Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Matteo Campellone"'
Publikováno v:
Physical Review E. 58:5455-5460
In this note we formulate a finite dimensional generalization of the Random Energy Model (REM) where we introduce a geometry and spatial correlations between energies. We study the model in dimension one by transfer matrix techniques and we look at t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3950355d7643b681f78506c521684a6f
https://doi.org/10.1103/physreve.58.5455
https://doi.org/10.1103/physreve.58.5455
Publikováno v:
Journal of Physics A: Mathematical and General. 31:1893-1900
In this work we calculate the dynamical fluctuations at O(1/N) in the low temperature phase of the $p=2$ spherical spin glass model. We study the large-times asymptotic regimes and we find, in a short time-differences regime, a fluctuation dissipatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a294739d2cbf720868fe499027573a82
https://doi.org/10.1088/0305-4470/31/8/003
https://doi.org/10.1088/0305-4470/31/8/003
In this note we introduce a method to calculate the finite volume corrections to the mean field results for the free energy when replica symmetry is broken at one-step. We find that the naive results are modified by the presence of additional correct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6921e42602d5f458b7d309c805296c0c
http://hdl.handle.net/11573/6458
http://hdl.handle.net/11573/6458
In this work we study numerically a short range p-spin glass model in three dimensions. The behaviour of the model appears to be remarkably different from mean field predictions. In fact it shares some features typical of models with full replica-sym
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::232a9895ab12ddb3070a6dce8ed63099
http://arxiv.org/abs/cond-mat/9804291
http://arxiv.org/abs/cond-mat/9804291
We generalise Bray's self-consistent screening approximation to describe the critical dynamics of the $\phi^4$ theory. In order to obtain the dynamical exponent $z$, we have to make an ansatz for the form of the scaling functions, which fortunately c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0b0b8a3ac3225f21b5a10a656b2583c
http://arxiv.org/abs/cond-mat/9609122
http://arxiv.org/abs/cond-mat/9609122
Autor:
Matteo Campellone
Models of spin glasses are studied with a phase transition discontinuous in the Parisi order parameter. It is assumed that the leading order corrections to the thermodynamic limit of the high temperature free energy are due to the existence of a meta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4076ae8cea48cf36108281687f99dc01
http://arxiv.org/abs/cond-mat/9410107
http://arxiv.org/abs/cond-mat/9410107