Quantum Signature of Classical Chaos in a Lipkin Model: Sensitivity of Eigenfunctions to Parameter Perturbations
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Abstract
In this paper, we have studied the properties of eigenfunctions in a three-level Lipkin model whose classical counterpart can exhibit classical chaos. In the regime of classical chaotic motions, sensitivity of eigenfunctions to parameter perturbation is exposed, which may be taken as a quantum signature of classical chaos. -