相互作用原子玻色爱因斯坦凝聚体诱导的光场压缩效应被引量：25

Squeezing effect of light caused by Bose-Einstein condensate composed of interactive atoms

导出

摘要给出了光场与二能级原子玻色爱因斯坦凝聚体 (BEC)相互作用系统的哈密顿量 ,研究了原子间相互作用对压缩相干态光场与原子BEC相互作用系统中光场正交压缩特性的影响 .结果表明 :光场两正交分量的涨落均随时间按余弦规律周期性地变化 ,其压缩性质依赖于光场的初始压缩因子和压缩方向角 ,而原子间的相互作用影响光场正交分量的涨落随时间变化的幅度和周期 . The Hamiltonian operator of a system of single-mode light field interacting with Bose-Einstein condensate( BEC) of two-level atoms is suggested within the rotating-wave approximation. The influence of the interaction between atoms in the BEC on the quadrature squeezing properties of single-mode squeezed light interacting with atomic BEC is studied under Bogoliubov approximation. The results show that the fluctuations of two quadrature components of light evolve periodically in a cosine law and their squeezing properties are determined mainly by the initial squeeze factor and squeeze direction angle of light, and that the interaction between atoms in BEC changes the amplitude and period of fluctuation of light.

作者周明方家元黄春佳

机构地区长沙电力学院物理与信息工程系

出处《物理学报》 SCIE EI CAS CSCD 北大核心 2003年第8期1916-1919,共4页 Acta Physica Sinica

关键词玻色-爱因斯坦凝聚体光场二能级原子相互作用哈密顿量压缩相干态正交压缩量子光学 Bose-Einstein condensate squeezed state quadrature squeezing of light

分类号 O431.2 [机械工程—光学工程]

引文网络
相关文献

参考文献3

1赵志超,匡乐满.与玻色-爱因斯坦凝聚体相互作用的量子光场的非经典特性[J].量子光学学报,2000,6(1):29-35. 被引量：7
2景辉,葛墨林.原子激光量子相干性的强光调控[J].中国科学（A辑）,2001,31(8):725-729. 被引量：7
3周明,黄春佳.V型三能级原子玻色-爱因斯坦凝聚体与双模压缩光场相互作用系统中光场的压缩特性[J].物理学报,2002,51(11):2514-2516. 被引量：23

二级参考文献16

1[1]Bloch I, Hnsch T W, Esslinger T. Atom laser with a cw output coupler. Phys Rev Lett, 1999, 82: 3008～3011
2[2]Steck H, Naraschevski M, Wallis H. Output of a pulsed atom laser. Phys Rev Lett, 1998, 80: 1～5
3[3]Mewes M -O, Andrews M R, Kurn D M, et al. Output coupler for Bose-Einstein condensed atoms. Phys Rev Lett, 1997, 78: 582～585
4[4]Sun C P, Zhan H, Miao Y X, et al. A linear quantum dynamic theory for coherent output of Bose-Einstain condensation. Commun Theor Phys, 1998, 29: 161～166
5[5]Walls D F, Milburn G J. Quantum Optics. Berlin: Springer-Verlag, 1994. 65～75
6[6]Prataviera G A, Goldstein E V, Meystre P. Mutual coherence of optical and matter waves. Phys Rev A, 1999, 60: 4846～4850
7[7]Jing H, Chen J L, Ge M L. Quantum dynamical theory for squeezing the output of a Bose-Einstein condensate. Phys Rev A, 2001, 63: 15601～15604
8[8]Barnett S M, Burnett K, Vaccaro J A. Why a condensate can be thought of as having a definite phase. J Res Natl Inst Stand Technol, 1996,101: 593～600
9[9]Cornish S L, Claussen N R, Roberts J L, et al. Stable 85Rb Bose-Einstein condensates with widely tunable interactions. Phys Rev Lett, 2000, 85: 1795～1798
10Kuang L M，Commun Theor Phys，1998年，30期，161页