用绝热近似描述相位滑移的尝试
Attempt to describe phase slips by means of an adiabatic approximation
摘要：
在描述远低于超导体临界温度的非平衡态时，需要用到Keldysh-Usadel方法（KUT）。然而，非平稳KUT尚未被应用于现实电路。此外，固定KUT已被应用在时间独立性不能保证的情况下。作为对这一过程的可验证性检查，我们求助于一个玩具模型（金斯堡-朗道模型），在涉及非常缓慢的进化的情况下。我们发现，即使在这些情况下，忽略时间变化的显式影响，导致不准确的，甚至定性错误的相位滑移的描述。
英文摘要：
In the description of non equilibrium situations in a superconductor at temperatures far below its critical temperature, the Keldysh-Usadel technique (KUT) is required. However, the non-stationary KUT has not been applied to realistic circuits. Moreover, the stationary KUT has been applied in situations where time independence is not guaranteed. As a plausibility check for this procedure, we resort to a toy model (the Ginzburg-Landau model), in situations that involve very slow evolution. We find that, even in these situations, neglecting the explicit influence of time variation leads to inaccurate or even qualitatively wrong description of phase slips.
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