Archivio Istituzionale della RicercaThe present paper provides a numerical investigation of the decoherence effect induced on a quantum heavy particle by the scattering with a light one. The time dependent two-particle Schr ¨odinger equation is solved by means of a time-splitting method. The damping undergone by the non-diagonal terms of the heavy particle density matrix is estimated numerically, as well as the error in the Joos-Zeh approximation formula.
A Numerical Study of Quantum Decoherence / Adami, Riccardo; Claudia, Negluescu. - In: COMMUNICATIONS IN COMPUTATIONAL PHYSICS. - ISSN 1815-2406. - 12:(2012), pp. 85-108. [10.4208/cicp.011010.010611a]
A Numerical Study of Quantum Decoherence
ADAMI, RICCARDO;
2012
Abstract
The present paper provides a numerical investigation of the decoherence effect induced on a quantum heavy particle by the scattering with a light one. The time dependent two-particle Schr ¨odinger equation is solved by means of a time-splitting method. The damping undergone by the non-diagonal terms of the heavy particle density matrix is estimated numerically, as well as the error in the Joos-Zeh approximation formula.
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https://hdl.handle.net/11583/2573168
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