| Periodic-Orbit Theory of Level Correlations (2006) | |||||||||
Abstract | |||||||||
| We present a semiclassical explanation of the so-called Bohigas-Giannoni-Schmit conjecture which asserts universality of spectral fluctuations in chaotic dynamics. We work with a generating function whose semiclassical limit is determined by quadruplets of sets of periodic orbits. The asymptotic expansions of both the non-oscillatory and the oscillatory part of the universal spectral correlator are obtained. Borel summation of the series reproduces the exact correlator of random-matrix theory.. Comment: 4 pages, 1 figure (+ web-only appendix with 2 pages, 1 figure) | |||||||||
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