Quantum monodromy and semi-classical trace formulae

Details Quantum monodromy and semi-classical trace formulae Quantum monodromy and semi-classical trace formulae

2001-08-07

arxiv.org/abs/math/0108052v1

Mathematics

Spectral Theory

37 pages

Scientific paper

Trace formulae provide one of the most elegant descriptions of the classical-quantum correspondence. One side of a formula is given by a trace of a quantum object, typically derived from a quantum Hamiltonian, and the other side is described in terms of closed orbits of the corresponding classical Hamiltonian. In algebraic situations, such as the original Selberg trace formula, the identities are exact, while in general they hold only in semi-classical or high-energy limits. We refer to a recent survey \cite{Ur} for an introduction and references. In this paper we present an intermediate trace formula in which the original trace is expressed in terms of traces of quantum monodromy operators directly related to the classical dynamics. The usual trace formulae follow and in addition this approach allows handling effective Hamiltonians.

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