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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Engineering pairs of massive particles that are simultaneously correlated intheir external and internal degrees of freedom is a major challenge, yetessential for advancing fundamental tests of physics and quantum technologies.In this work, we experimentally demonstrate a mechanism for generating pairs ofatoms in well-defined spin and momentum modes. This mechanism couples atomsfrom a degenerate Bose gas via a superradiant photon-exchange process in anoptical cavity, producing pairs via a single or two discernible channels. Thescheme is independent of collisional interactions, fast and tunable. We observea collectively enhanced production of pairs and probe inter-spin correlationsin momentum space. We characterize the emergent pair statistics, and find thatthe observed dynamics is consistent with being primarily seeded by vacuumfluctuations in the corresponding atomic modes. Together with our observationsof coherent many-body oscillations involving well-defined momentum modes, ourresults offer promising prospects for quantum-enhanced interferometry andquantum simulation experiments using entangled matter waves.

Spin- and momentum-correlated atom pairs mediated by photon exchange and seeded by vacuum fluctuations