scholarly journals The quantum random energy model as a limit of p-spin interactions

2020 ◽  
pp. 2060013
Author(s):  
Chokri Manai ◽  
Simone Warzel

We consider the free energy of a mean-field quantum spin glass described by a [Formula: see text]-spin interaction and a transversal magnetic field. Recent rigorous results for the case [Formula: see text], i.e. the quantum random energy model (QREM), are reviewed. We show that the free energy of the [Formula: see text]-spin model converges in a joint thermodynamic and [Formula: see text] limit to the free energy of the QREM.

1995 ◽  
Vol 09 (14) ◽  
pp. 877-882 ◽  
Author(s):  
S. ROUHANI ◽  
D. SAAKIAN

The ferromagnetic phase of the random energy model was investigated for all values of the parameters. Finite size corrections to the free energy were calculated and the fine structure of the phase diagram, areas with the same size corrections, in the ferromagnetic phase was found.


2001 ◽  
Vol 15 (01) ◽  
pp. 1-15 ◽  
Author(s):  
T. C. DORLAS ◽  
J. R. WEDAGEDERA

We present a simple proof of the formula for the free energy of the random energy model using a large deviation property which holds almost surely with respect to the randomness. This proof is extended to the case with external magnetic field leading to the solution of a model with higher-order ferromagnetic term. It is shown that this model is useful for Sourlas' application to error-correcting codes as was already pointed out in a recent letter by the authors.


2007 ◽  
Vol 127 (4) ◽  
pp. 841-850
Author(s):  
N. K. Jana ◽  
B. V. Rao

2003 ◽  
Vol 236 (1) ◽  
pp. 1-54 ◽  
Author(s):  
Anton Bovier ◽  
V�ronique Gayrard ◽  
G�rard Ben Arous

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