积极的运动可以有利于在热环境中重置目标搜索
P S Pal1, Jong-Min Park2,3, Arnab Pal4,5
1School of Physics, <a href="https://ror.org/041hz9568">Korea Institute for Advanced Study</a>, Seoul 02455, Republic of Korea.
Physical review. E
|December 18, 2024
概括
随机重置增强了对跑动粒子的目标搜索. 热噪声和速度逆转可以进一步减少搜索时间,在某些条件下超过简单的布朗运动.
科学领域:
- 物理 物理学 物理
- 统计力学 统计力学
- 生物物理学的生物物理.
背景情况:
- 随机重置是一种在物理和生物系统中使用的搜索策略.
- 搜索效率取决于环境噪音 (热与活性).
- 不同类型的噪音对重置搜索的综合影响尚不清楚.
研究的目的:
- 为了研究随机重置对热浴中自行运行和的粒子的影响.
- 在重置搜索过程中探索主动和热波动之间的相互作用.
- 分析如何重置与或没有速度逆转影响搜索时间.
主要方法:
- 模拟一个受到随机重置的跑动粒子.
- 使用标准更新技术计算平均搜索时间.
- 分析活性 (电报) 和热噪声的联合影响.
主要成果:
- 在特定条件下 (高自行推进,低热噪声),主动搜索可能比布朗搜索更有效.
- 热噪声可以令人惊地减少跑动粒子的平均首次穿越时间.
- 在重置过程中逆转粒子速度进一步减少了整体搜索时间.
结论:
- 随机重置是积极搜索过程的可行策略.
- 主动推进,热噪声和重置之间的相互作用是复杂的,可以提高搜索效率.
- 在重置期间的速度逆转为目标采集提供了潜在的优化.
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