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 have studied the dynamic evolution of the collective excitations inBose-Einstein condensates in a deep optical lattice with tunable three-bodyinteractions. Their dynamics is governed by a high order discrete nonlinearSchrodinger equation (DNLSE). The dynamical phase diagram of the system isobtained using the variational method. The dynamical evolution shows veryinteresting features. The discrete breather phase totally disappears in theregime where the three-body interaction completely dominates over the two-bodyinteraction. The soliton phase in this particular regime exists only when thesoliton line approaches the critical line in the phase diagram. When weaktwo-body interactions are reintroduced into this regime, the discrete breathersolutions reappear, but occupies a very small domain in the phase space.Likewise, in this regime, the soliton as well as the discrete breather phasescompletely disappear if the signs of the two-and three-body interactions areopposite. We have analysed the causes of this unusual dynamical evolution ofthe collective excitations of the Bose-Einstein condensate with tunableinteractions. We have also performed direct numerical simulations of thegoverning DNLS equation to show the existence of the discrete soliton solutionas predicted by the variational calculations, and also to check the long termstability of the soliton solution.

the european physical journal. d, atomic, molecular and optical physics/the european physical journal. d, atomic, molecular, optical and plasma physics

Discrete Breather and Soliton-Mode Collective Excitations in  Bose-Einstein Condensates in a Deep Optical Lattice with Tunable Three-body  Interactions