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- Title
'Bulk-SQUID effect' in a complex system as a consequence of its nonergodicity.
- Authors
Ginzburg, S.; Nakin, A.; Savitskaya, N.
- Abstract
The dynamics of the phases in a discrete superconductor model has been studied both theoretically and in computer simulation for the case of the passage of a direct current higher than the total critical current of junctions. It has been shown that a bulk-SQUID phenomenon appears in the system in this case and the system is nonergodic. This means that the dynamics of the system certainly depends on the initial conditions and dynamical attractors are limit cycles each having an attracting domain in the configuration space of initial conditions. A mathematical technique for recovering ergodicity in the system under investigation has been proposed. It has also been demonstrated that the bulk-SQUID phenomenon is not observed when the ergodicity is recovered in the system. It has been shown that the results are quite general and describe the behavior of a class of dynamical systems.
- Subjects
SUPERCONDUCTORS; DYNAMICS; COMPUTER simulation; DIRECT currents; CERAMICS; JOSEPHSON junctions; SYNCHRONIZATION
- Publication
JETP Letters, 2011, Vol 92, Issue 9, p580
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/S0021364010210034