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Periodic orbit theory and the Generalized Baker Transformation.

机译:周期轨道理论与广义贝克变换。

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摘要

The main focus of this dissertation was the Generalized Baker Map, a uniformly hyperbolic chaotic map for which the quantum analog is known. From the Gutzwiller Trace Formula, we know that the energy spectrum of a quantum system whose classical counterpart is chaotic is given, in the limit h → 0, by a sum over pairs of periodic orbits with small action differences. We sought out such pairs of orbits in the Generalized Baker Map. Using a symbolic dynamics exhibited by the Generalized Baker Map, we derived an expression for the classical action. We were then able to use the symbolic dynamics to write the mechanics of the Generalized Baker Map in terms of a collection of mixed generating functions. These generating functions led us to an expression for the classical action of periodic orbits which we could relate, relatively simply, to the ''geometry'' of the symbol sequences. Using the classical action we derived, we found the pairs of periodic orbits (i.e., pairs of symbol sequences) of the Generalized Baker Map which have small action differences between them. By graphically representing these symbol sequence pairs, we were able to match them with the current results for continuous systems. It is speculated that all maps allowing a symbolic dynamics will give the same results.
机译:本文的重点是广义贝克图,它是量子双态已知的均匀双曲混沌图。从古兹维勒迹线公式,我们知道,经典对等体是混沌的量子系统的能谱在h→0的范围内,是由作用力差很小的成对周期轨道上的总和给出的。我们在广义贝克地图中找出了这些成对的轨道。利用广义贝克图展示的符号动力学,我们得出了经典动作的表达式。然后,我们可以使用符号动力学来根据混合生成函数的集合来编写广义贝克图的机制。这些生成函数使我们得出了周期轨道经典作用的表达式,我们可以相对简单地将其与符号序列的“几何形状”联系起来。使用我们得出的经典作用,我们发现了广义贝克图的周期轨道对(即符号序列对)之间的作用差异很小。通过以图形表示这些符号序列对,我们可以将它们与连续系统的当前结果进行匹配。据推测,所有允许符号动力学的地图都会给出相同的结果。

著录项

  • 作者

    Luckwald, Eric J.;

  • 作者单位

    University of California, Santa Barbara.;

  • 授予单位 University of California, Santa Barbara.;
  • 学科 Physics Theory.
  • 学位 Ph.D.
  • 年度 2007
  • 页码 86 p.
  • 总页数 86
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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