arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1005.4207quant-phcond-mat.mes-hallnlin.CDnucl-th
收藏

弱混沌系统的量子响应

Quantum response of weakly chaotic systems

Alexander Stotland, Louis M. Pecora, Doron Cohen

摘要:

混沌系统,具有一个小的李雅普诺夫指数,不服从常见的随机矩阵理论的预测在一个广泛的“弱量子混沌”制度。这导致了一个新的预测的冷原子在光学台球与振动壁的加热速率。驱动系统的哈密顿矩阵看起来不像高斯系综,而是非常稀疏。这种稀疏性可以通过参数$s$和$g$来表征,参数$s$和$g$分别反映大元素的百分比及其连接性。对于$g$,我们使用与系统的半线性响应特性有直接关系的电阻网络计算。

英文摘要:

Chaotic systems, that have a small Lyapunov exponent, do not obey the common random matrix theory predictions within a wide "weak quantum chaos" regime. This leads to a novel prediction for the rate of heating for cold atoms in optical billiards with vibrating walls. The Hamiltonian matrix of the driven system does not look like one from a Gaussian ensemble, but rather it is very sparse. This sparsity can be characterized by parameters $s$ and $g$ that reflect the percentage of large elements, and their connectivity respectively. For $g$ we use a resistor network calculation that has direct relation to the semi-linear response characteristics of the system.

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。

↑