A Numerical Study of Quantum Decoherence

Publisher: Cambridge University Press

E-ISSN: 1991-7120|12|1|85-108

ISSN: 1815-2406

Source: Communications in Computational Physics, Vol.12, Iss.1, 2012-07, pp. : 85-108

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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 Schrödinger 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.