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

Fortschritte der Physik

Coherence and squeezing in Z3‐graded spin coherent states

Won Sang Chung

Published Jun 30, 2014• 4 citations
Publisher

Abstract

Abstract A new kind of spin coherent state called a Z3‐graded spin coherent state is constructed by using the complex solution of the equation q3 = 1. We explicitly find three kinds of Z3‐graded spin coherent states. The associated coherent property and spin squeezing are also examined.
DOI
10.1002/prop.201400012

Related papers

Zp-graded charge coherent states

Won Sang Chung

A new kind of charge coherent state called a Zp-graded charge coherent state is constructed by using the complex solution of the equation qp = 1. The p-1 charge operators are also explicitly constructed. We explicitly investigate some nonclassical properties for the Z3-graded charge coherent state.

Modern Physics Letters A•Jun 13, 2014•2 citations

Multi-mode coherent states and multi-mode nonlinear coherent states

Won Sang Chung

In this paper, three-mode nonlinear coherent states are introduced by using the complex solution of the equation q3 = 1. The photon-added or photon-subtracted three-mode nonlinear coherent states are shown to be three-mode nonlinear coherent states with different nonlinear functions. The Z3-graded parity coherent states are introduced as examples of three-mode nonlinear coherent states. Finally, multi-mode coherent states and multi-mode nonlinear coherent states are also constructed in a similar way.

Modern Physics Letters B•May 26, 2014•0 citations

Spin squeezing in nonlinear spin-coherent states

Xiaoguang Wang

We introduce the nonlinear spin-coherent state (SCS) via its ladder operator formalism and propose a type of nonlinear SCS by the nonlinear time evolution of the SCS. By a new version of spectroscopic squeezing criteria we study the spin squeezing in both the SCS and the nonlinear SCS. The results show that the SCS is not squeezed in the x , y and z directions, and the nonlinear SCS may be squeezed in the x and y directions.

arXiv:quant-ph/0103061•Journal of Optics B Quantum and Semiclassical Optics•Apr 12, 2001•39 citations

Squeezing in the Real and Imaginary Spin Coherent States

Dong Yan, Xiaoguang Wang, Ling-An Wu

We study spin squeezing properties in the real and imaginary spin coherent states. We obtain analytical expressions of two spin squeezing parameters via a novel ladder operator formalism of the spin coherent state and the generation function method. Numerical results of the spin squeezing properties are discussed in detail, and the real and imaginary spin coherent state can be spin squeezed over a large range of parameters.

Chinese Physics Letters•Feb 24, 2005•10 citations

Squeezing in the Real and Imaginary Spin Coherent States

严冬, 王晓光, 吴令安

We study spin squeezing properties in the real and imaginary spin coherent states. We obtain analytical expressions of two spin squeezing parameters via a novel ladder operator formalism of the spin coherent state and the generation function method. Numerical results of the spin squeezing properties are discussed in detail, and the rea/and imaginary spin coherent state can be spin squeezed over a large range of parameters.

Chinese Physics Letters•Jan 1, 2005•0 citations

Mean spin direction and spin squeezing in superpositions of spin coherent states

Dong Yan, Xiaoguang Wang, Lijun Song +1 more

Abstract We consider the mean spin direction (MSD) of superpositions of two spin coherent states (SCS) | ± μ〉, and superpositions of | μ〉 and | μ*〉 with a relative phase. We find that the azimuthal angle exhibits a π transition for both states when we vary the relative phase. The spin squeezing of the states, and the bosonic counterpart of the mean spin direction are also discussed.

Open Physics•Jan 1, 2007•41 citations
In this paper, three-mode nonlinear coherent states are introduced by using the complex solution of the equation q3 = 1. The photon-added or photon-subtracted three-mode nonlinear coherent states are shown to be three-mode nonlinear coherent states with different nonlinear functions. The Z3-graded parity coherent states are introduced as examples of three-mode nonlinear coherent states. Finally, multi-mode coherent states and multi-mode nonlinear coherent states are also constructed in a similar way.