Embedded Bell-state analysis

Paul G. Kwiat, Harald Weinfurter

Research output: Contribution to journalArticlepeer-review


We discuss a method for distinguishing the four orthogonal Bell states of two entangled particles. Because the scheme relies only on linear optical elements, it should be realizable with current technology. The new feature is that the Bell states must be embedded in a larger Hilbert space. That is, the correlated particles must be entangled in more than one degree of freedom.

Original languageEnglish (US)
Pages (from-to)R2623-R2626
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number4
StatePublished - 1998
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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