摘要
Quantum entanglement has emerged as a great resource for studying the interactions between molecules and radiation.We propose a new scheme of stimulated Raman scattering with entangled photons.A quantum ultrafast Raman spectroscopy is developed for condensed-phase molecules,to monitor the exciton populations and coherences.Analytic results are obtained,showing an entanglement-enabled time-frequency scale not attainable by classical light.The Raman signal presents an unprecedented selectivity of molecular correlation functions,as a result of the Hong-Ou-Mandel interference.Our work suggests a new paradigm of using an unconventional interferometer as part of spectroscopy,with the potential to unveil advanced information about complex materials.
基金
support of the Early Career Scheme from the Hong Kong Research Grants Council(No.21302721)
the National Science Foundation of China(No.12104380)
the National Science Foundation of China/RGC Collaborative Research Scheme(No.9054901)
support of the General Research Fund from Hong Kong Research Grants Council(No.11315822)。
