Emulating Quantum Entangled Biphoton Spectroscopy Using Classical Light Pulses.

ABSTRACT: We show that for a class of quantum light spectroscopy (QLS) experiments using n = 0, 1, 2, ··· classical light pulses and an entangled photon pair (a biphoton state) where one photon acts as a reference without interacting with the matter sample, identical signals can be obtained by replacing the biphotons with classical-like coherent states of light, where these are defined explicitly in terms of the parameters of the biphoton states. An input-output formulation of quantum nonlinear spectroscopy is used to prove this equivalence. We demonstrate the equivalence numerically by comparing a classical pump-quantum probe experiment with the corresponding classical pump-classical probe experiment. This analysis shows that understanding the equivalence between entangled biphoton probes an

SUBMITTER: Ko L 

PROVIDER: S-EPMC10510434 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature