Interaction quenches of Fermi gases
Interaction quenches of Fermi gases
复制标题
费米气体的相互作用猝灭
DOI：
10.1103/physreva.80.061602
复制
发表时间：
2009
影响因子：
2.9
通讯作者：
G. Uhrig
中科院分区：
文献类型：
--
作者：
G. Uhrig
结果表明，一旦费米子之间的相互作用突然开启，费米气体动量分布的跳跃在小时间和中间时间内都是平稳的。这种跳跃不会突然消失。动量空间中发生跳变的轨迹是非相互作用费米海的轨迹。费米曲面几何没有松弛。
It is shown that the jump in the momentum distribution of Fermi gases evolves smoothly for small and intermediate times once an interaction between the fermions is suddenly switched on. The jump does not vanish abruptly. The loci in momentum space where the jumps occur are those of the noninteracting Fermi sea. No relaxation of the Fermi surface geometry takes place.