Knowledge Management System of Institute of Theoretical Physics, CAS
Huang, JF; Ai, Q; Deng, YG; Sun, CP ; Nori, F; Huang, JF (reprint author), Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China.
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| Quantum statistics of the collective excitations of an atomic ensemble inside a cavity | |
| Source Publication | PHYSICAL REVIEW A
 |
| Language | 英语 |
| Keyword | Body Approximation Methods Dimensional Hilbert-space Small Tunnel-junctions Solvable Model Perturbation Theory Rydberg Blockade Optical States 2-level Atoms Single Atoms Validity |
| Abstract | 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. |
| 2012 | |
| ISSN | 1050-2947 |
| Volume | 85Issue:2Pages:23801 |
| Subject Area | Physics |
| Indexed By | SCI |
| Funding Organization | 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 ; 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 ; 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 ; 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 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/15165 |
| Collection | SCI期刊论文 |
| Corresponding Author | Huang, JF (reprint author), Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China. |
| Recommended Citation GB/T 7714 | Huang, JF,Ai, Q,Deng, YG,et al. Quantum statistics of the collective excitations of an atomic ensemble inside a cavity[J]. PHYSICAL REVIEW A,2012,85(2):23801. |
| APA | Huang, JF,Ai, Q,Deng, YG,Sun, CP,Nori, F,&Huang, JF .(2012).Quantum statistics of the collective excitations of an atomic ensemble inside a cavity.PHYSICAL REVIEW A,85(2),23801. |
| MLA | Huang, JF,et al."Quantum statistics of the collective excitations of an atomic ensemble inside a cavity".PHYSICAL REVIEW A 85.2(2012):23801. |
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