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

Magnetic domain walls (DWs) are topological defects that exhibit robustlow-energy modes that can be harnessed for classical and neuromorphiccomputing. However, the quantum nature of these modes has been elusive thusfar. Using the language of cavity optomechanics, we show how to exploit ageometric Berry-phase interaction between the localized DWs and the extendedmagnons in short ferromagnetic insulating wires to efficiently cool the DW toits quantum ground state or to prepare nonclassical states exhibiting anegative Wigner function that can be extracted from the power spectrum of theemitted magnons. Moreover, we demonstrate that magnons can mediate long-rangeentangling interactions between qubits stored in distant DWs, which couldfacilitate the implementation of a universal set of quantum gates. Our proposalrelies only on the intrinsic degrees of freedom of the ferromagnet, and can benaturally extended to explore the quantum dynamics of DWs in ferrimagnets andantiferromagnets, as well as quantum vortices or skyrmions confined ininsulating magnetic nanodisks.

Cavity magnonics with domain walls in insulating ferromagnetic wires