Bosonic thermoelectric transport and breakdown of universality
作者: A RançonCheng ChinK Levin
作者单位: 1James Franck Institute and Department of Physics, University of Chicago, Chicago, IL 60637, USA
2Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, USA
刊名: New Journal of Physics, 2014, Vol.16 (11)
来源数据库: Institute of Physics Journal
DOI: 10.1088/1367-2630/16/11/113072
原始语种摘要: We discuss the general principles of transport in normal phase atomic gases, comparing Bose and Fermi systems. Our study shows that two-dimensional bosonic transport is non-universal with respect to different dissipation mechanisms. Near the superfluid transition temperature T c , a striking similarity between the fermionic and bosonic transport emerges because super-conducting (fluid) fluctuation transport for Fermi gases is dominated by the bosonic, Cooper pair component. As in fluctuation theory, one finds that the Seebeck coefficient changes sign at T c and the Lorenz number approaches zero at T c . Our findings appear quantitatively consistent with recent Bose gas experiments.
全文获取路径: IOP  (合作)
影响因子:4.063 (2012)

  • transport 输运
  • universality 通用性
  • conducting 导电的
  • thermoelectric 热电的
  • transition 转移
  • breakdown 故障
  • fluctuation 起伏
  • quantitatively 定量的
  • phase 相位
  • component 成分