期刊
JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL
卷 38, 期 33, 页码 7215-7237出版社
IOP PUBLISHING LTD
DOI: 10.1088/0305-4470/38/33/002
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For stochastic processes leading to condensation, the condensate, once it is formed, performs an ergodic stationary-state motion over the system. We analyse this motion, and especially its characteristic time, for zero-range processes. The characteristic time is found to grow with the system size much faster than the diffusive time scale, but not exponentially fast. This holds both in the mean-field geometry and on finite-dimensional lattices. In the generic situation where the critical mass distribution follows a power law, the characteristic time grows as a power of the system size.
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