Decoherence and Loschmidt echoes: quantum against classical
AUTOR(ES)
Prosen, Tomaz, Znidaric, Marko
FONTE
Brazilian Journal of Physics
DATA DE PUBLICAÇÃO
2005-06
RESUMO
Some recent theoretical results on the stability of quantum dynamics against perturbations of the Hamiltonian - the so-called Loschmidt echoes and their relation to various decoherence measures are reviewed. We show that the representation of Loschmidt echoes in terms of the Wigner function can explain some seemingly paradoxical behavior of the quantum-classical correspondence.
