典型文献
Power-law scalings in weakly-interacting Bose gases at quantum criticality
文献摘要：
Weakly interacting quantum systems in low dimensions have been investi-gated for a long time,but there still remain a number of open questions and a lack of explicit expressions of physical properties of such systems.In this work,we find power-law scalings of thermodynamic observables in low-dimensional interacting Bose gases at quantum criticality.We present a physical picture for these systems with the repulsive interaction strength approaching zero;namely,the competition between the kinetic and inter-action energy scales gives rise to power-law scalings with respect to the interaction strength in characteristic thermodynamic observables.This prediction is supported by exact Bethe ansatz solutions in one dimension,demonstrating a simple 1/3-power-law scaling of the critical entropy per particle.Our method also yields results in agreement with a non-perturba-tive renormalization-group computation in two dimensions.These results provide a new perspective for understanding many-body phenomena induced by weak interactions in quantum gases.
文献关键词：
中图分类号：
作者姓名：
Ming-Cheng Liang;Zhi-Xing Lin;Yang-Yang Chen;Xi-Wen Guan;Xibo Zhang
作者机构：
International Center for Quantum Materials,School of Physics,Peking University,Beijing 100871,China;Collaborative Innovation Center of Quantum Matter,Beijing 100871,China;State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics,Wuhan Institute of Physics and Mathematics,Innovation Academy for Precision Measurement Science and Technology,Chinese Academy of Sciences,Wuhan 430071,China;Institute of Modern Physics,Northwest University,Xi'an 710127,China;Department of Theoretical Physics,Research School of Physics and Engineering,Australian National University,Canberra ACT 0200,Australia;Beijing Academy of Quantum Information Sciences,Beijing 100193,China
文献出处：
引用格式：
[1]Ming-Cheng Liang;Zhi-Xing Lin;Yang-Yang Chen;Xi-Wen Guan;Xibo Zhang-.Power-law scalings in weakly-interacting Bose gases at quantum criticality)[J].物理学前沿,2022(06):223-229
A类：
scalings
B类：
Power,law,weakly,interacting,Bose,gases,quantum,criticality,Weakly,systems,low,dimensions,have,been,investi,gated,long,but,there,still,remain,number,open,questions,lack,explicit,expressions,physical,properties,such,In,this,work,find,power,thermodynamic,observables,dimensional,present,picture,these,repulsive,strength,approaching,zero,namely,competition,between,kinetic,energy,scales,gives,rise,respect,characteristic,This,prediction,supported,by,exact,Bethe,ansatz,solutions,one,demonstrating,simple,entropy,particle,Our,method,also,yields,results,agreement,perturba,renormalization,group,computation,two,These,provide,new,perspective,understanding,many,body,phenomena,induced,interactions
AB值：
0.60453
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