Knowledge Management System of Institute of Theoretical Physics, CAS
| Xu, Zhongshan; Du, Yiqiang1,2,3; Erdmenger, Johanna1,2; Meyer, Rene1,2; Tian, Yu4; Xian, Zhuo-Yu | |
| Holographic superfluid solitons with backreaction | |
| Source Publication | PHYSICAL REVIEW D
 |
| Language | 英语 |
| Keyword | DARK SOLITONS CROSSOVER DYNAMICS WAVES |
| Abstract | Solitons are important nonperturbative excitations in superfluids. For holographic superfluids, we numerically construct "dark'' solitons that have the symmetry-restored phase at their core. A central point is that we include the gravitational backreaction of the matter fields, which becomes important at low temperatures. We study in detail the properties of these solitons under variation of the backreaction strength via tuning the gravitational constant. In particular, the depletion fraction of the particle number density at the core of the solitons is carefully investigated. In agreement with the probe-limit analysis, the depletion fraction shows the same qualitative behavior as in Bogoliubov-de Gennes theory, even if the backreaction is included. We find that the depletion decreases with increasing backreaction strength. Moreover, the inclusion of backreaction enables us to obtain the effective energy density of solitons within holography, which together with an evaluation of the surface tension leads to a simple physical explanation for the snake instability of dark solitons. |
| 2020 | |
| ISSN | 2470-0010 |
| Volume | 101Issue:8Pages:86011 |
| Cooperation Status | 国际 |
| Subject Area | Astronomy & Astrophysics ; Physics |
| MOST Discipline Catalogue | Astronomy & Astrophysics ; Physics, Particles & Fields |
| DOI | 10.1103/PhysRevD.101.086011 |
| Indexed By | SCIE |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/27003 |
| Collection | SCI期刊论文 |
| Affiliation | 1.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 2.Inst Theoret Phys & Astrophys, D-97074 Wurzburg, Germany 3.Wurzburg Dresden Cluster Excellence Ctqmat, D-97074 Wurzburg, Germany 4.Hanyang Univ, Dept Phys, 222 Wangshimni Ro, Seoul 04763, South Korea 5.MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA 6.Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Xu, Zhongshan,Du, Yiqiang,Erdmenger, Johanna,et al. Holographic superfluid solitons with backreaction[J]. PHYSICAL REVIEW D,2020,101(8):86011. |
| APA | Xu, Zhongshan,Du, Yiqiang,Erdmenger, Johanna,Meyer, Rene,Tian, Yu,&Xian, Zhuo-Yu.(2020).Holographic superfluid solitons with backreaction.PHYSICAL REVIEW D,101(8),86011. |
| MLA | Xu, Zhongshan,et al."Holographic superfluid solitons with backreaction".PHYSICAL REVIEW D 101.8(2020):86011. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Holographic superflu（2704KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | Application Full Text | |
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