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

Entanglement distillation is a key primitive for distributing high-qualityentanglement between remote locations. Probabilistic noiseless linearamplification based on the quantum scissors is a candidate for entanglementdistillation from noisy continuous-variable (CV) entangled states. Being anon-Gaussian operation, quantum scissors is challenging to analyze. We presenta derivation of the non-Gaussian state heralded by multiple quantum scissors ina pure loss channel with two-mode squeezed vacuum input. We choose the reversecoherent information (RCI)---a proven lower bound on the distillableentanglement of a quantum state under one-way local operations and classicalcommunication (LOCC), as our figure of merit. We evaluate a Gaussian lowerbound on the RCI of the heralded state. We show that it can exceed theunlimited two-way LOCCassisted direct transmission entanglement distillationcapacity of the pure loss channel. The optimal heralded Gaussian RCI with twoquantum scissors is found to be significantly more than that with a singlequantum scissors, albeit at the cost of decreased success probability. Ourresults fortify the possibility of a quantum repeater scheme for CV quantumstates using the quantum scissors.

Continuous-variable entanglement distillation over a pure loss channel with multiple quantum scissors