O431 96042101压缩迭加态及其特性=Squeezed superpositionstates and their properties[刊,中]/董传华,缪连元(上海工业大学基础部.上海(200072))∥光学学报.—1995,15(12),—1657—1662压缩迭加态是由迭加态通过压缩系统后产生的一种...O431 96042101压缩迭加态及其特性=Squeezed superpositionstates and their properties[刊,中]/董传华,缪连元(上海工业大学基础部.上海(200072))∥光学学报.—1995,15(12),—1657—1662压缩迭加态是由迭加态通过压缩系统后产生的一种辐射场非经典态。展开更多
O431 98020701晶格原子与光场强相互作用体系的元激发-能级激元=Elementary excitations in the strong-coupledsystem of the optical field and latticeatoms-energy-level-excitation[刊,中]/段路明,郭光灿(中国科技大学物理系.安徽...O431 98020701晶格原子与光场强相互作用体系的元激发-能级激元=Elementary excitations in the strong-coupledsystem of the optical field and latticeatoms-energy-level-excitation[刊,中]/段路明,郭光灿(中国科技大学物理系.安徽,合肥(230026))∥光学精密工程.-1997,5(3).-16-20光场与窄能带晶体的强耦合体系被发现存在一种新型的元激发-能级激元。分析了该元激发的能谱及一些性质。并提出通过控制光场的状态来实现能级激元的态制备。参8(任延同)展开更多
In a previous work [Commun. Theor. Phys. 45 （2006） 79] a scheme was presented for approximate and conditional teleportation of an unknown atomic state in a QED-cavity without Bell-state measurement via two-photon Ja...In a previous work [Commun. Theor. Phys. 45 （2006） 79] a scheme was presented for approximate and conditional teleportation of an unknown atomic state in a QED-cavity without Bell-state measurement via two-photon Jaynes-Cummings model in the effective Hamiltonian approach. This comment presents an alternative method, based on the so called ＂full two-photon Jaynes-Cummings Hamiltonian approach＂. Accordingly, it describes the evolution of the two-photon degenerate process for arbitrary average photon number inside the cavity, as the correct way to implement teleportation in this scenario.展开更多
Considering two identical two-level atoms interacting with two mode thermal field through a nondegeratetwo-photon process,we study the entanglement dynamics between two atoms when the atomic coherence exists.It showst...Considering two identical two-level atoms interacting with two mode thermal field through a nondegeratetwo-photon process,we study the entanglement dynamics between two atoms when the atomic coherence exists.It showsthat the entanglement is dependent on the initial atomic states,and is greatly enhanced due to atomic coherence ascompared with the case when the atomic coherence is ignored.The results also show that the entanglement can becontrolled by changing the relative phases and the amplitudes of the polarized atoms.展开更多
In this paper, we conduct an investigation into two-dimensional squeezed magnetopolarons. The Hamiltonian of magnetopolarons is dealt with two-mode squeezed states transformation, which is based on the Lee-Low-Pines a...In this paper, we conduct an investigation into two-dimensional squeezed magnetopolarons. The Hamiltonian of magnetopolarons is dealt with two-mode squeezed states transformation, which is based on the Lee-Low-Pines and Huybrechts （LLP-H） canonical transformations. This method makes it possible to take account of the linear terms, bilinear ones of phonon operators, and the correlation between two longitudinal optical （LO） phonon modes. The energies of the ground state and excited states are evaluated by variational approach, and accurate results are obtained. Furthermore, the renormalized cyclotron masses for some possible transitions are discussed in detail.展开更多
A simple scheme is presented for generating four-photon Greenberger-Horne-Zeilinger (GHZ) states with interaction between a four-level atom and two bimodal cavities. In the proposed protocol, the quantum information i...A simple scheme is presented for generating four-photon Greenberger-Horne-Zeilinger (GHZ) states with interaction between a four-level atom and two bimodal cavities. In the proposed protocol, the quantum information is encoded on Fock states of the cavity fields. The detection of the atom can collapse the cavity to the desired state. The experimental feasibility of our proposal is also discussed.展开更多
基金The Science and Technology Research Foundation of Hunan Province of China(2010FJ4120)Key Scientific Research Fund of Hunan Provincial Education Depart ment of China(09A013)
文摘O431 96042101压缩迭加态及其特性=Squeezed superpositionstates and their properties[刊,中]/董传华,缪连元(上海工业大学基础部.上海(200072))∥光学学报.—1995,15(12),—1657—1662压缩迭加态是由迭加态通过压缩系统后产生的一种辐射场非经典态。
文摘O431 98020701晶格原子与光场强相互作用体系的元激发-能级激元=Elementary excitations in the strong-coupledsystem of the optical field and latticeatoms-energy-level-excitation[刊,中]/段路明,郭光灿(中国科技大学物理系.安徽,合肥(230026))∥光学精密工程.-1997,5(3).-16-20光场与窄能带晶体的强耦合体系被发现存在一种新型的元激发-能级激元。分析了该元激发的能谱及一些性质。并提出通过控制光场的状态来实现能级激元的态制备。参8(任延同)
文摘In a previous work [Commun. Theor. Phys. 45 （2006） 79] a scheme was presented for approximate and conditional teleportation of an unknown atomic state in a QED-cavity without Bell-state measurement via two-photon Jaynes-Cummings model in the effective Hamiltonian approach. This comment presents an alternative method, based on the so called ＂full two-photon Jaynes-Cummings Hamiltonian approach＂. Accordingly, it describes the evolution of the two-photon degenerate process for arbitrary average photon number inside the cavity, as the correct way to implement teleportation in this scenario.
基金Supported by the Young Scientists Fund of the National Natural Science Foundation of China under Grant No.10905028the Program for Science and Technology Department of Henan Province of China under Grant No.102300410050+1 种基金the Opening Project of Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control (Hunan Normal University),Ministry of Education under Grant No.QSQC1003by the Cultivation Fund of Luoyang Normal College under Grant No.10000854
文摘Considering two identical two-level atoms interacting with two mode thermal field through a nondegeratetwo-photon process,we study the entanglement dynamics between two atoms when the atomic coherence exists.It showsthat the entanglement is dependent on the initial atomic states,and is greatly enhanced due to atomic coherence ascompared with the case when the atomic coherence is ignored.The results also show that the entanglement can becontrolled by changing the relative phases and the amplitudes of the polarized atoms.
基金The project supported by National Natural Science Foundation of China under Grant Nos. 10174024 and 10474025
文摘In this paper, we conduct an investigation into two-dimensional squeezed magnetopolarons. The Hamiltonian of magnetopolarons is dealt with two-mode squeezed states transformation, which is based on the Lee-Low-Pines and Huybrechts （LLP-H） canonical transformations. This method makes it possible to take account of the linear terms, bilinear ones of phonon operators, and the correlation between two longitudinal optical （LO） phonon modes. The energies of the ground state and excited states are evaluated by variational approach, and accurate results are obtained. Furthermore, the renormalized cyclotron masses for some possible transitions are discussed in detail.
基金supported by the National Natural Science Foundation of China (No.11004050)the Key Scientific Research Fund of Hunan Provincial Education Department of China (Nos.09A013 and 10B013)the Science and Technology Research Foundation of Hunan Province of China (No.2010FJ4120)
文摘A simple scheme is presented for generating four-photon Greenberger-Horne-Zeilinger (GHZ) states with interaction between a four-level atom and two bimodal cavities. In the proposed protocol, the quantum information is encoded on Fock states of the cavity fields. The detection of the atom can collapse the cavity to the desired state. The experimental feasibility of our proposal is also discussed.
