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 study the ergodic and non-ergodic behaviors of a cleanJaynes-Cummings-Hubbard chain for different parameters based on the averagelevel spacings and the generalized fractal dimensions of eigenstates by usingexact diagonalization. It can be found that a transition from ergodicity tonon-ergodicity phases happens when the atom-photon detuning is large, and thenon-ergodic phases maybe exist in the thermodynamic limit. We also find thatthe non-ergodic phase violates the eigenstate thermalization hypothesis.Finally, we study the many-body multifractality of the ground state and findthat the derivative of the generalized fractal dimensions can determine thecritical point of the Superfluid-Mott-insulation phase transition in a smallrange of parameters under different boundary conditions and there is noergodicity for the ground state.

The ergodic and non-ergodic phases in one dimensional clean Jaynes-Cummings-Hubbard system