https://doi.org/10.1140/epjb/s10051-023-00478-2
Regular Article - Statistical and Nonlinear Physics
The role of external single-well potential, spatially varying temperature, spatially varying trap potential and time varying force on the impurity dynamics
1
Department of Physics, University of Gondar, Gondar, Ethiopia
2
Department of Physics, Wolkite University, Wolkite, Ethiopia
3
Department of Physics, Debre Markos University, Debre Markos, Ethiopia
Received:
3
November
2022
Accepted:
4
January
2023
Published online:
22
January
2023
In this paper, we study the role of external parabolic potential, spatially varying temperature, spatially varying trap potential, and time-varying weak signal on the impurities walking from one lattice site to another lattice site. Both temperature and trap potential effects force the system to undergo a phase transition from single well potential to triple well effective potential. In addition, the role of time-varying signal rocks the triple well effective potential and helps the impurities easily surmount the potential barrier. As a result, we study the characterization of stochastic resonance both analytically and numerically.
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© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
