期刊
PHYSICAL REVIEW LETTERS
卷 104, 期 13, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.104.130401
关键词
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资金
- NSF [NF68736]
- NORT of Hungary [ERC_HU_09 OPTOMECH]
- Spanish MEC [FIS2008-00784]
- QOIT
- ERC [QUAGATUA]
- EU STREP NAMEQUAM
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.
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