---
_id: '66583'
abstract:
- lang: eng
  text: We introduce a method for determining the sensitivity of any given entangled
    two-photon absorption (ETPA) measurement. By modeling all signal and noise contributions
    to the measurement, we derive a single numerical value that describes the sensitivity
    of the ETPA measurement in Göppert-Mayer units. This allows us to directly compare
    vastly different experimental approaches and determine whether ETPA will be detectable
    under the given conditions. Therefore we can quantify the effect of any change
    to a given experimental apparatus and identify the ideal optimization pathway.
article_number: '013718'
article_type: original
author:
- first_name: René
  full_name: Pollmann, René
  id: '78890'
  last_name: Pollmann
- first_name: Franz
  full_name: Roeder, Franz
  id: '88149'
  last_name: Roeder
- first_name: Christine
  full_name: Silberhorn, Christine
  id: '26263'
  last_name: Silberhorn
- first_name: Benjamin
  full_name: Brecht, Benjamin
  id: '27150'
  last_name: Brecht
  orcid: '0000-0003-4140-0556 '
citation:
  ama: Pollmann R, Roeder F, Silberhorn C, Brecht B. Limitations of entangled two-photon
    absorption detection. <i>Physical Review A</i>. 2026;114(1). doi:<a href="https://doi.org/10.1103/qpb1-hk5l">10.1103/qpb1-hk5l</a>
  apa: Pollmann, R., Roeder, F., Silberhorn, C., &#38; Brecht, B. (2026). Limitations
    of entangled two-photon absorption detection. <i>Physical Review A</i>, <i>114</i>(1),
    Article 013718. <a href="https://doi.org/10.1103/qpb1-hk5l">https://doi.org/10.1103/qpb1-hk5l</a>
  bibtex: '@article{Pollmann_Roeder_Silberhorn_Brecht_2026, title={Limitations of
    entangled two-photon absorption detection}, volume={114}, DOI={<a href="https://doi.org/10.1103/qpb1-hk5l">10.1103/qpb1-hk5l</a>},
    number={1013718}, journal={Physical Review A}, publisher={American Physical Society
    (APS)}, author={Pollmann, René and Roeder, Franz and Silberhorn, Christine and
    Brecht, Benjamin}, year={2026} }'
  chicago: Pollmann, René, Franz Roeder, Christine Silberhorn, and Benjamin Brecht.
    “Limitations of Entangled Two-Photon Absorption Detection.” <i>Physical Review
    A</i> 114, no. 1 (2026). <a href="https://doi.org/10.1103/qpb1-hk5l">https://doi.org/10.1103/qpb1-hk5l</a>.
  ieee: 'R. Pollmann, F. Roeder, C. Silberhorn, and B. Brecht, “Limitations of entangled
    two-photon absorption detection,” <i>Physical Review A</i>, vol. 114, no. 1, Art.
    no. 013718, 2026, doi: <a href="https://doi.org/10.1103/qpb1-hk5l">10.1103/qpb1-hk5l</a>.'
  mla: Pollmann, René, et al. “Limitations of Entangled Two-Photon Absorption Detection.”
    <i>Physical Review A</i>, vol. 114, no. 1, 013718, American Physical Society (APS),
    2026, doi:<a href="https://doi.org/10.1103/qpb1-hk5l">10.1103/qpb1-hk5l</a>.
  short: R. Pollmann, F. Roeder, C. Silberhorn, B. Brecht, Physical Review A 114 (2026).
date_created: 2026-07-24T10:53:18Z
date_updated: 2026-07-24T11:00:08Z
department:
- _id: '623'
- _id: '15'
doi: 10.1103/qpb1-hk5l
intvolume: '       114'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://journals.aps.org/pra/abstract/10.1103/qpb1-hk5l
oa: '1'
publication: Physical Review A
publication_identifier:
  issn:
  - 2469-9926
  - 2469-9934
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Limitations of entangled two-photon absorption detection
type: journal_article
user_id: '78890'
volume: 114
year: '2026'
...