The equivalence of ensembles for classical systems of particles

The equivalence of ensembles for classical systems of particles
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经典粒子系统系综的等价性

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发表时间:
1995
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通讯作者:
H. Georgii
H. Georgii
中科院分区:
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文献类型:
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作者:
H. Georgii

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对于具有标准哈密顿量的经典相空间中的粒子系统,我们考虑有限框中的(空间平均)微正则吉布斯分布。我们证明了沿着合适的子序列存在无限体积极限,并且是大正则吉布斯测度。在此过程中,我们建立了热力学熵密度的变分公式,以及大正则吉布斯测度的变分表征。
For systems of particles in classical phase space with standard Hamiltonian, we consider (spatially averaged) microcanonical Gibbs distributions in finite boxes. We show that infinite-volume limits along suitable subsequences exist and are grand canonical Gibbs measures. On the way, we establish a variational formula for the thermodynamic entropy density, as well as a variational characterization of grand canonical Gibbs measures.