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

One of the most important tasks in modern quantum science is to coherentlycontrol and entangle many-body systems, and to subsequently use these systemsto realize powerful quantum technologies such as quantum-enhanced sensors.However, many-body entangled states are difficult to prepare and preserve sinceinternal dynamics and external noise rapidly degrade any useful entanglement.Here, we introduce a protocol that counterintuitively exploits inhomogeneities,a typical source of dephasing in a many-body system, in combination withinteractions to generate metrologically useful and robust many-body entangledstates. Motivated by current limitations in state-of-the-art three-dimensional(3D) optical lattice clocks (OLCs) operating at quantum degeneracy, we uselocal interactions in a Hubbard model with spin-orbit coupling to achieve aspin-locking effect. In addition to prolonging inter-particle spin coherence,spin-locking transforms the dephasing effect of spin-orbit coupling into acollective spin-squeezing process that can be further enhanced by applying amodulated drive. Our protocol is fully compatible with state-of-the-art 3D OLCinterrogation schemes and may be used to improve their sensitivity, which iscurrently limited by the intrinsic quantum noise of independent atoms. Wedemonstrate that even with realistic experimental imperfections, our protocolmay generate $\sim10$--$14$ dB of spin squeezing in $\sim1$ second with$\sim10^2$--$10^4$ atoms. This capability allows OLCs to enter a new era ofquantum enhanced sensing using correlated quantum states of drivennon-equilibrium systems.

Engineering spin squeezing in a 3D optical lattice with interacting spin-orbit-coupled fermions