Goldstone and Higgs modes of photons inside a cavity
文献类型：期刊论文
| 作者 | Yu, YX ; Ye, JW ; Liu, WM |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2013 |
| 卷号 | 3 |
| ISSN号 | 2045-2322 |
| 通讯作者 | Ye, JW (reprint author), Mississippi State Univ, Dept Phys & Astron, POB 5167, Mississippi State, MS 39762 USA. |
| 中文摘要 | Goldstone and Higgs modes have been detected in various condensed matter, cold atom and particle physics experiments. Here, we demonstrate that the two modes can also be observed in optical systems with only a few (artificial) atoms inside a cavity. We establish this connection by studying the U(1)/Z(2) Dicke model where N qubits (atoms) coupled to a single photon mode. We determine the Goldstone and Higgs modes inside the super-radiant phase and their corresponding spectral weights by performing both 1/J = 2/N expansion and exact diagonalization (ED) study at a finite N. We find nearly perfect agreements between the results achieved by the two approaches when N gets down even to N = 2. The quantum finite size effects at a few qubits make the two modes quite robust against an effectively small counterrotating wave term. We present a few schemes to reduce the critical coupling strength, so the two modes can be observed in several current available experimental systems by just conventional optical measurements. |
| 资助信息 | Beijing Municipal Commission of Education [PHR201107121]; NKBRSFC [2011CB921502, 2012CB821300]; NSFC [61227902]; [NSF-DMR-1161497]; [NSFC-11074173]; [NSFC-11174210] |
| 语种 | 英语 |
| 公开日期 | 2014-01-16 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/57047]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Yu, YX,Ye, JW,Liu, WM. Goldstone and Higgs modes of photons inside a cavity[J]. SCIENTIFIC REPORTS,2013,3. |
| APA | Yu, YX,Ye, JW,&Liu, WM.(2013).Goldstone and Higgs modes of photons inside a cavity.SCIENTIFIC REPORTS,3. |
| MLA | Yu, YX,et al."Goldstone and Higgs modes of photons inside a cavity".SCIENTIFIC REPORTS 3(2013). |
入库方式： OAI收割
来源：物理研究所
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