Loschmidt Echo in a System of Interacting Electrons
Journal Article
·
· Physical Review Letters
- Institut de Physique et Chimie des Materiaux de Strasbourg, UMR 7504 ULP-CNRS, 23 Rue du Loess, BP 43, F-67034 Strasbourg Cedex 2 (France)
We study the Loschmidt echo for a system of electrons interacting through mean-field Coulomb forces. The electron gas is modeled by a self-consistent set of hydrodynamic equations. It is observed that the quantum fidelity drops abruptly after a time that is proportional to the logarithm of the perturbation amplitude. The fidelity drop is related to the breakdown of the symmetry properties of the wave function.
- OSTI ID:
- 20861090
- Journal Information:
- Physical Review Letters, Vol. 97, Issue 19; Other Information: DOI: 10.1103/PhysRevLett.97.190404; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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