Quantum optics of lossy asymmetric beam splitters

Ravitej Uppu, Tom Wolterink, Tristan Bernhard Horst Tentrup, Pepijn Willemszoon Harry Pinkse

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Abstract

We theoretically investigate quantum interference of two single photons at a lossy asymmetric beam splitter, the most general passive 2×2 optical circuit. The losses in the circuit result in a non-unitary scattering matrix with a non-trivial set of constraints on the elements of the scattering matrix. Our analysis using the noise operator formalism shows that the loss allows tunability of quantum interference to an extent not possible with a lossless beam splitter. Our theoretical studies support the experimental demonstrations of programmable quantum interference in highly multimodal systems such as opaque scattering media and multimode fibers.
Original languageEnglish
Pages (from-to)16440-16449
JournalOptics express
Volume24
Issue number15
DOIs
Publication statusPublished - 12 Jul 2016

Keywords

  • METIS-317162
  • IR-100634

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