Josephson-junction ladders and quantum fluctuations

Journal Article · Sat Mar 01 04:00:00 EST 1986 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.33.3125· OSTI ID:6094010

Kardar, M

A ladder of Josephson junctions provides a realization of the discrete sine-Gordon chain. The spring constant and incommensurability can be varied by the supercurrent and the magnetic field. As the magnetic field is increased there is a transition to a vortex state. Due to charging effects (quantum fluctuations) the ladder becomes normal in the vicinity of this transition.

• Research Organization: Department of Physics, Harvard University, Cambridge, Massachusetts 02138
• OSTI ID: 6094010
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 33:5; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

656101* -- Solid State Physics-- Superconductivity-- General Theory-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COMPOSITE MODELS
COUPLING
EQUATIONS
EXTENDED PARTICLE MODEL
FIELD EQUATIONS
FLUCTUATIONS
JOSEPHSON JUNCTIONS
JUNCTIONS
MATHEMATICAL MODELS
NETWORK ANALYSIS
PARTICLE MODELS
PHASE STABILITY
QUARK MODEL
SIMULATION
SINE-GORDON EQUATION
STABILITY
STRING MODELS
SUPERCONDUCTING JUNCTIONS
VARIATIONS