Irrational mode locking in quasiperiodic systems.
نویسندگان
چکیده
A model for ac-driven systems, based on the Tang-Wiesenfeld-Bak-Coppersmith-Littlewood automaton for an elastic medium, exhibits mode-locked steps with frequencies that are irrational multiples of the drive frequency, when the pinning is spatially quasiperiodic. Detailed numerical evidence is presented for the large-system-size convergence of such a mode-locked step. The irrational mode locking is stable to small thermal noise and weak disorder. Continuous-time models with irrational mode locking and possible experimental realizations are discussed.
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ورودعنوان ژورنال:
- Physical review letters
دوره 98 14 شماره
صفحات -
تاریخ انتشار 2007