电子科技大学学报Issue(4)：542-546,5.DOI:10.3969/j.issn.1001-0548.2014.04.012
原子玻色-爱因斯坦凝聚与单模光场相互作用系统的保真度
Fidelity of Quantum State for Interacting System of Atomic Bose-Einstein Condensate and Single-Mode Light Field
摘要
Abstract
The Hamiltonian operator of a system of two-level atomic Bose-Einstein condensate interacting with single-mode squeezed coherent light field is improved in terms of the lattice-liquid model. The influence on the fidelity of quantum state of the system from the average photon number of the initial light field, the interaction intensity between light field and atoms, and the circular frequency of the light field is studied. The results show that the fidelity of the system presents a collapse-revert phenomenon. The smaller average photon number of the initial light field, the better the fidelity of the system; the interaction intensity between light field and atoms and the circular frequency of the light field have no obvious influence on the fidelity of the system.关键词
玻色-爱因斯坦凝聚/保真度/单模光场/二能级原子Key words
Bose-Einstein condensate/fidelity/single-mode light field/two-level atoms分类
数理科学引用本文复制引用
李明..原子玻色-爱因斯坦凝聚与单模光场相互作用系统的保真度[J].电子科技大学学报,2014,(4):542-546,5.基金项目
国家自然科学基金(11364010) （11364010）
