Spin excitations in dipolar spin-1 condensates | |
Deng, Sheng-Xiong; Shi, Tao2; Yi, Su1,2 | |
刊名 | PHYSICAL REVIEW A |
2020 | |
卷号 | 102期号:1页码:13305 |
ISSN号 | 2469-9926 |
DOI | 10.1103/PhysRevA.102.013305 |
英文摘要 | We investigate the low-lying spin excitation of a trapped dipolar spin-1 condensate with antiferromagnetic spin-exchange interactions by numerically solving the Bogoliubov-de Gennes equations. We explore the behavior of the excited modes with different dipolar interaction strength and in different trap geometries. We also discuss the origin of the Nambu-Goldstone (NG) zero modes in different phases by analyzing the broken continuous symmetries of the ground-state wave function. In particular, we find a quasi-NG mode in the antiferromagnetic phase. These studies lead to the discovery of an unusual quantum phase and the exact critical trap aspect ratio for one of the phase transitions. |
学科主题 | Optics ; Physics |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.itp.ac.cn/handle/311006/27484] |
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.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 3.Univ Chinese Acad Sci, CAS Ctr Excellence Topol Quantum Computat, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Deng, Sheng-Xiong,Shi, Tao,Yi, Su. Spin excitations in dipolar spin-1 condensates[J]. PHYSICAL REVIEW A,2020,102(1):13305. |
APA | Deng, Sheng-Xiong,Shi, Tao,&Yi, Su.(2020).Spin excitations in dipolar spin-1 condensates.PHYSICAL REVIEW A,102(1),13305. |
MLA | Deng, Sheng-Xiong,et al."Spin excitations in dipolar spin-1 condensates".PHYSICAL REVIEW A 102.1(2020):13305. |
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