Theory of the stationary macroscopic quantum behavior of inductively coupled superconducting weak links

Journal Article · Thu Apr 01 00:00:00 EST 1982 · J. Low Temp. Phys.; (United States)

DOI:https://doi.org/10.1007/BF00682017· OSTI ID:5492421

Brunk, G; Luebbig, H

A theory of the stationary response of a flux-controlled superconducting weak link is presented in the framework of reversible thermodynamics. The superconducting loop containing the weak line (SQUID): considered as a ''black box'': can be characterized by a nonlinear inductance L/sub s/ which uniquely describes the constitutive properties of the macroscopic quantum system. The influence of the temperature-dependent (nonsinusoidal) current-phase relation (CPR) on L/sub s/ and on the stability of the SQUID when operated in th nonhysteretic mode is analyzed taking into account the full nonlinearity of the CPR. The model presented enables a rigorous circuit analysis, even in the case of a nonlinear flux transformer.

• Research Organization: Technische Universitaet Berlin, Berlin, West Germany
• OSTI ID: 5492421
• Journal Information: J. Low Temp. Phys.; (United States), Vol. 47:1
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
SQUID DEVICES
COUPLING
THERMODYNAMIC PROPERTIES
EQUILIBRIUM
FREE ENERGY
NONLINEAR PROBLEMS
RESPONSE FUNCTIONS
STABILITY
SUPERCONDUCTING JUNCTIONS
ELECTRONIC EQUIPMENT
ENERGY
EQUIPMENT
FLUXMETERS
FUNCTIONS
JUNCTIONS
MEASURING INSTRUMENTS
MICROWAVE EQUIPMENT
PHYSICAL PROPERTIES
SUPERCONDUCTING DEVICES
656102* - Solid State Physics- Superconductivity- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena- (-1987)