典型文献
Fluctuation assisted collapses of Bose-Einstein condensates
文献摘要：
We study the collapse dynamics of a Bose-Einstein condensate subjected to a sudden change of the scattering length to a negative value by adopting the self-consistent Gaussian state theory for mixed states.Compared to the Gross-Pitaevskii and the Hartree-Fock-Bogoliubov approaches,both fluctuations and three-body loss are properly treated in our theory.We find a new type of collapse assisted by fluctuations that amplify the attractive interaction between atoms.Moreover,the calculation of the fluctuated atoms,the entropy,and the second-order correlation function showed that the collapsed gas significantly deviated from a pure state.
文献关键词：
中图分类号：
作者姓名：
Junqiao Pan;Yuqi Wang;Tao Shi;Su Yi
作者机构：
CAS Key Laboratory of Theoretical Physics,Institute of Theoretical Physics,Chinese Academy of Sciences,Beijing 100190,China;School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100049,China;CAS Center for Excellence in Topological Quantum Computation,University of Chinese Academy of Sciences,Beijing 100049,China
文献出处：
引用格式：
[1]Junqiao Pan;Yuqi Wang;Tao Shi;Su Yi-.Fluctuation assisted collapses of Bose-Einstein condensates)[J].理论物理,2022(09):195-202
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B类：
Fluctuation,assisted,collapses,Bose,Einstein,condensates,We,study,dynamics,subjected,sudden,change,scattering,length,negative,value,by,adopting,self,consistent,Gaussian,theory,mixed,states,Compared,Gross,Pitaevskii,Hartree,Fock,Bogoliubov,approaches,both,fluctuations,three,body,loss,properly,treated,our,find,new,type,that,amplify,attractive,interaction,between,atoms,Moreover,calculation,fluctuated,entropy,second,order,correlation,function,showed,collapsed,gas,significantly,deviated,from,pure
AB值：
0.715725
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