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Correlation-induced localization

P. A. Nosov, I. M. Khaymovich, and V. E. Kravtsov
Phys. Rev. B 99, 104203 – Published 19 March 2019
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Abstract

A new paradigm of Anderson localization caused by correlations in the long-range hopping along with uncorrelated on-site disorder is considered which requires a more precise formulation of the basic localization-delocalization principles. A new class of random Hamiltonians with translation-invariant hopping integrals is suggested and the localization properties of such models are established both in the coordinate and in the momentum spaces alongside with the corresponding level statistics. Duality of translation-invariant models in the momentum and coordinate space is uncovered and exploited to find a full localization-delocalization phase diagram for such models. The crucial role of the spectral properties of hopping matrix is established and a new matrix inversion trick is suggested to generate a one-parameter family of equivalent localization-delocalization problems. Optimization over the free parameter in such a transformation together with the localization-delocalization principles allows us to establish exact bounds for the localized and ergodic states in long-range hopping models. When applied to the random matrix models with deterministic power-law hopping this transformation allows to confirm localization of states at all values of the exponent in power-law hopping and to prove analytically the symmetry of the exponent in the power-law localized wave functions.

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  • Received 24 October 2018
  • Revised 28 February 2019

DOI:https://doi.org/10.1103/PhysRevB.99.104203

©2019 American Physical Society

Physics Subject Headings (PhySH)

Statistical Physics & ThermodynamicsCondensed Matter, Materials & Applied Physics

Authors & Affiliations

P. A. Nosov1,2,3,*, I. M. Khaymovich3, and V. E. Kravtsov4,5,6

  • 1Department of Physics, St. Petersburg State University, St. Petersburg 198504, Russia
  • 2NRC Kurchatov Institute, Petersburg Nuclear Physics Institute, Gatchina 188300, Russia
  • 3Max-Planck-Institut für Physik komplexer Systeme, Nöthnitzer Straße 38, 01187-Dresden, Germany
  • 4Abdus Salam International Center for Theoretical Physics-Strada Costiera 11, 34151 Trieste, Italy
  • 5L. D. Landau Institute for Theoretical Physics-Chernogolovka, Russia
  • 6Kavli Institute for Theoretical Physics, Kohn Hall, University of California at Santa Barbara, Santa Barbara, California 93106, USA

  • *To whom correspondence should be addressed.

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Issue

Vol. 99, Iss. 10 — 1 March 2019

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