منابع مشابه
Diluted Generalized Random Energy Model
We introduce a layered random spin model, equivalent to the Generalized Random Energy Model (GREM) for some range of parameters. Similarly to diluted spin system, the diluted GREM (DGREM) is introduced. It can be applied to calculate approximatly thermodynamical properties of spin glass models in low dimensions. Derrida’s Random Energy Model (REM) [1] is becoming more and more popular. It has b...
متن کاملOn a nonhierarchical version of the generalized random energy model
We introduce a natural nonhierarchical version of Derrida's generalized random energy model. We prove that, in the thermodynamical limit, the free energy is the same as that of a suitably constructed GREM. The Annals of Applied Probability 2006, Vol. 16, No. 1, 1–14 DOI: 10.1214/105051605000000665 © Institute of Mathematical Statistics, 2006 ON A NONHIERARCHICAL VERSION OF THE GENERALIZED RANDO...
متن کاملVariational Bounds for the Generalized Random Energy Model
We compute the pressure of the random energy model (REM) and generalized random energy model (GREM) by establishing variational upper and lower bounds. For the upper bound, we generalize Guerra’s “broken replica symmetry bounds”, and identify the random probability cascade as the appropriate random overlap structure for the model. For the REM the lower bound is obtained, in the high temperature...
متن کاملGeneralized Holographic Dark Energy Model
In this paper, the model of the holographic Chaplygin gas has been extended to two general cases: first the case of a modified variable Chaplygin gas and second the case of the viscous generalized Chaplygin gas. The dynamics of the model is expressed by the use of scalar fields and scalar potentials.
متن کاملDiluted random fields in Mixed cyanide crystals
A percolation argument and a dilute compressible random field Ising model are used to present a simple model for mixed cyanide crystals. The model reproduces quantitatively several features of the phase diagrams altough some crude approximations are made. In particular critical thresholds xc at which ferroelastic first order transitions disappear, are calculated. Moreover, transitions are found...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Experimental and Theoretical Physics Letters
سال: 1998
ISSN: 0021-3640,1090-6487
DOI: 10.1134/1.567688