Coherent spin dynamics in spin-imbalanced ferromagnetic spinor condensates

doi:10.1088/1674-1056/24/1/010304

›› 2015, Vol. 24 ›› Issue (1): 10304-010304.doi: 10.1088/1674-1056/24/1/010304

Coherent spin dynamics in spin-imbalanced ferromagnetic spinor condensates

邱海波^{a b}, 武丽伟^b

a School of Science, Xi'an University of Posts and Telecommunications, Xi'an 710121, China;
b School of Applied Science, Beijing University of Science and Technology, Beijing 100083, China

收稿日期:2014-04-30 修回日期:2014-07-16 出版日期:2015-01-05 发布日期:2015-01-05
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 11104217), the Natural Science Foundation of Shaanxi Province, China (Grant No. 2014JQ1022), and the Youth Foundation of XUPT, China (Grant No. ZL2013-36).

Coherent spin dynamics in spin-imbalanced ferromagnetic spinor condensates

Qiu Hai-Bo (邱海波)^{a b}, Wu Li-Wei (武丽伟)^b

a School of Science, Xi'an University of Posts and Telecommunications, Xi'an 710121, China;
b School of Applied Science, Beijing University of Science and Technology, Beijing 100083, China

Received:2014-04-30 Revised:2014-07-16 Online:2015-01-05 Published:2015-01-05
Contact: Qiu Hai-Bo E-mail:phyqiu@gmail.com
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 11104217), the Natural Science Foundation of Shaanxi Province, China (Grant No. 2014JQ1022), and the Youth Foundation of XUPT, China (Grant No. ZL2013-36).

摘要/Abstract

摘要： We study the coherent spin dynamics of a ferromagnetic spinor Bose-Einstein condensate (BEC) in its domain formation process with an arbitrary spin configuration. Through a simplified schematic view of the domain structure, a semiclassical theory that captures the essential dynamics of the system is presented, and the coherent spin mixing dynamics can be understood in terms of oscillation in the phase space diagram. Using the phase diagram analysis method, we identify new phases, including the π phase oscillation and the running phase for the spin-imbalanced ferromagnetic spinor BEC.

关键词: spinor Bose-Einstein condensate, domain formation, spin dynamics

Abstract: We study the coherent spin dynamics of a ferromagnetic spinor Bose-Einstein condensate (BEC) in its domain formation process with an arbitrary spin configuration. Through a simplified schematic view of the domain structure, a semiclassical theory that captures the essential dynamics of the system is presented, and the coherent spin mixing dynamics can be understood in terms of oscillation in the phase space diagram. Using the phase diagram analysis method, we identify new phases, including the π phase oscillation and the running phase for the spin-imbalanced ferromagnetic spinor BEC.

Key words: spinor Bose-Einstein condensate, domain formation, spin dynamics

中图分类号: (Entanglement and decoherence in Bose-Einstein condensates)

03.75.Gg

68.35.Rh (Phase transitions and critical phenomena)

邱海波, 武丽伟. Coherent spin dynamics in spin-imbalanced ferromagnetic spinor condensates[J]. , 2015, 24(1): 10304-010304.

Qiu Hai-Bo (邱海波), Wu Li-Wei (武丽伟). Coherent spin dynamics in spin-imbalanced ferromagnetic spinor condensates[J]. Chin. Phys. B, 2015, 24(1): 10304-010304.

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Coherent spin dynamics in spin-imbalanced ferromagnetic spinor condensates

Coherent spin dynamics in spin-imbalanced ferromagnetic spinor condensates

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