Quantum Phase Transitions in Dissipative Tunnel Junctions
Scott Drewes, Daniel P. Arovas, and Scot Renn
TL;DR
This paper investigates a quantum phase transition in a dissipative tunnel junction model, revealing a boundary between insulating and conducting phases through various analytical and numerical techniques.
Contribution
It introduces a comprehensive analysis of the Ueda-Guinea model, highlighting the quantum phase transition and employing multiple methods for its investigation.
Findings
Identification of a quantum phase transition boundary
Analysis of the transition using large-N techniques
Confirmation of results via Monte Carlo simulations
Abstract
The Ueda-Guinea model of a dissipative tunnel junction is investigated. This model accounts for final state effects associated with single-electron tunneling. A quantum phase transition emerges, marking a boundary between insulating (Coulomb blockade) and conducting phases. The system is analyzed by large-N techniques, self-consistent harmonic approximation, and Monte Carlo methods.
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