Directed Polymers in Random Environment are Diffusive at Weak Disorder

dc.creatorComets, Francis
dc.creatorYoshida, Nobuo
dc.date2004-11-10
dc.date2005-06-10
dc.date.accessioned2026-07-07T05:14:10Z
dc.date.available2026-07-07T05:14:10Z
dc.descriptionIn this paper, we consider directed polymers in random environment with discrete space and time. For transverse dimension at least equal to 3, we prove that diffusivity holds for the path in the full weak disorder region, i.e., where the partition function differs from its annealed value only by a non-vanishing factor. Deep inside this region, we also show that the quenched averaged energy has fluctuations of order 1. In complete generality (arbitrary dimension and temperature), we prove monotonicity of the phase diagram in the temperature.
dc.identifierhttps://arxiv.org/abs/math/0411223
dc.identifierhttp://arxiv.org/abs/math/0411223
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/73175
dc.subjectProbability
dc.subjectMSC (2000) 60K35; 60G42, 82A51, 82D30
dc.titleDirected Polymers in Random Environment are Diffusive at Weak Disorder
dc.typetext

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