Holographic superfluid solitons with backreaction
文献类型：期刊论文
| 作者 | Xu, Zhongshan; Du, Yiqiang2,3,4; Erdmenger, Johanna2,3; Meyer, Rene2,3; Tian, Yu5; Xian, Zhuo-Yu |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2020 |
| 卷号 | 101期号:8页码:86011 |
| 关键词 | DARK SOLITONS CROSSOVER DYNAMICS WAVES |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/PhysRevD.101.086011 |
| 英文摘要 | 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. |
| 学科主题 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/27003]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 作者单位 | 1.MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA 2.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 3.Inst Theoret Phys & Astrophys, D-97074 Wurzburg, Germany 4.Wurzburg Dresden Cluster Excellence Ctqmat, D-97074 Wurzburg, Germany 5.Hanyang Univ, Dept Phys, 222 Wangshimni Ro, Seoul 04763, South Korea 6.Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：理论物理研究所
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