'
  last_name: Meier
  orcid: 0000-0001-8864-2072
citation:
  ama: 'Rose H, Schumacher S, Meier T. Microscopic approach to the quantized light-matter
    interaction in semiconductor nanostructures: Complex coupled dynamics of excitons,
    biexcitons, and photons. <i>Physical Review B</i>. 2025;112(24). doi:<a href="https://doi.org/10.1103/528f-7smh">10.1103/528f-7smh</a>'
  apa: 'Rose, H., Schumacher, S., &#38; Meier, T. (2025). Microscopic approach to
    the quantized light-matter interaction in semiconductor nanostructures: Complex
    coupled dynamics of excitons, biexcitons, and photons. <i>Physical Review B</i>,
    <i>112</i>(24), Article 245304. <a href="https://doi.org/10.1103/528f-7smh">https://doi.org/10.1103/528f-7smh</a>'
  bibtex: '@article{Rose_Schumacher_Meier_2025, title={Microscopic approach to the
    quantized light-matter interaction in semiconductor nanostructures: Complex coupled
    dynamics of excitons, biexcitons, and photons}, volume={112}, DOI={<a href="https://doi.org/10.1103/528f-7smh">10.1103/528f-7smh</a>},
    number={24245304}, journal={Physical Review B}, publisher={American Physical Society
    (APS)}, author={Rose, Hendrik and Schumacher, Stefan and Meier, Torsten}, year={2025}
    }'
  chicago: 'Rose, Hendrik, Stefan Schumacher, and Torsten Meier. “Microscopic Approach
    to the Quantized Light-Matter Interaction in Semiconductor Nanostructures: Complex
    Coupled Dynamics of Excitons, Biexcitons, and Photons.” <i>Physical Review B</i>
    112, no. 24 (2025). <a href="https://doi.org/10.1103/528f-7smh">https://doi.org/10.1103/528f-7smh</a>.'
  ieee: 'H. Rose, S. Schumacher, and T. Meier, “Microscopic approach to the quantized
    light-matter interaction in semiconductor nanostructures: Complex coupled dynamics
    of excitons, biexcitons, and photons,” <i>Physical Review B</i>, vol. 112, no.
    24, Art. no. 245304, 2025, doi: <a href="https://doi.org/10.1103/528f-7smh">10.1103/528f-7smh</a>.'
  mla: 'Rose, Hendrik, et al. “Microscopic Approach to the Quantized Light-Matter
    Interaction in Semiconductor Nanostructures: Complex Coupled Dynamics of Excitons,
    Biexcitons, and Photons.” <i>Physical Review B</i>, vol. 112, no. 24, 245304,
    American Physical Society (APS), 2025, doi:<a href="https://doi.org/10.1103/528f-7smh">10.1103/528f-7smh</a>.'
  short: H. Rose, S. Schumacher, T. Meier, Physical Review B 112 (2025).
date_created: 2025-12-16T15:50:42Z
date_updated: 2025-12-16T15:52:55Z
department:
- _id: '15'
- _id: '170'
- _id: '293'
- _id: '297'
- _id: '623'
- _id: '429'
- _id: '230'
- _id: '35'
- _id: '27'
doi: 10.1103/528f-7smh
intvolume: '       112'
issue: '24'
language:
- iso: eng
project:
- _id: '53'
  name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten
    zu funktionellen Strukturen'
- _id: '54'
  name: TRR 142 - Project Area A
- _id: '59'
  name: 'TRR 142; TP A02: Nichtlineare Spektroskopie von Halbleiter-Nanostrukturen
    mit Quantenlicht'
- _id: '445'
  name: Hochleistungsrechner Noctua in Paderborn
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '266'
  name: 'PhoQC: Photonisches Quantencomputing'
publication: Physical Review B
publication_identifier:
  issn:
  - 2469-9950
  - 2469-9969
publication_status: published
publisher: American Physical Society (APS)
status: public
title: 'Microscopic approach to the quantized light-matter interaction in semiconductor
  nanostructures: Complex coupled dynamics of excitons, biexcitons, and photons'
type: journal_article
user_id: '16199'
volume: 112
year: '2025'
...
