期刊
JOURNAL OF PHYSICAL CHEMISTRY B
卷 104, 期 16, 页码 3866-3874出版社
AMER CHEMICAL SOC
DOI: 10.1021/jp993491m
关键词
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We introduce a fractional Kramers equation for a particle interacting with a thermal heat bath and external nonlinear force field. For the force-free case, the velocity damping follows the Mittag-Leffler relaxation and the diffusion is enhanced. The equation obeys the generalized Einstein relation, and its stationary solution is the Boltzmann distribution. Our results are compared to previous results on enhanced Levy type of diffusion derived from stochastic collision models.
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