Quantum amplication and the detection of empty de Broglie waves

Horace Pak-Hong Yuen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


A simple formula relating the input and output quantum states of a beamsplitter is derived and applied to the analysis of an interferometer with a photon duplicator along one arm. The result is in direct contrast with the case in which a linear amplifier is employed in place of the photon duplicator.

Original languageEnglish (US)
Pages (from-to)401-404
Number of pages4
JournalPhysics Letters A
Issue number8
StatePublished - Jan 13 1986

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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