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Chinese Physics Letters

A Hermitian Opetator Conjugate to Two-Mode Number-Difference Operator

Hong-Yi Fan, Yihua Wang

Published Jun 1, 1998• 5 citations
Publisher

Abstract

For the Shapiro-Wagner-Hradil phase detection description the canonical commutation relation between phase angle ψ and two-mode number-difference operator D = a † a - b † b is constructed. Departing from [ ψ , D ] = - i , the phase angle Hermitian operator is derived in the newly obtained representation ⟨ ξ |, where| ξ ⟩ is the common eigenket of a + b † and b + a † .

DOI
10.1088/0256-307x/15/6/001

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