典型文献
Logarithmic Quantum Time Crystal
文献摘要：
We investigate a time-independent many-boson system,whose ground states are quasi-degenerate and become infinitely degenerate in the thermodynamic limit.Out of these quasi-degenerate ground states we construct a quantum state that evolves in time with a period that is logarithmically proportional to the number of particles,that is,T～log N.This boson system in such a state is a quantum time crystal as it approaches the ground state in the thermodynamic limit.The logarithmic dependence of its period on the total particle number N makes it observable experimentally even for systems with very large number of particles.Possible experimental proposals are discussed.
文献关键词：
中图分类号：
作者姓名：
Haipeng Xue;Lingchiii Kong;Biao Wu
作者机构：
International Center for Quantum Materials,School of Physics,Peking University,Beijing 100871,China;Wilczek Quantum Center,School of Physics and Astronomy,Shanghai Jiao Tong University,Shanghai 200240,China;Collaborative Innovation Center of Quantum Matter,Beijing 100871,China
文献出处：
引用格式：
[1]Haipeng Xue;Lingchiii Kong;Biao Wu-.Logarithmic Quantum Time Crystal)[J].中国物理快报（英文版）,2022(08):9-13
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Logarithmic,Quantum,Time,Crystal,We,investigate,independent,many,boson,whose,ground,states,are,quasi,degenerate,become,infinitely,thermodynamic,limit,Out,these,we,construct,quantum,that,evolves,period,logarithmically,proportional,number,particles,This,such,crystal,approaches,dependence,its,total,makes,observable,experimentally,even,systems,very,large,Possible,proposals,discussed
AB值：
0.558395
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