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- W35481640 abstract "We prove that lattice quantum systems may undergo a first-order quantum phase transition through a general mechanism which consists in an infinite dilution of the states associated to (or, more in general, near to) the lowest energy levels. The equation giving the critical point is derived and discussed at several degrees of generalizations: given an infinitesimal portion of the Fock space, i.e., the cavity space, and its complement, i.e., the reservoir space, in the thermodynamic limit, a first-order quantum phase transition takes place when the cavity and reservoir energies are equal. A comparison with some particular exact solvable cases as, e.g., the Quantum Rem model, is made." @default.
- W35481640 created "2016-06-24" @default.
- W35481640 creator A5006932085 @default.
- W35481640 date "2009-05-27" @default.
- W35481640 modified "2023-10-16" @default.
- W35481640 title "Quantum Phase Transitions induced by Infinite Dilution in the Fock Space: a General Mechanism. Proof and discussion" @default.
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