English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

We examine the stability of marginally Anderson localized phase transitionsbetween localized phases to the addition of many-body interactions, focusing inparticular on the spin-glass to paramagnet transition in a disorderedtransverse field Ising model in one dimension. We find evidence for aperturbative instability of localization at finite energy densities onceinteractions are added, i.e. evidence for the relevance of interactions - in arenormalization group sense - to the non-interacting critical point governed byinfinite randomness scaling. We introduce a novel diagnostic, the"susceptibility of entanglement", which allows us to perturbatively probe theeffect of adding interactions on the entanglement properties of eigenstates,and helps us elucidate the resonant processes that can cause thermalization.The susceptibility serves as a much more sensitive probe, and its divergencecan detect the perturbative beginnings of an incipient instability even inregimes and system sizes for which conventional diagnostics point towardslocalization. We expect this new measure to be of independent interest foranalyzing the stability of localization in a variety of different settings.

Perturbative instability towards delocalization at phase transitions between MBL phases