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cond-mat.dis-nn2008★ 1 cited
Quantum spherical spin-glass with random short-range interactions
Pedro Castro Menezes, Alba Theumann
In the present paper we analyze the critical properties of a quantum spherical spin glass model with short range, random interactions. Since the model allows for rigorous detailed…
cond-mat.dis-nn2007
Quantum Spherical Spin Glass.Supersymmetry and Annealing
Pedro Castro Menezes, Alba Theumann
We show that the effective action of the quantum spherical spin glass is invariant under a generalized form of the Becchi-Rouet-Stora-Tyutin(BRST) supersymmetry. The Ward identitie…
cond-mat.dis-nn2005
Replica symmetry breaking in the transverse-field Ising spin-glass model: Two frmionic representations
Eduardo M. M. Santos, Alba Theumann
We analyze the infinite range Ising spin-glass in a transverse-field below the critical temperature by a one step replica symmetry theory(1S-RSB). The set of n replicas is divided…