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 present a scheme for creating macroscopic superpositions of the directionof superfluid flow around a loop. Using the Bose-Hubbard model we study anarray of Bose-Einstein condensates trapped in optical potentials and coupled toone another to form a ring. By rotating the ring so that each particle acquireson average half a quantum of superfluid flow, it is possible to create amultiparticle superposition of all the particles rotating and all the particlesstationary. Under certain conditions it is possible to scale up the number ofparticles to form a macroscopic superposition. The simplicity of the model hasallowed us to study macroscopic superpositions at an atomic level for differentvariables. Here we concentrate on the tunnelling strength between thepotentials. Further investigation remains important, because it could lead usto making an ultra-precise quantum-limited gyroscope.Comment: 5 pages, 4 figure

Macroscopic superpositions of superfluid flows