Tailored jump operators for purely dissipative quantum magnetism

verfasst von: Hendrik Weimer
Abstract: I propose an architecture for the realization of dissipative quantum many-body spin models. The dissipative processes are mediated by interactions with auxiliary particles and lead to a widely tunable class of correlated quantum jump operators. These findings enable the investigation of purely dissipative spin models, where coherent dynamics is entirely absent. I provide a detailed review of a recently introduced variational method to analyze such dissipative quantum many-body systems, and I discuss a specific example in terms of a purely dissipative Heisenberg model, for which I find an additional disordered phase that is not present in the corresponding ground state phase diagram.
Organisationseinheit(en): Institut für Theoretische Physik
SFB 1227: Designte Quantenzustände der Materie (DQ-mat)
Typ: Artikel
Journal: Journal of Physics B: Atomic, Molecular and Optical Physics
Band: 50
ISSN: 0953-4075
Publikationsdatum: 22.12.2016
Publikationsstatus: Veröffentlicht
Peer-reviewed: Ja
ASJC Scopus Sachgebiete: Atom- und Molekularphysik sowie Optik, Physik der kondensierten Materie
Elektronische Version(en): https://doi.org/10.1088/1361-6455/50/2/024001 (Zugang: Unbekannt)