Quantum statistics of the collective excitations of an atomic ensemble inside a cavity
文献类型：期刊论文
| 作者 | Sun, CP
|
| 刊名 | PHYSICAL REVIEW A
 |
| 出版日期 | 2012 |
| 卷号 | 85期号:2页码:23801 |
| 关键词 | BODY APPROXIMATION METHODS DIMENSIONAL HILBERT-SPACE SMALL TUNNEL-JUNCTIONS SOLVABLE MODEL PERTURBATION THEORY RYDBERG BLOCKADE OPTICAL STATES 2-LEVEL ATOMS SINGLE ATOMS VALIDITY |
| ISSN号 | 1050-2947 |
| 通讯作者 | Huang, JF (reprint author), Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China. |
| 英文摘要 | We study the quantum statistical properties of the collective excitations of an atomic ensemble inside a high-finesse cavity. In the large-detuning regime, it is found that the virtual photon exchange can induce a long-range interaction between atoms, which results in correlated excitations. In particular, the atomic blockade phenomenon occurs when the induced long-range interaction effectively suppresses the double atomic excitation, when the average photon number takes certain values, which makes the two nearest energy levels degenerate. We also show that quantum phase transitions occur in the indirectly interacting atomic ensemble when the average photon number reaches several critical points. In this sense, the quantum statistical properties of the collective excitations are very sensitive to the change of the average photon number. Our model exhibits quantum phase transitions similar to the ones in the Lipkin-Meshkov-Glick model. Our proposal could be implemented in a variety of systems including cavity quantum electrodynamics (QED), Bose-Einstein condensates, and circuit QED. |
| 学科主题 | Physics |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [10935010, 11074261]; Laboratory of Physical Sciences, National Security Agency, Army Research Office, National Science Foundation [0726909]; MEXT Kakenhi on Quantum Cybernetics; JSPS-FIRST |
| 原文出处 | http://dx.doi.org/10.1103/PhysRevA.85.023801 |
| 语种 | 英语 |
| WOS记录号 | WOS:000299846000006 |
| 公开日期 | 2014-04-25 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/15165]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 推荐引用方式 GB/T 7714 | Sun, CP. Quantum statistics of the collective excitations of an atomic ensemble inside a cavity[J]. PHYSICAL REVIEW A,2012,85(2):23801. |
| APA | Sun, CP.(2012).Quantum statistics of the collective excitations of an atomic ensemble inside a cavity.PHYSICAL REVIEW A,85(2),23801. |
| MLA | Sun, CP."Quantum statistics of the collective excitations of an atomic ensemble inside a cavity".PHYSICAL REVIEW A 85.2(2012):23801. |
入库方式： OAI收割
来源：理论物理研究所
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