Degenerate fermion gas heating by hole creation.
Degenerate fermion gas heating by hole creation.
复制标题
通过产生空穴来加热简并费米子气体。
DOI：
10.1103/physrevlett.87.240403
复制
发表时间：
2001
影响因子：
8.6
通讯作者：
Eddy Timmermans
中科院分区：
文献类型：
--
作者：
Eddy Timmermans
如果捕获的气体是简并的费米子系统，则从原子陷阱中移除粒子的损失过程会在单个粒子分布中留下空洞。空穴的出现提高了温度，我们表明：(I)如果初始温度远低于费米温度T(F)，则加热是显著的，以及(Ii)在系统寿命的一半后将温度提高到T&gT；或=T(F)/4，而与初始温度无关。空穴加热对观察原子陷阱中库珀配对的前景有重要影响。
Loss processes that remove particles from an atom trap leave holes behind in the single particle distribution if the trapped gas is a degenerate fermion system. The appearance of holes increases the temperature and we show that the heating (i) is significant if the initial temperature is well below the Fermi temperature T(F), and (ii) increases the temperature to T> or =T(F)/4 after half of the system's lifetime, regardless of the initial temperature. The hole heating has important consequences for the prospect of observing Cooper pairing in atom traps.