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quant-ph2025
Protocols for Quantum Weak Coin Flipping
Atul Singh Arora, Jérémie Roland, Chrysoula Vlachou +1
Weak coin flipping is an important cryptographic primitive$\unicode{x2013}$it is the strongest known secure two-party computation primitive that classically becomes secure only und…
quant-ph2025
Cheat-Penalised Quantum Weak Coin-Flipping
Atul Singh Arora, Carl A. Miller, Mauro E. S. Morales +1
Coin-flipping is a fundamental task in two-party cryptography where two remote mistrustful parties wish to generate a shared uniformly random bit. While quantum protocols promising…
quant-ph2024
A computational test of quantum contextuality, and even simpler proofs of quantumness
Atul Singh Arora, Kishor Bharti, Alexandru Cojocaru +1
Bell non-locality is a fundamental feature of quantum mechanics whereby measurements performed on "spatially separated" quantum systems can exhibit correlations that cannot be unde…