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Quantum Resonances of Kicked Rotor and SU(q) group

V. V. Sokolov, O. V. Zhirov, D. Alonso, G. Casati

chao-dynarXiv:chao-dyn/9907033

Abstract

The quantum kicked rotor (QKR) map is embedded into a continuous unitary transformation generated by a time-independent quasi-Hamiltonian. In some vicinity of a quantum resonance of order q, we relate the problem to the regular motion along a circle in a (q2-1)-component inhomogeneous "magnetic" field of a quantum particle with q intrinsic degrees of freedom described by the SU(q) group. This motion is in parallel with the classical phase oscillations near a non-linear resonance.

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