Asymmetric confinement in a doubly modulated bistable device |
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| Institution: | 1. Dipartimento di Fisica, and Istituto Nazionale di Fisica Nucleare, Università di Perugia, I-06123 Perugia, Italy;2. Dipartimento di Fisica, Università di Camerino, I-62032 Camerino, Italy;1. Lehrstuhl für Theoretische Physik I, Institut für Physik, Universität Augsburg, Universitätsstr. 1, 86135 Augsburg, Germany;2. Dpto. Física Atómica Molecular y Nuclear, Facultad de Física, Universidad de Sevilla, Av. Reina Mercedes s/n, 41012 Sevilla, Spain;1. Division of Materials Science and Engineering, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan;2. Faculty of Mechanical Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan;3. Department of Materials Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan;1. Information Science and Engineering College, Dalian Polytechnic University, Dalian 116034, China;2. Institution of Theoretical Physics, School of Physics, Northeast Normal University, Changchun 130024, China;1. General Eduction, National Institute of Technology, Kagawa College, 551 Kohda, Takuma-cho, Mitoyo, Kagawa 769-1192, Japan;2. Okayama Institute for Quantum Physics, Furugyocho 1-7-36, Naka-ku, Okayama 703-8278, Japan |
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| Abstract: | A Brownian particle hopping in a symmetric double-well potential may be statistically confined into a single well by the simultaneous action of two periodic input signals, one tilting the minima, the other one modulating the barrier height. Such a basic mechanism for asymmetric confinement can be conveniently maximized by tuning the input signal parameters (frequencies, phase lag, amplitudes), thus leading to a resonant localization of the particle in a target potential well. |
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