Discrete breathers in dc-biased Josephson-junction arrays

Article

关键词: INTRINSIC LOCALIZED MODES;    DYNAMICS;    OSCILLATORS;    STABILITY;    NETWORKS;    LADDER;   

DOI  :  10.1103/PhysRevB.59.13604

来源: SCIE

【 摘 要 】

We propose a method to excite and detect a rotor localized mode (rotobreather) in a Josephson-junction array biased by de currents. In our numerical studies of the dynamics we have used experimentally realizable parameters and included self-inductances. We have uncovered two families of rotobreathers. Both types are stable under thermal fluctuations and exist for a broad range of array parameters and sizes including arrays as small as a single plaquette. We suggest a single Josephson-junction plaquette as an ideal system to experimentally investigate these solutions. [S0163-1829(99)02821-0].

【 授权许可】

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