Nonlocal coherent perfect absorption

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Coherent absorption that occurs at two spatially separated, macroscopic lossy beam splitters is described. A superposition mode of any phase can be chosen as the absorbed or transparent mode. For a nonclassical two-photon NOON-state input, a superposition of two photons entering via one of two separate input modes, a single photon can survive the pair of beam splitters with certainty, implying nonlocal absorption of a single photon, which can be detected via the interference in the two-photon survival probability.

Original languageEnglish
Article number143602
Number of pages5
JournalPhysical Review Letters
Issue number14
Early online date1 Oct 2019
Publication statusPublished - 4 Oct 2019


  • coherent absorption
  • photonics
  • optics
  • light energy
  • beam splitting


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