منابع مشابه
The Replica Approach: Spin and Structural Glasses
A spin glass is a type of magnetic ordering that can emerge, most transparently, when a system is both frustrated and has quenched disorder. This paper will review some of the basics of such systems, and then touch on some of the experimental results that served as a guide for the theory. In exploring the theory it will focus on one particular framework, the replica approach, that has been used...
متن کاملModulated replica symmetry breaking schemes for antiferrimagnetic spin glasses
We define modulated replica symmetry breaking (RSB) schemes which combine treeand wavelike structures. A modulated scheme and unmodulated RSB are evaluated at 1-step level for a semiconductor model with antiferromagnetic Korenblit-Shender interaction. By comparison of the free energies we find evidence that a T = 0 phase transition in the ferrimagnetic phase leads to a transition between the di...
متن کاملGeneric replica symmetric field-theory for short range Ising spin glasses
Symmetry considerations and a direct, Hubbard-Stratonovich type, derivation are used to construct a replica field-theory relevant to the study of the spin glass transition of short range models in a magnetic field. A mean-field treatment reveals that two different types of transitions exist, whenever the replica number n is kept larger than zero. The Sherrington-Kirkpatrick critical point in ze...
متن کاملDynamical replica theory for disordered spin systems.
We present a method to solve the dynamics of disordered spin systems on finite time scales. It involves a closed driven diffusion equation for the joint spin-field distribution, with time-dependent coefficients described by a dynamical replica theory which, in the case of detailed balance, incorporates equilibrium replica theory as a stationary state. The theory is exact in various limits. We a...
متن کاملReplica field theory for anharmonic sound attenuation in glasses
Article history: Received 12 April 2010 Received in revised form 14 May 2010 Available online xxxx
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ژورنال
عنوان ژورنال: Journal of Statistical Mechanics: Theory and Experiment
سال: 2008
ISSN: 1742-5468
DOI: 10.1088/1742-5468/2008/04/p04006