Spin excitations in dipolar spin-1 condensates

doi:10.1103/PhysRevA.102.013305

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	Spin excitations in dipolar spin-1 condensates
	Deng, Sheng-Xiong ; Shi, Tao 2; Yi, Su 1,2
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.