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 Plus annual

Presents the access of premium content as premium feature

Premium Content

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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The eigenstate thermalization hypothesis (ETH) is a successful theory thatestablishes the criteria for ergodicity and thermalization in isolated quantummany-body systems. In this work, we investigate the thermalization propertiesof spin-$ 1/2 $ XXZ chain with linearly-inhomogeneous interactions. Wedemonstrate that introduction of the inhomogeneous interactions leads to anonset of quantum chaos and thermalization, which, however, becomes inhibitedfor sufficiently strong inhomogeneity. To exhibit ETH, and to display itsbreakdown upon varying the strength of interactions, we probe statistics ofenergy levels and properties of matrix elements of local observables ineigenstates of the inhomogeneous XXZ spin chain. Moreover, we investigate thedynamics of the entanglement entropy and the survival probability which furtherevidence the thermalization and its breakdown in the considered model. Weoutline a way to experimentally realize the XXZ chain withlinearly-inhomogeneous interactions in systems of ultracold atoms. Our resultshighlight a mechanism of emergence of ETH due to insertion of inhomogeneitiesin an otherwise integrable system and illustrate the arrest of quantum dynamicsin presence of strong interactions.

Eigenstate Thermalization and its breakdown in Quantum Spin Chains with Inhomogeneous Interactions