Multicritical behavior in dissipative Ising models
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.
Publication Details
- Authors
- Publication Type
- Journal Article
- Year of Publication
- 2017
- Journal
- Physical Review A
- Volume
- 95
- Date Published
- 04/2017