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22 papers · 2 filters
Simple and general bounds on quantum random access codes
Máté Farkas, Nikolai Miklin, Armin Tavakoli
Random access codes are a type of communication task that is widely used in quantum information science. The optimal average success probability that can be achieved through classi…
The standard no-signalling constraints in Bell scenarios are neither sufficient nor necessary for preventing superluminal signalling with general interventions
V. Vilasini, Roger Colbeck
Non-classical correlations resulting from entangled quantum systems have sparked debates about the compatibility of quantum theory and relativity, and about the right way to think…
Protocols for counterfactual and twin-field quantum digital signature
Vinod N. Rao, Shrikant Utagi, Anirban Pathak +1
Quantum digital signature (QDS) is the quantum version of its classical counterpart, and can offer security against attacks of repudiation, signature forging and external eavesdrop…
Extended Wigner's friend paradoxes do not require nonlocal correlations
Laurens Walleghem, Rafael Wagner, Yìlè Yīng +1
Extended Wigner's friend no-go theorems provide a modern lens for investigating the measurement problem, by making precise the challenges that arise when one attempts to model agen…
Quantum Illumination and Quantum Radar: A Brief Overview
Athena Karsa, Alasdair Fletcher, Gaetana Spedalieri +1
Quantum illumination (QI) and quantum radar have emerged as potentially groundbreaking technologies, leveraging the principles of quantum mechanics to revolutionise the field of re…
Quantum communications feasibility tests over a UK-Ireland 224-km undersea link
Ben Amies-King, Karolina P. Schatz, Haofan Duan +9
The future quantum internet will leverage existing communication infrastructures, including deployed optical fibre networks, to enable novel applications that outperform current in…