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Elsevier, Physics Letters A, 5(270), p. 245-248

DOI: 10.1016/s0375-9601(00)00314-5

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Induced coherence with and without induced emission

Journal article published in 2000 by Howard Mark Wiseman ORCID, K. Mølmer
This paper is available in a repository.
This paper is available in a repository.

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Abstract

We analyze signal coherence in the setup of Wang, Zou and Mandel, where two optical downconverters have indistinct idler modes. Quantum interference, caused by indistinguishability of paths, has a visibility proportional to the transmission amplitude between idlers. Classical interference, caused by induced emission, may be complete for any finite transmission. Comment: 3 pages, including 2 postscript figures