Published April 22, 2005 | Version v1
Journal article Metadata-only

Dissipation-driven phase transition in two-dimensional Josephson arrays

Creators

  • 1. Kavli Institute for Theoretical Physics, University of California, Santa Barbara, California 93106 (United States)
  • 2. Valuation Risk Group, Credit Suisse First Boston (Europe) Ltd., One Cabot Square, London E14 4QJ (United Kingdom)
  • 3. Istituto Nazionale per la Fisica della Materia - U.d.R. Firenze - via G. Sansone 1, I-50019 Sesto Fiorentino, FI (Italy)
  • 4. Dipartimento di Fisica dell'Universita di Firenze - via G. Sansone 1, I-50019 Sesto Fiorentino, FI (Italy)
  • 5. MATIS-INFM and DMFCI, Universita di Catania, viale A. Doria 6, I-95125 Catania (Italy)
  • 6. Istituto Nazionale di Fisica Nucleare, Sezione di Firenze, via G. Sansone 1, I-50019 Sesto Fiorentino, FI (Italy)
  • 7. Istituto dei Sistemi Complessi del Consiglio Nazionale delle Ricerche, Sezione di Firenze, via Madonna del Piano, I-50019 Sesto Fiorentino, FI (Italy)

Description

We analyze the interplay of dissipative and quantum effects in the proximity of a quantum phase transition. The prototypical system is a resistively shunted two-dimensional Josephson junction array, studied by means of an advanced Fourier path-integral Monte Carlo algorithm. The reentrant superconducting-to-normal phase transition driven by quantum fluctuations, recently discovered in the limit of infinite shunt resistance, persists for moderate dissipation strength but disappears in the limit of small resistance. For large quantum coupling our numerical results show that, beyond a critical dissipation strength, the superconducting phase is always stabilized at sufficiently low temperature. Our phase diagram explains recent experimental findings

Additional details

Identifiers

DOI
10.1103/PhysRevLett.94.157001;
arXiv
arXiv:cond-mat/0410437v2;

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
94
Journal Issue
15
Journal Page Range
p. 157001-157001.4
ISSN
0031-9007
CODEN
PRLTAO

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
36069228
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; S36: MATERIALS SCIENCE;
Descriptors DEI
ALGORITHMS; JOSEPHSON EFFECT; JOSEPHSON JUNCTIONS; MONTE CARLO METHOD; PATH INTEGRALS; PHASE DIAGRAMS; PHASE TRANSFORMATIONS; TWO-DIMENSIONAL CALCULATIONS
Descriptors DEC
CALCULATION METHODS; DIAGRAMS; INFORMATION; INTEGRALS; MATHEMATICAL LOGIC; SUPERCONDUCTING JUNCTIONS

Optional Information

Notes
(c) 2005 The American Physical Society