The role of external single-well potential, spatially varying temperature, spatially varying trap potential and time varying force on the impurity dynamics

被引：1
|
作者：
Birhanu, Tibebe [1 ]
Bassie, Yigermal [2 ]
Abebe, Yoseph [3 ]
机构：
[1] Univ Gondar, Dept Phys, Gondar, Ethiopia
[2] Wolkite Univ, Dept Phys, Wolkite, Ethiopia
[3] Debre Markos Univ, Dept Phys, Debre Markos, Ethiopia
来源：
EUROPEAN PHYSICAL JOURNAL B | 2023年 / 96卷 / 01期
关键词：
STOCHASTIC RESONANCE; BROWNIAN-MOTION; DRIVEN; SYSTEM;
D O I：
10.1140/epjb/s10051-023-00478-2
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
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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页数：7
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