Disordering Effects of Color in Nonequilibrium Phase Transitions Induced by Multiplicative Noise
- 29 September 1997
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 79 (13), 2389-2393
- https://doi.org/10.1103/physrevlett.79.2389
Abstract
The model introduced by Van den Broeck, Parrondo, and Toral [Phys. Rev. Lett. 73, 3395 (1994)]—leading to a second-order-like noise-induced nonequilibrium phase transition which shows reentrance as a function of the (multiplicative) noise intensity —is investigated beyond the white-noise assumption. Through a Markovian approximation and within a mean-field treatment it is found that, in striking contrast with the usual behavior for equilibrium phase transitions, for noise self-correlation time , the stable phase for (diffusive) spatial coupling is always the disordered one. Another surprising result is that a large noise “memory” also tends to destroy order. These results are supported by numerical simulations.
Keywords
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