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 inter-chain pair tunnelling dynamics based on an exact two-particlesolution for a two-leg ladder. We show that the Hermitian Hamiltonian shares acommon two-particle eigenstate with a corresponding non-Hermitian HubbardHamiltonian in which the non-Hermiticity arises from an on-site interaction ofimaginary strength. Our results provides that the dynamic processes oftwo-particle collision and across-legs tunnelling are well described by theeffective non-Hermitian Hubbard Hamiltonian based on the eigenstateequivalence. We also find that any common eigenstate is always associated withthe emergence of spectral singularity in the non-Hermitian Hubbard model. Thisresult is valid for both Bose and Fermi systems and provides a clear physicalimplication of the non-Hermitian Hubbard model.

Non-Hermitian description of the dynamics of inter-chain pair tunnelling