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arXiv 0808.3271cond-mat.stat-mech
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对Horowitz和Jarzynski“自由能计算中功-哈密顿联系的失败”一文的答复

Reply to Comment on "Failure of the work-Hamiltonian connection for free-energy calculations" by Horowitz and Jarzynski

J. M. G. Vilar, J. M. Rubi

摘要:

我们证明了Horowitz和Jarzynski的评论[arXiv:0808.1224]作为主要结果得到了一个调和系统的一般自由能变化,在宏观极限下,它不能恢复教科书上关于虎克弹簧能量变化的表达式。原因是霍洛维茨和雅辛斯基不正确地用哈密顿量的参数变化来识别功,而不是用标准量,力乘以位移。

英文摘要:

We show that the Comment [arXiv:0808.1224] by Horowitz and Jarzynski obtains as a main result a general free energy change for a harmonic system that in the macroscopic limit does not recover the textbook expression for the energy change of a Hookean spring. The reason is that Horowitz and Jarzynski improperly identify work with parametric changes of the Hamiltonian instead of with the standard quantity, force times displacement.

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