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cond-mat.mes-hall1998
The Quantum Dissipative Villain Model
G. Falci, G. Giaquinta, U. Weiss
We introduce the Quantum Dissipative Villain (QDV) model as a prototype model to study tunneling in dissipative quantum mechanics. Dissipation is provided by a coupled linear envir…
cond-mat.mes-hall1998
Duality in the Quantum Dissipative Villain Model and application to Mesoscopic Josephson Junction Circuits
G. Falci, U. Weiss
We study exact self duality in the model of a Brownian particle in a washboard (WB) potential which describes a Josephson Junction (JJ) coupled to an environment, for arbitrary tem…
cond-mat.supr-con1998★ 139 cited
A small superconducting grain in the canonical ensemble
A. Mastellone, G. Falci, Rosario Fazio
By means of the Lanczos method we analyze superconducting correlations in ultrasmall grains at fixed particle number. We compute the ground state properties and the excitation gap…