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

Quantum secure communication provides a new way for protecting the securityof information. As an important component of quantum secure communication,remote state preparation (RSP) can securely transmit a quantum state from asender to a remote receiver. The existence of quantum noise severely affectsthe security and reliability of quantum communication system. In this paper, westudy the method for improving the efficiency of joint RSP (JRSP) subjected tonoise with the help of weak measurement and its reversal measurement. Taking aGHZ based deterministic JRSP as an example, we utilize the technique of weakmeasurement and its reversal to suppress the effect of the amplitude-dampingnoise firstly. Our study shows that the fidelity of the output state can beimproved in the amplitude-damping noise. We also study the effect of weakmeasurement and its reversal in other three types of noise usually encounteredin real-world, namely, the bit-flip, phase-flip (phase-damping) anddepolarizing noise. Our results show that the weak measurement has no effectfor suppressing the bit-flip and phase-flip (phase-damping) noise, while hasslight effect for suppressing the depolarizing noise. Our study is suitable forJRSP and RSP, and will be helpful for improving the efficiency of multiparticleentanglement based quantum secure communication in real implementation.

Improving the efficiency of joint remote state preparation in noisy environment with weak measurement