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Observation of the Efimovian expansion in scale-invariant Fermi gases
文献类型:期刊
作者:Deng, Shujin[1]  Shi, Zhe-Yu[2]  Diao, Pengpeng[3]  Yu, Qianli[4]  Zhai, Hui[5]  Qi, Ran[6]  Wu, Haibin[7]  
机构:[1]East China Normal Univ, State Key Lab Precis Spect, Shanghai 200062, Peoples R China.;
[2]Tsinghua Univ, Inst Adv Study, Beijing 100084, Peoples R China.;
[3]East China Normal Univ, State Key Lab Precis Spect, Shanghai 200062, Peoples R China.;
[4]East China Normal Univ, State Key Lab Precis Spect, Shanghai 200062, Peoples R China.;
[5]Tsinghua Univ, Inst Adv Study, Beijing 100084, Peoples R China.;
[6]Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China.;
[7]East China Normal Univ, State Key Lab Precis Spect, Shanghai 200062, Peoples R China.;Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Peoples R China.;
通讯作者:Wu, HB (reprint author), East China Normal Univ, State Key Lab Precis Spect, Shanghai 200062, Peoples R China.; Qi, R (reprint author), Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China.; Wu, HB (reprint author), Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Peoples R China.
期刊名称:SCIENCE影响因子和分区
年:2016
卷:353
期:6297
页码:371-374
收录情况:SCI(E)(WOS:000380583400037)  PubMed(27463669)  
ISSN:0036-8075
所属部门:物理学系
摘要:
Scale invariance plays an important role in unitary Fermi gases. Discrete scaling symmetry manifests itself in quantum few-body systems such as the Efimov effect. Here, we report on the theoretical prediction and experimental observation of a distinct type of expansion dynamics for scale-invariant quantum gases. When the frequency of the harmonic trap holding the gas decreases continuously as the inverse of time t, the expansion of the cloud size exhibits a sequence of plateaus. The locations of ...More
学科:综合性期刊
重要成果类型:重要期刊
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