Dicke-Model Phase Transition in the Quantum Motion of a Bose-Einstein Condensate in an Optical Cavity 论文
2010Physical Review Letters引用 398
Quantum Information and CryptographyCold Atom Physics and Bose-Einstein CondensatesMechanical and Optical Resonators
详细信息
- 发表期刊/会议
- Physical Review Letters
- 发表日期
- 2010-04-02
- 发表年份
- 2010
关键词
Quantum Information and CryptographyCold Atom Physics and Bose-Einstein CondensatesMechanical and Optical Resonators
摘要
We show that the motion of a laser-driven Bose-Einstein condensate in a high-finesse optical cavity realizes the spin-boson Dicke model. The quantum phase transition of the Dicke model from the normal to the superradiant phase corresponds to the self-organization of atoms from the homogeneous into a periodically patterned distribution above a critical driving strength. The fragility of the ground state due to photon measurement induced backaction is calculated.