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机构地区:[1]Department of Physics, East China Normal University
出 处:《Chinese Optics Letters》2016年第8期12-16,共5页中国光学快报(英文版)
基 金:supported by National 973 Program of China(No.2011CB921604);the National Natural Science Foundation of China(NSFC)through the major research plan(Precision Measurement Physics Grant No.91436211);the NSFC Key Research Program(No.11234003);the Young Scientists Research Program(No.11204086)
摘 要:We report the Hong–Ou–Mandel(HOM) interference, with visibility of 91%, produced from two independent single photons retrieved from collective atomic excitations in two separate cold-atom clouds with high optical depths of 90. The high visibility of the HOM dip is ascribed to the pure single photon in the Fock state that was generated from a dense-cold-atom cloud pumping by a short pulse. The visibility is always the same regardless of the time response of the single-photon detectors. This result experimentally shows that the single photons retrieved are in a separable temporal state with their idler photons.We report the Hong–Ou–Mandel(HOM) interference, with visibility of 91%, produced from two independent single photons retrieved from collective atomic excitations in two separate cold-atom clouds with high optical depths of 90. The high visibility of the HOM dip is ascribed to the pure single photon in the Fock state that was generated from a dense-cold-atom cloud pumping by a short pulse. The visibility is always the same regardless of the time response of the single-photon detectors. This result experimentally shows that the single photons retrieved are in a separable temporal state with their idler photons.
关 键 词:collective visibility dense regardless pumping Stokes cloud coincidence separate normalized
分 类 号:O562[理学—原子与分子物理]
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