Oscillation behaviour in the photon-number distribution of squeezed coherent states

From the normally ordered form of the density operator of a squeezed coherent state（SCS）,we directly derive the compact expression of the SCS＇s photon-number distribution（PND）.Besides the known oscillation characteristics,we find that the PND is a periodic function with a period of π and extremely s...

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Published inChinese physics B Vol. 21; no. 5; pp. 254 - 259
Main Author 王帅 张晓燕 范洪义
Format Journal Article
LanguageEnglish
Published 01.05.2012
Subjects
Coherence
Compressing
Density
Displacement
Operators
Oscillations
Periodic functions
Photons
PND
SCS
位移参数
光子数分布
压缩相干态
周期函数
振荡特性
振荡行为
Online AccessGet full text
ISSN1674-1056
2058-3834
1741-4199
DOI10.1088/1674-1056/21/5/054206

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Abstract From the normally ordered form of the density operator of a squeezed coherent state（SCS）,we directly derive the compact expression of the SCS＇s photon-number distribution（PND）.Besides the known oscillation characteristics,we find that the PND is a periodic function with a period of π and extremely sensitive to phase.If the squeezing is strong enough,and the compound phase which is relevant to the complex squeezing and displacement parameters are assigned appropriate values,different oscillation behaviours in PND for even and odd photon numbers appear,respectively.
AbstractList From the normally ordered form of the density operator of a squeezed coherent state（SCS）,we directly derive the compact expression of the SCS＇s photon-number distribution（PND）.Besides the known oscillation characteristics,we find that the PND is a periodic function with a period of π and extremely sensitive to phase.If the squeezing is strong enough,and the compound phase which is relevant to the complex squeezing and displacement parameters are assigned appropriate values,different oscillation behaviours in PND for even and odd photon numbers appear,respectively.
From the normally ordered form of the density operator of a squeezed coherent state (SCS), we directly derive the compact expression of the SCS's photon-number distribution (PND). Besides the known oscillation characteristics, we find that the PND is a periodic function with a period of [pi] and extremely sensitive to phase. If the squeezing is strong enough, and the compound phase which is relevant to the complex squeezing and displacement parameters are assigned appropriate values, different oscillation behaviours in PND for even and odd photon numbers appear, respectively.
Author 王帅 张晓燕 范洪义
AuthorAffiliation Department of Physics, Shanghai diao Tong University, Shanghai 200240, China Department of Physics, Heze University, Heze 274015, China
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crossref_primary_10_1103_PhysRevA_90_033847
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Notes Wang Shuai ,Zhang Xiao-Yan ,and Fan Hong-Yi a） Department of Physics,Shanghai Jiao Tong University,Shanghai 200240,China b） Department of Physics,Heze University,Heze 274015,China
photon-number distribution, squeezed coherent states, normal ordering
From the normally ordered form of the density operator of a squeezed coherent state（SCS）,we directly derive the compact expression of the SCS＇s photon-number distribution（PND）.Besides the known oscillation characteristics,we find that the PND is a periodic function with a period of π and extremely sensitive to phase.If the squeezing is strong enough,and the compound phase which is relevant to the complex squeezing and displacement parameters are assigned appropriate values,different oscillation behaviours in PND for even and odd photon numbers appear,respectively.
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Snippet From the normally ordered form of the density operator of a squeezed coherent state（SCS）,we directly derive the compact expression of the SCS＇s photon-number...
From the normally ordered form of the density operator of a squeezed coherent state (SCS), we directly derive the compact expression of the SCS's photon-number...
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StartPage 254
SubjectTerms Coherence
Compressing
Density
Displacement
Operators
Oscillations
Periodic functions
Photons
PND
SCS
位移参数
光子数分布
压缩相干态
周期函数
振荡特性
振荡行为
Title Oscillation behaviour in the photon-number distribution of squeezed coherent states
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Volume 21
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