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 solve...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.展开更多
基金Thiswork has been supported by the GREFI-MEFI(Groupement De Recherche Europ´een Franco-Italien)and the ANR QUATRAIN(Quantum transport in nanostructures).The authors would like to thank the Laboratoire LATP of the University of Provence and the University of Milano Bicocca for the support and the kind hospitality.
文摘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.
