2025/12/22 by René Pollmann, Pollmann, René, Franz Roeder +5
Computer Science · Engineering · Physics and Astronomy · #Absorption (acoustics) #Absorption spectroscopy #Beam splitter #Noise (video) #Nonlinear Optical Materials Studies #Quantum Information and Cryptography #Quantum Mechanics and Applications
paper · pdf · doi:10.1103/qpb1-hk5l
openalex publication_date 2026/06/26 · openalex created_date 2026/06/27 · openalex updated_date 2026/07/28
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.