Please wait a minute...
Chin. Phys. B, 2008, Vol. 17(2): 618-623    DOI: 10.1088/1674-1056/17/2/042
CLASSICAL AREAS OF PHENOMENOLOGY Prev   Next  

The entropic squeezing of superposition of two arbitrary coherent states

Lu Dao-Ming(卢道明)
Department of Electronic Engineering, Wuyi University, Wuyishan 354300, China
Abstract  In this paper the superpositions of two arbitrary coherent states $\left| \psi \right\rangle = a\left| \beta \right\rangle + b{\rm e}^{{\rm i}\varphi }\left| {m\beta {\rm e}^{{\rm i}\delta }} \right\rangle $ are constructed by using the superposition principle of quantum mechanics. The entropic squeezing effects of the quantum states are studied. The numerical results indicate that the amplitudes, the ratio between the amplitudes of two coherent states, the phase difference between the two components and the relative phase of the two coefficients play important roles in the squeezing effects of the position entropy and momentum entropy.
Keywords:  coherent state      superposition state      entropy squeezing  
Received:  05 March 2007      Revised:  16 April 2007      Accepted manuscript online: 
PACS:  42.50.Dv (Quantum state engineering and measurements)  
  03.65.-w (Quantum mechanics)  
Fund: Project supported by the Natural Science Foundation of Fujian Province, China (Grant No T0650013).

Cite this article: 

Lu Dao-Ming(卢道明) The entropic squeezing of superposition of two arbitrary coherent states 2008 Chin. Phys. B 17 618

[1] Nonclassicality of photon-modulated spin coherent states in the Holstein—Primakoff realization
Xiaoyan Zhang(张晓燕), Jisuo Wang(王继锁), Lei Wang(王磊),Xiangguo Meng(孟祥国), and Baolong Liang(梁宝龙). Chin. Phys. B, 2022, 31(5): 054205.
[2] Wave packet dynamics of nonlinear Gazeau-Klauder coherent states of a position-dependent mass system in a Coulomb-like potential
Faustin Blaise Migueu, Mercel Vubangsi, Martin Tchoffo, and Lukong Cornelius Fai. Chin. Phys. B, 2021, 30(6): 060309.
[3] Entropy squeezing for a V-type three-level atom interacting with a single-mode field and passing through the amplitude damping channel with weak measurement
Cui-Yu Zhang(张翠玉) and Mao-Fa Fang(方卯发). Chin. Phys. B, 2021, 30(1): 010303.
[4] Steady and optimal entropy squeezing for three types of moving three-level atoms coupled with a single-mode coherent field
Wen-Jin Huang(黄文进) and Mao-Fa Fang(方卯发). Chin. Phys. B, 2021, 30(1): 010304.
[5] Probe of topological invariants using quantum walks of a trapped ion in coherent state space
Ya Meng(蒙雅), Feng Mei(梅锋), Gang Chen(陈刚), Suo-Tang Jia(贾锁堂). Chin. Phys. B, 2020, 29(7): 070501.
[6] Nonclassicality of photon-modulated atomic coherent states in the Schwinger bosonic realization
Jisuo Wang(王继锁), Xiangguo Meng(孟祥国), and Xiaoyan Zhang(张晓燕). Chin. Phys. B, 2020, 29(12): 124213.
[7] Entropy squeezing for three-level atom interacting with a single-mode field
Fei-Fan Liu(刘非凡), Mao-Fa Fang(方卯发), Xiong Xu(许雄). Chin. Phys. B, 2019, 28(6): 060304.
[8] Finite-dimensional pair coherent state engendered via the nonlinear Bose operator realization and its Wigner phase-space distributions
Jianming Liu(刘建明), Xiangguo Meng(孟祥国). Chin. Phys. B, 2019, 28(12): 124206.
[9] Time evolution of angular momentum coherent state derived by virtue of entangled state representation and a new binomial theorem
Ji-Suo Wang(王继锁), Xiang-Guo Meng(孟祥国), Hong-Yi Fan(范洪义). Chin. Phys. B, 2019, 28(10): 100301.
[10] Entropy of field interacting with two two-qubit atoms
Tang-Kun Liu(刘堂昆), Yu Tao(陶宇), Chuan-Jia Shan(单传家), Ji-Bing Liu(刘继兵). Chin. Phys. B, 2018, 27(9): 090303.
[11] Construction of two-qubit logical gates by transmon qubits in a three-dimensional cavity
Han Cai(蔡涵), Qi-Chun Liu(刘其春), Chang-Hao Zhao(赵昌昊), Ying-Shan Zhang(张颖珊), Jian-She Liu(刘建设), Wei Chen(陈炜). Chin. Phys. B, 2018, 27(8): 084207.
[12] Generation of sustained optimal entropy squeezing of a two-level atom via non-Hermitian operation
Yan-Yi Wang(王彦懿), Mao-Fa Fang(方卯发). Chin. Phys. B, 2018, 27(11): 114207.
[13] Extended Bell inequality and maximum violation
Yan Gu(古燕), Haifeng Zhang(张海峰), Zhigang Song(宋志刚), Jiuqing Liang(梁九卿), Lianfu Wei(韦联福). Chin. Phys. B, 2018, 27(10): 100303.
[14] Quantum interference between heralded single photon stateand coherent state
Lei Yang(杨磊), Xiaoxin Ma(马晓欣), Xiaoying Li(李小英). Chin. Phys. B, 2017, 26(7): 074206.
[15] Quantum statistical properties of photon-added spin coherent states
G Honarasa. Chin. Phys. B, 2017, 26(11): 114202.
No Suggested Reading articles found!