Many-body localized quantum batteries

Davide Rossini, Gian Marcello Andolina, and Marco Polini
Phys. Rev. B 100, 115142 – Published 18 September 2019

Abstract

The collective and quantum behavior of many-body systems may be harnessed to achieve fast charging of energy storage devices, which have been recently dubbed quantum batteries. In this paper, we present an extensive numerical analysis of energy flow in a quantum battery described by a disordered quantum Ising chain Hamiltonian, whose equilibrium phase diagram presents many-body localized (MBL), Anderson localized (AL), and ergodic phases. We demonstrate that (i) the low amount of entanglement of the MBL phase guarantees much better work extraction capabilities, measured by the ergotropy, than the ergodic phase and (ii) interactions suppress temporal energy fluctuations in comparison with those of the noninteracting AL phase. Finally, we show that the statistical distribution of values of the optimal charging time is a clear-cut diagnostic tool of the MBL phase.

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  • Received 10 June 2019
  • Revised 9 September 2019
  • Corrected 14 February 2020

DOI:https://doi.org/10.1103/PhysRevB.100.115142

©2019 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied PhysicsStatistical Physics & ThermodynamicsQuantum Information, Science & Technology

Corrections

14 February 2020

Correction: Incorrect source information appeared in Ref. [51] and has been fixed.

Authors & Affiliations

Davide Rossini1,*, Gian Marcello Andolina2,3, and Marco Polini3

  • 1Dipartimento di Fisica dell'Università di Pisa and INFN, Largo Pontecorvo 3, I-56127 Pisa, Italy
  • 2NEST, Scuola Normale Superiore, I-56126 Pisa, Italy
  • 3Istituto Italiano di Tecnologia, Graphene Labs, Via Morego 30, I-16163 Genova, Italy

  • *davide.rossini@unipi.it

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Issue

Vol. 100, Iss. 11 — 15 September 2019

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