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Time Dependent Entropy and Decoherence in a Modified Quantum Damped Harmonic Oscillator

¹ Laboratoire de Mécanique et de Modélisation des Systèmes Physiques (L2MSP), Faculté des Sciences, Université de Dschang, Dschang, Cameroon
² Laboratoire de Mécanique et de Modélisation des Systèmes Physiques (L2MSP), Faculté des Sciences, Université de Dschang, Dschang, Cameroon
³ Laboratory of Mesoscopy and Multilayers Structures, Faculty of Science, University of Dschang, Dschang, Cameroon
⁴ Laboratory of Mesoscopy and Multilayers Structures, Faculty of Science, University of Dschang, Dschang, Cameroon

Journal of Quantum Information Science·Volume 04 (2014)·Pages 214–226·Published 18 December 2014·DOI10.4236/jqis.2014.44020

Abstract

The time dependence of probability and Shannon entropy of a modified damped harmonic oscillator is studied by using single and double Gaussian wave functions through the Feynman path method. We establish that the damped coefficient as well as the system frequency and the distance separating two consecutive waves of the initial double Gaussian function influences the coherence of the system and can be used to control its decoherence.

KeywordsModified Damped Harmonic OscillatorFeynman Path IntegralDecoherenceShannon EntropyDistribution Probability

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Time Dependent Entropy and Decoherence in a Modified Quantum Damped Harmonic Oscillator

Abstract

References (44)