Zero temperature holographic superfluids with two competing orders
文献类型：期刊论文
| 作者 | Ran, Li1; Tian, Yu2,3; Zhang, Hongbao4,5,6; Zhao, Junkun1 |
| 刊名 | Physical review d
 |
| 出版日期 | 2016-08-10 |
| 卷号 | 94期号:4页码:10 |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/physrevd.94.046003 |
| 通讯作者 | Ran, li(liran@htu.edu.cn) |
| 英文摘要 | We initiate the investigation of the zero temperature holographic superfluids with two competing orders, where besides the vacuum phase, two one component superfluid phases, the coexistent superfluid phase has also been found in the anti-de sitter soliton background for the first time. we construct the complete phase diagram in the e-mu plane by numerics, which is consistent with our qualitative analysis. furthermore, we calculate the corresponding optical conductivity and sound speed by the linear response theory. the onset of the pole of optical conductivity at omega = 0 indicates that the spontaneous breaking phase always represents the superfluid phase, and the residue of the pole is increased with the chemical potential, which is consistent with the fact that the particle density is essentially the superfluid density for zero temperature superfluids. in addition, the resulting sound speed demonstrates the nonsmoothness at the critical points as the order parameter of the condensate, which indicates that the phase transitions can also be identified by the behavior of the sound speed. moreover, as expected from the boundary conformal field theory, the sound speed saturates to 1/root 2 at the large chemical potential limit for our two component holographic superfluid model. |
| WOS关键词 | PHASE-TRANSITIONS |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| WOS类目 | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 语种 | 英语 |
| WOS记录号 | WOS:000381414700008 |
| 出版者 | AMER PHYSICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2375169 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Ran, Li |
| 作者单位 | 1.Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China 2.Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China 3.Shanghai Key Lab High Temp Superconductors, Shanghai 200444, Peoples R China 4.Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China 5.Vrije Univ Brussel, Theoret Nat Kunde, Brussels, Belgium 6.Int Solvay Inst, Pl Laan 2, B-1050 Brussels, Belgium |
| 推荐引用方式 GB/T 7714 | Ran, Li,Tian, Yu,Zhang, Hongbao,et al. Zero temperature holographic superfluids with two competing orders[J]. Physical review d,2016,94(4):10. |
| APA | Ran, Li,Tian, Yu,Zhang, Hongbao,&Zhao, Junkun.(2016).Zero temperature holographic superfluids with two competing orders.Physical review d,94(4),10. |
| MLA | Ran, Li,et al."Zero temperature holographic superfluids with two competing orders".Physical review d 94.4(2016):10. |
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来源：中国科学院大学
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