Dynamics of Nonclassicality of Time-and Conductivity-Dependent Squeezed States and Excited Even/Odd Coherent States

作     者：R.Daneshmand M.K.Tavassoly 

作者机构：Atomic and Molecular GroupFaculty of PhysicsYazd UniversityYazdIran Photonics Research GroupEngineering Research CenterYazd UniversityYazdIran The Laboratory of Quantum Information ProcessingYazd UniversityYazdIran 

出 版 物：《Communications in Theoretical Physics》 (理论物理通讯（英文版）)

年 卷 期：2017年第67卷第4期

页      面：365-376页

核心收录：

学科分类：0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0704[理学-天文学] 0702[理学-物理学] 

主　　题：Caldirola–Kanai Hamiltonian squeezed vacuum state one-photon squeezed state excited even coherent state excited odd coherent state 

摘      要：Recently, the quantum description of electromagnetic waves in conducting media has been performed. It has been demonstrated that in particular case, the Hamiltonian of the corresponding field can be expressed by Caldirola–Kanai Hamiltonian. In this paper, using the associated annihilation and creation operators of the above-mentioned quantized field, the time-and conductivity-dependent squeezed vacuum and one-photon squeezed states as well as their superpositions, and also the time-and conductivity-dependent excited even and odd coherent states are produced. Also,using a few well-known nonclassicality criteria, the time evolution of nonclassicality features of the above classes of obtained states, in addition to the influence of medium conductivity on them are demonstrated, numerically. It has been shown that the nonclassicality indicators may be adjusted by tuning the conductivity of media.