Quasiperiodic many-body localization transition in dimension d>1

Utkarsh Agrawal, Romain Vasseur, Sarang Gopalakrishnan

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


The nature of the many-body localization (MBL) transition and even the existence of the MBL phase in random many-body quantum systems have been actively debated in recent years. In spatial dimension d>1, there is some consensus that the MBL phase is unstable to rare thermal inclusions that can lead to an avalanche that thermalizes the whole system. In this note, we explore the possibility of MBL in quasiperiodic systems in dimension d>1. We argue that (i) the MBL phase is stable against "avalanches"at strong enough quasiperiodic modulations for d=2, and (ii) the possibility of an avalanche strongly constrains the finite-size scaling behavior of the MBL transition. We present a suggestive construction that MBL is unstable for d≥3.

Original languageEnglish (US)
Article number094206
JournalPhysical Review B
Issue number9
StatePublished - Sep 1 2022
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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