Work

Limitations of entangled two-photon absorption detection

Year: 2026

Type: article

Abstract: 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.

Source: Physical Review A

DOI: 10.1103/qpb1-hk5l

Authors: R. Pollmann, F. Roeder, C. Silberhorn, B. Brecht

Institution: Paderborn University

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $2,675

Funder: Bundesministerium für Bildung und Forschung