Floquet quantum criticality
Abstract
Periodically driven “Floquet” systems are nonequilibrium systems whose time translation symmetry can give rise to a rich dynamical phase structure. In the presence of quenched disorder, they can avoid thermalizing to a bland infinite temperature state through a phenomenon known as many-body localization (MBL). The ability of these driven MBL phases to host phenomena forbidden in equilibrium, such as “time crystallinity,” has gained widespread interest in recent years. In this work, we consider the question of the criticality that emerges at the transitions between distinct Floquet MBL phases. By providing a universally applicable picture and applying it to a prototypical driven system, the driven Ising chain, we identify critical points and give an understanding of Floquet criticality in general.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Aug 29, 2018
- Source ID
- 10.1073/pnas.1805796115
Entities
People
- Michael Kolodrubetz
- Romain Vasseur
- S A Parameswaran
- William Berdanier
Organizations
- Hellman Foundation
- Lawrence Berkeley National Laboratory
- National Science Foundation
- Office of Basic Energy Sciences
- United States Department of Defense
- University of California, Santa Barbara
- University of Massachusetts
- University of Massachusetts Amherst
- University of Oxford
- University of Texas at Dallas