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Quantum mechanics, environmental fluctuations and Wigner function

D'Acunto, Maria (2002) Quantum mechanics, environmental fluctuations and Wigner function. Rendiconti del Seminario della Facoltà di Scienze dell'Università di Cagliari, 72 (2). pp. 110-121. ISSN 0370727X


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Quantum mechanics of classically chaotic systems show drastic changes when they are coupled to environment. A kicked harmonic oscillator is linearly coupled to a heat bath via its position. It is found that the effects of the bath is to suppress the quantum effect of ballistic motion shown by the uncoupled kicked oscillator. In the asymptotic time regime ballistic dynamics is destroyed and quantum-classical correspondence is restored. The Wigner distribution picture of the dynamics is adopted.

Item Type:Article
Institution:Università degli Studi di Cagliari
Divisions:Centri > Seminario Scientifico della Facolta' di Scienze MM.FF.NN.
Subjects:Area 02 - Scienze fisiche > FIS/01 Fisica sperimentale
Uncontrolled Keywords:Harmonic oscillator, bath, ballistic motion
ID Code:277
Deposited On:11 Nov 2008 11:18

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