Adiabatic Tracking of a State: a New Route to Nonequilibrium Physics

Autor: Moliner, M., Schmitteckert, P.
Rok vydání: 2013
Předmět:
Zdroj: Phys. Rev. Lett. 111, 120602 (2013), Editors' Suggestion
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevLett.111.120602
Popis: We present a novel numerical approach to track the response of a quantum system to an external perturbation that is progressively switched-on. The method is applied, within the framework of the density matrix renormalization group technique, to track current-carrying states of interacting fermions in one dimension and in presence of an Aharonov-Bohm magnetic flux. This protocol allows us to access highly excited states. We also discuss the connection with the entanglement entropy of these excited states.
Databáze: arXiv