Entropy Burst from Parabolic Potentials

Details Entropy Burst from Parabolic Potentials Entropy Burst from Parabolic Potentials

2000-07-03

arxiv.org/abs/cond-mat/0007014v1

Physics

Condensed Matter

Statistical Mechanics

6 pages, AmS-LaTeX, 1 figure

Scientific paper

10.1016/S0375-9601(01)00037-8

The change of the energy of ground state is investigated in a thermodynamical process by using the model described by one-dimensional harmonic oscillator + two-dimensional isotropic parabolic potential barrier such as $V(x,y,z)=m\omega^2 x^2/2 -m\gamma^2 (y^2+z^2)/2$. In the process where two independent many-particle systems suddenly touch with each other, it is shown that the lowest energy after the interaction can possibly be smaller than that before the interaction and then the entropy burst can occur.

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