Geometric determination of heteroclinic and unstable periodic orbit classical actions

Abstract

Semiclassical sum rules, such as the Gutzwiller trace formula, depend on the properties of periodic, closed, or homoclinic (heteroclinic) orbits. The interferences embedded in such orbit sums are governed by classical action functions and Maslov indices. For chaotic systems, the relative actions of such orbits can be expressed in terms of phase space areas bounded by segments of stable and unstable manifolds, and Moser invariant curves. This also generates direct relations between periodic orbits and homoclinic (heteroclinic) orbit actions. Simpler, explicit approximate expressions following from the exact relations are given with error estimates. They arise from asymptotic scaling of certain bounded phase space areas. The actions of infinite subsets of periodic orbits are determined by their periods and the locations of the limiting homoclinic points on which they accumulate.

17 pages, 17 figure, expanded version of [Phys. Rev. E 95, 062224 (2017)]

References in corpus (5)

• Semiclassical Foundation of Universality in Quantum Chaos
• Periodic-Orbit Theory of Universality in Quantum Chaos
• Semiclassical form factor for spectral and matrix element fluctuations of multi-dimensional chaotic systems
• Analytical description of the structure of chaos
• Action differences between fixed points and accurate heteroclinic orbits

Cited by in corpus (4)

• Semiclassical roots of universality in many-body quantum chaos
• Exact relations between homoclinic and periodic orbit actions in chaotic systems
• Exact decomposition of homoclinic orbit actions in chaotic systems: Information reduction
• An asymptotic relationship between homoclinic points and periodic orbit stability exponents