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

Multipartite entanglement of large numbers of physically distinct linearresonators is of both fundamental and applied interest, but there have been nofeasible proposals to date for achieving it. At the same time, the Bose-Hubbardmodel with attractive interactions (ABH) is theoretically known to have a phasetransition from the superfluid phase to a highly entangled nonlocalsuperposition, but observation of this phase transition has remained out ofexperimental reach. In this theoretical work, we jointly address these twoproblems by (1) proposing an experimentally accessible quantum simulation ofthe ABH phase transition in an array of tunably coupled superconducting circuitmicrowave resonators and (2) incorporating the simulation into a highlyscalable protocol that takes as input any microwave resonator state withnegligible occupation of number states |0> and |1> and nonlocally superposes itacross the whole array of resonators. The large-scale multipartite entanglementproduced by the protocol is of the W-type, which is well-known for itsrobustness. The protocol utilizes the ABH phase transition to generate themultipartite entanglement of all of the resonators in parallel, and istherefore deterministic and permits an increase in resonator number withoutincrease in protocol complexity; the number of resonators is limited instead bysystem characteristics such as resonator frequency disorder and inter-resonatorcoupling strength. Only one local and two global controls are required for theprotocol. We numerically demonstrate the protocol with realistic systemparameters, and estimate that current experimental capabilities can realize theprotocol with high fidelity for greater than 40 resonators.

Deterministic Many-Resonator W Entanglement of Nearly Arbitrary Microwave States via Attractive Bose-Hubbard Simulation