Multicritical behavior in dissipative Ising models

verfasst von

Vincent R. Overbeck, Mohammad F. Maghrebi, Alexey V. Gorshkov, Hendrik Weimer

Abstract

We analyze theoretically the many-body dynamics of a dissipative Ising model in a transverse field using a variational approach. We find that the steady-state phase diagram is substantially modified compared to its equilibrium counterpart, including the appearance of a multicritical point belonging to a different universality class. Building on our variational analysis, we establish a field-theoretical treatment corresponding to a dissipative variant of a Ginzburg-Landau theory, which allows us to compute the upper critical dimension of the system. Finally, we present a possible experimental realization of the dissipative Ising model using ultracold Rydberg gases.

Organisationseinheit(en)

Institut für Theoretische Physik
SFB 1227: Designte Quantenzustände der Materie (DQ-mat)

Externe Organisation(en)

University of Maryland

Typ

Artikel

Journal

Physical Review A

Band

95

ISSN

2469-9926

Publikationsdatum

26.04.2017

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Atom- und Molekularphysik sowie Optik

Elektronische Version(en)

https://doi.org/10.1103/physreva.95.042133 (Zugang: Offen)