Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Journal of Shanghai University (English Edition)

Properties of Phase and Their Evolutions in Damped Odd and Even Coherent States

Dong Chuan

Published Jan 1, 2000• 0 citations
OpenAlex

Abstract

The properties of measured phase operators in damped odd and even coherent states have been studied. The fluctuations associated with measured phase and their squeezing in these states are investigated. The phase properties in damped superposition coherent states are considered too with the help of measured phase operators. These fluctuations and their squeezing are affected by damping and evolve with time elapsing.

Related papers

Squeezing Properties of Measured Phase Operators in Generalized Kerr Even and Odd Coherent States

Shao‐Wu Zhang

The properties of the phase squeezing in even and odd coherent states of a finite-dimensional Hibert space have been studied via the measured phase operators introduced by Barnett S M and Pegg D T.The influences of dimensional size of Hilbert space on squeezing of measured phase operarors have been discussed emphatically.It is shown that the cos mφ has squeezing in the CS type in even coherent states,and the degree of squeezing is relevant to s,|α|2 and δ.

Journal of Hubei Normal University•Jan 1, 2002•0 citations

Squeezing of Measured Phase Operators in Kerr Even and Odd Coherent States

Tian Yong

WT5”BZ]:The properties of the two order and higher order squeezing of phase in Kerr even and odd coherent states have been discussed via the measured phase operator introduced by S.M.Barnett and D.T.Pegg.The results exhibit that the measured phase operator cos M has not only periodic k order squeezing in cs type in even and odd coherent states but the k order squeezing in the type of cN when k is even.They also show that the degree of squeezing is relevant with ｜α｜ 2.When ｜α｜ 2 is comparatively big,the squeezing in Kerr even coherent states resembles that in Kerr odd coherent states.Nevertheless,when ｜α｜ 2 is small,the squeezing in Kerr odd coherent states appears shallow,even no squeezing effect occurs. [WT5”HZ]

Journal of Optoelectronics·laser•Jan 1, 2001•0 citations

Squeezing Properties of Measured Phase Operators in Generalized KerrEven and Odd Coherent States

Xiuzhang Wang

The properties of the two-order and high-order squeezing of phase in generalized Kerr even and odd coherent states have been studied via the measured phase operators introduced by S. M. Barnett and D. T. Pegg. The influences of nonlinear order m of generalized Kerr-medium on squeezing of measured phase operarors have been discussed emphatically. It is shown that the measured phase operator has periodic even-order squeezing in the CS type and di-even-order squeezing in CN type ,in all even and odd coherent states, and the degree of squeezing is relevant to m, |α|2 and δ.

Acta Sinica Quantum Optica•Jan 1, 2002•0 citations

Squeezing Properties of Measurement Phase Operator in a New Kind of Even and Odd Nonlinear Coherent States

Kong Li-jing

The spueezing properties in a new kind of even and odd nonlinear coherent states are discussed via the measurement phase operators introduced by Barnett S M and Pegg D T. It is found that there are only a kind of CS squeezing but there are not CN and SN squeezing. Using the numerical calculation, we studied the squeezing properties of CS. It is shown that the CS squeezing properties of the even and odd nonlinear coherent states are different from those of usual even and odd coherent states. Squeezing exists for the new even nonlinear coherent states in the wide range, while small range for the new odd nonlinear coherent states.

Acta Sinica Quantum Optica•Jan 1, 2003•0 citations

Squeezing Properties of Measurement Phase Operator in Superposed Squeezed Coherent States

Yongxin Zhan

The squeezing properties in the superposition of coherent States and squeezed state are investigated by means of the measurement phase operator introduced by Barnett and S M and Pagg D T.

Modern Applied Science•Jul 16, 2010•0 citations

Squeezing Properties of Measurement Phase Operator in the Superposition of Coherent State and Squeezed State

Yongxin Zhan

The squeezing properties in the superposition of coherent States and squeezed state are investigated by means of the measurement phase operator introduced by Barnett and S M and Pagg D T.

Applied Physics Research•Apr 20, 2010•0 citations
The properties of measured phase operators in damped odd and even coherent states have been studied. The fluctuations associated with measured phase and their squeezing in these states are investigated. The phase properties in damped superposition coherent states are considered too with the help of measured phase operators. These fluctuations and their squeezing are affected by damping and evolve with time elapsing.
WT5”BZ]:The properties of the two order and higher order squeezing of phase in Kerr even and odd coherent states have been discussed via the measured phase operator introduced by S.M.Barnett and D.T.Pegg.The results exhibit that the measured phase operator cos M has not only periodic k order squeezing in cs type in even and odd coherent states but the k order squeezing in the type of cN when k is even.They also show that the degree of squeezing is relevant with ｜α｜ 2.When ｜α｜ 2 is comparatively big,the squeezing in Kerr even coherent states resembles that in Kerr odd coherent states.Nevertheless,when ｜α｜ 2 is small,the squeezing in Kerr odd coherent states appears shallow,even no squeezing effect occurs. [WT5”HZ]
The properties of the two-order and high-order squeezing of phase in generalized Kerr even and odd coherent states have been studied via the measured phase operators introduced by S. M. Barnett and D. T. Pegg. The influences of nonlinear order m of generalized Kerr-medium on squeezing of measured phase operarors have been discussed emphatically. It is shown that the measured phase operator has periodic even-order squeezing in the CS type and di-even-order squeezing in CN type ,in all even and odd coherent states, and the degree of squeezing is relevant to m, |α|2 and δ.
The spueezing properties in a new kind of even and odd nonlinear coherent states are discussed via the measurement phase operators introduced by Barnett S M and Pegg D T. It is found that there are only a kind of CS squeezing but there are not CN and SN squeezing. Using the numerical calculation, we studied the squeezing properties of CS. It is shown that the CS squeezing properties of the even and odd nonlinear coherent states are different from those of usual even and odd coherent states. Squeezing exists for the new even nonlinear coherent states in the wide range, while small range for the new odd nonlinear coherent states.