Dynamical many-body localization in an integrable model

Aydin Cem Keser, Sriram Ganeshan, Gil Refael, and Victor Galitski

Phys. Rev. B 94, 085120 – Published 11 August 2016

Abstract

We investigate dynamical many-body localization and delocalization in an integrable system of periodically-kicked, interacting linear rotors. The linear-in-momentum Hamiltonian makes the Floquet evolution operator analytically tractable for arbitrary interactions. One of the hallmarks of this model is that depending on certain parameters, it manifests both localization and delocalization in momentum space. We present a set of “emergent” integrals of motion, which can serve as a fundamental diagnostic of dynamical localization in the interacting case. We also propose an experimental scheme, involving voltage-biased Josephson junctions, to realize such many-body kicked models.

Received 30 June 2015
Revised 18 July 2016

DOI:https://doi.org/10.1103/PhysRevB.94.085120

Physics Subject Headings (PhySH)

Many-body localization

Disordered systems Quantum kicked rotor

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Aydin Cem Keser¹, Sriram Ganeshan^1,2, Gil Refael³, and Victor Galitski^1,2,4

¹Condensed Matter Theory Center, Department of Physics, University of Maryland, College Park, Maryland 20742, USA
²Joint Quantum Institute, University of Maryland, College Park, Maryland 20742, USA
³Institute of Quantum Information and Matter, Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
⁴School of Physics, Monash University, Melbourne, Victoria 3800, Australia

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand

Issue

Vol. 94, Iss. 8 — 15 August 2016

Reuse & Permissions

Access Options

Article Available via CHORUS

Download Accepted Manuscript

Author publication services for translation and copyediting assistance advertisement

Physical Review B

covering condensed matter and materials physics