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 Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We uncover the exact athermal eigenstates in the Bose-Hubbard (BH) model witha three-body constraint, motivated by the exact construction of quantummany-body scar (QMBS) states in the $S=1$ $XY$ model. These states aregenerated by applying an $\rm SU(2)$ ladder operator consisting of a linearcombination of two-particle annihilation operators to the fully occupied state.By using the improved Holstein-Primakoff expansion, we clarify that the QMBSstates in the $S=1$ $XY$ model are equivalent to those in the constrained BHmodel with additional correlated hopping terms. We also find that, in thestrong-coupling limit of the constrained BH model, the QMBS state exists as thelowest-energy eigenstate of the effective model in the highest-energy sector.This fact enables us to prepare the QMBS states in a certain adiabatic processand opens up the possibility of observing them in ultracold-atom experiments.

Quantum many-body scars in the Bose-Hubbard model with a three-body constraint