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arXiv math-ph/0309034math-phmath.MP
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非平衡定态的稳定性

The Stability of the Non-Equilibrium Steady States

Yoshiko Ogata

摘要:

我们证明了远离平衡态的自由晶格费米子模型的非平衡定态是宏观不稳定的。将问题转化为{ \it Liouville算子}的谱分析问题。我们用正交换子的方法研究了它,在格点费米子系统上构造了一个正交换子,其色散关系为$ω(k)=\cos k-γ$。

英文摘要:

We show that the non-equilibrium steady state (NESS) of the free lattice Fermion model far from equilibrium is macroscopically unstable. The problem is translated to that of the spectral analysis of {\it Liouville Operator}. We use the method of positive commutators to investigate it. We construct a positive commutator on the lattice Fermion system, whose dispersion relation is $ω(k)=\cos k-γ$.

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