Optical simulation of quantum logic

N. J. Cerf, C. Adami, P. G. Kwiat

Research output: Contribution to journalArticlepeer-review


A constructive method for simulating small-scale quantum circuits by use of linear optical devices is presented. It relies on the representation of several quantum bits by a single photon, and on the implementation of universal quantum gates using simple optical components (beam splitters, phase shifters, etc.). This suggests that the optical realization of small quantum networks with present-day quantum optics technology is a reasonable goal. This technique could be useful for demonstrating basic concepts of simple quantum algorithms or error-correction schemes. The optical analog of a nontrivial three-bit quantum circuit is presented as an illustration.

Original languageEnglish (US)
Pages (from-to)R1477-R1480
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number3
StatePublished - 1998
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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