Single-Mode Photon-Addition for the Two-Mode Squeezed State and its Statistical Properties

We construct a new optical field, denoted as ρ 0 ≡ ψ ll ψ , ψ l = sech l λ l ! b † l S 2 00 , by adding single-mode l -photon to a two-mode squeezed vacuum state, where S 2 = exp λ a † b † − a b is the two-mode squeezing operator. We find that its partial trace over b -mode will lead to a negative-b...

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Bibliographic Details
Published inInternational journal of theoretical physics Vol. 56; no. 8; pp. 2651 - 2658
Main Authors Wu, Wei-Feng, Fan, Hong-Yi
Format Journal Article
LanguageEnglish
Published New York Springer US 01.08.2017
Springer Nature B.V
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Summary:We construct a new optical field, denoted as ρ 0 ≡ ψ ll ψ , ψ l = sech l λ l ! b † l S 2 00 , by adding single-mode l -photon to a two-mode squeezed vacuum state, where S 2 = exp λ a † b † − a b is the two-mode squeezing operator. We find that its partial trace over b -mode will lead to a negative-binomial optical field in a -mode characteristic of l , which exhibits quantum entanglement. The photon number fluctuation of the new optical field both in a -mode and in b -mode is investigated. We employ the summation method within ordered product of operators to proceed our discussion.
ISSN:0020-7748
1572-9575
DOI:10.1007/s10773-017-3421-8