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arXiv 2003.114862020-03quant-ph

Producing delocalized frequency-time Schrödinger cat-like states with HOM interferometry

N. Fabre, J. Belhassen, A. Minneci, S. Felicetti, A. Keller, M. I. Amanti, F. Baboux, T. Coudreau, S. Ducci, P. Milman

发表信息：: Phys. Rev. A 102, 023710 (2020)
DOI：: 10.1103/PhysRevA.102.023710

英文摘要：

In the late 80's, Ou and Mandel experimentally observed signal beatings by performing a non-time resolved coincidence detection of two photons having interfered in a balanced beam splitter [Phys. Rev. Lett 61, 54 (1988)]. In this work, we provide a new interpretation of the fringe pattern observed in this experiment as the direct measurement of the chronocyclic Wigner distribution of a frequency Schrödinger cat-like state produced by local spectral filtering. Based on this analysis, we also study time-resolved HOM experiment to measure such frequency state.

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