We present a many body approach for nonequilibrium behavior and self-generated glassiness in strongly correlated quantum systems. It combines the dynamical mean-field theory of equilibrium systems with the replica theory for classical glasses without quenched disorder. We apply this approach to study a quantized version of the Brazovskii model and find a self-generated quantum glass that remains in a quantum mechanically mixed state as T-->0. This quantum glass is formed by a large number of competing states spread over an energy region which is determined within our theory.
机构:
Univ Roma La Sapienza, Dipartimento Fis, INFN, INFM CNR SMC, I-00185 Rome, ItalyUniv Roma La Sapienza, Dipartimento Fis, INFN, INFM CNR SMC, I-00185 Rome, Italy
Parisi, Giorgio
Zamponi, Francesco
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Ecole Normale Super, Phys Theor Lab, F-75231 Paris 05, FranceUniv Roma La Sapienza, Dipartimento Fis, INFN, INFM CNR SMC, I-00185 Rome, Italy