Measurement-induced collective vibrational quantum coherence under spontaneous Raman scattering in a liquid.

ABSTRACT: Spontaneous vibrational Raman scattering is a ubiquitous form of light-matter interaction whose description necessitates quantization of the electromagnetic field. It is usually considered as an incoherent process because the scattered field lacks any predictable phase relationship with the incoming field. When probing an ensemble of molecules, the question therefore arises: What quantum state should be used to describe the molecular ensemble following spontaneous Stokes scattering? We experimentally address this question by measuring time-resolved Stokes-anti-Stokes two-photon coincidences on a molecular liquid consisting of several sub-ensembles with slightly different vibrational frequencies. When spontaneously scattered Stokes photons and subsequent anti-Stokes photons are detected int

SUBMITTER: Vento V 

PROVIDER: S-EPMC10192212 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature