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Universal Fermi distribution of semiclassical nonequilibrium Fermi states

机译:半经典非平衡费米态的通用费米分布

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摘要

When a classical device suddenly perturbs a degenerate Fermi gas, a semiclassical nonequilibrium Fermi state arises. Similar states appear when a charge is transferred into a Fermi gas through a localized contact. Semiclassical Fermi states are characterized by a Fermi energy or Fermi momentum that slowly depends on space and/or time. We show that the Fermi distribution of a semiclassical Fermi state has a universal nature. It is described by Airy functions regardless of the details of the perturbation.
机译:当经典装置突然扰动简并的费米气体时,会出现半经典费米状态。当电荷通过局部接触转移到费米气体中时,会出现类似的状态。半经典费米状态的特征是费米能量或费米动量缓慢地取决于空间和/或时间。我们证明了半经典费米状态的费米分布具有普遍性。无论扰动的细节如何,都由Airy函数描述。

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