Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published April 2016 | Published + Submitted
Journal Article Open

Anomalous Floquet-Anderson Insulator as a Nonadiabatic Quantized Charge Pump

Abstract

We show that two-dimensional periodically driven quantum systems with spatial disorder admit a unique topological phase, which we call the anomalous Floquet-Anderson insulator (AFAI). The AFAI is characterized by a quasienergy spectrum featuring chiral edge modes coexisting with a fully localized bulk. Such a spectrum is impossible for a time-independent, local Hamiltonian. These unique characteristics of the AFAI give rise to a new topologically protected nonequilibrium transport phenomenon: quantized, yet nonadiabatic, charge pumping. We identify the topological invariants that distinguish the AFAI from a trivial, fully localized phase, and show that the two phases are separated by a phase transition.

Additional Information

© 2016 The Author(s). Published by the American Physical Society. This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. (Received 5 August 2015; published 6 May 2016). We are grateful to Cosma Fulga, Mykola Maksimenko, and Ady Stern for enlightening discussions. P. T. and N. H. L. acknowledge support from the U.S.-Israel Bi-National Science foundation. N. H. L. acknowledges support from I-Core, the Israeli excellence center Circle of Light and from the People Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme (FP7/2007-2013) under REA Grant Agreement No. 631696. N. H. L. and E. B. acknowledge financial support from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (Grant agreement No. 639172). E. B. was supported by the Minerva foundation, the CIG Marie Curie grant, and the Israel Science foundation. M. S. R. acknowledges support from the Villum Foundation and from the People Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme (FP7/2007-2013) under REA Grant Agreement No. PIIF-GA-2013-627838. G. R. and P. T. are grateful for support from NSF through DMR-1410435, as well as the Institute of Quantum Information and Matter, a NSF Frontier center funded by the Gordon and Betty Moore Foundation, and the Packard Foundation.

Attached Files

Published - PhysRevX.6.021013.pdf

Submitted - 1506.00650v1.pdf

Files

PhysRevX.6.021013.pdf
Files (3.5 MB)
Name Size Download all
md5:a2a465e833908d58d485abfe25fc18bc
1.2 MB Preview Download
md5:4faf8c24c7fac8b99913fde33559dd5b
2.3 MB Preview Download

Additional details

Created:
August 20, 2023
Modified:
October 23, 2023