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Frontiers of Physics

ISSN 2095-0462

ISSN 2095-0470(Online)

CN 11-5994/O4

邮发代号 80-965

2019 Impact Factor: 2.502

Frontiers of Physics  2018, Vol. 13 Issue (5): 136402   https://doi.org/10.1007/s11467-018-0811-1
  本期目录
Analytic calculation of high-order corrections to quantum phase transitions of ultracold Bose gases in bipartite superlattices
Zhi Lin1,2(), Wanli Liu1()
1. Department of Physics and State Key Laboratory of Surface Physics, Fudan University, Shanghai 200433, China
2. Shenzhen Institute of Research and Innovation, The University of Hong Kong, Shenzhen 518063, China
 全文: PDF(918 KB)  
Abstract

We clarify some technical issues in the present generalized effective-potential Landau theory (GEPLT) to make the GEPLT more consistent and complete. Utilizing this clarified GEPLT, we analytically study the quantum phase transitions of ultracold Bose gases in bipartite superlattices at zero temperature. The corresponding quantum phase boundaries are analytically calculated up to the third-order hopping, which are in excellent agreement with the quantum Monte Carlo (QMC) simulations.

Key wordsultracold Bose gases    quantum phase transition    bipartite superlattice    generalized effective-potential Landau theory
收稿日期: 2018-04-28      出版日期: 2018-07-10
Corresponding Author(s): Zhi Lin,Wanli Liu   
 引用本文:   
. [J]. Frontiers of Physics, 2018, 13(5): 136402.
Zhi Lin, Wanli Liu. Analytic calculation of high-order corrections to quantum phase transitions of ultracold Bose gases in bipartite superlattices. Front. Phys. , 2018, 13(5): 136402.
 链接本文:  
https://academic.hep.com.cn/fop/CN/10.1007/s11467-018-0811-1
https://academic.hep.com.cn/fop/CN/Y2018/V13/I5/136402
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