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arXiv 1507.01746cond-mat.stat-mechmath-phmath.MP
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能量景观中Lévy运动定态分布衰减率的跃迁

Transition in the decay rates of stationary distributions of Lévy motion in an energy landscape

Kamil Kaleta, József Lőrinczi

摘要:

具有Lévy统计量的随机变量的时间演化具有发展跳跃的能力,表现出与连续波动情况非常不同的行为。这种模式出现在越来越广泛的例子中,包括随机激光,非高斯动力学或觅食策略。然而,到目前为止,人们对环境的惩罚或强化作用还很少探讨。我们报告了一个新的现象,表现为一个定性的转变,在空间衰减行为的静态测量的跳跃过程下的外部潜力,发生在一个组合的变化的过程中的特性和最低的本征值所产生的潜在的影响。这也提供了洞察的基本问题是什么空间衰减的基态的机制。

英文摘要:

The time evolution of random variables with Lévy statistics has the ability to develop jumps, displaying very different behaviors from continuously fluctuating cases. Such patterns appear in an ever broadening range of examples including random lasers, non-Gaussian kinetics or foraging strategies. The penalizing or reinforcing effect of the environment, however, has been little explored so far. We report a new phenomenon which manifests as a qualitative transition in the spatial decay behavior of the stationary measure of a jump process under an external potential, occurring on a combined change in the characteristics of the process and the lowest eigenvalue resulting from the effect of the potential. This also provides insight into the fundamental question of what is the mechanism of the spatial decay of a ground state.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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