11 citations · 22 across the 12 of their papers we have counts for
4 papers · 2 filters
Optimal and Feasible Contextuality-based Randomness Generation
Yuan Liu, Ravishankar Ramanathan
Semi-device-independent (SDI) randomness generation protocols based on Kochen-Specker contextuality offer the attractive features of compact devices, high rates, and ease of experi…
When Quantum Nonlocality Does Not Play Dice
Ravishankar Ramanathan, Yuan Liu, Stefano Pironio
Bell nonlocality is widely viewed as a signature of intrinsic randomness, effectively playing the role of a 'dice' at the heart of many device-independent cryptographic protocols.…
Generalised Kochen-Specker Theorem for Finite Non-Deterministic Outcome Assignments
Ravishankar Ramanathan
The Kochen-Specker (KS) theorem is a cornerstone result in quantum foundations, establishing that quantum correlations in Hilbert spaces of dimension cannot be explained…
Test of the physical significance of Bell nonlocality
Carlos Vieira, Ravishankar Ramanathan, Adán Cabello
Loophole-free violations of Bell inequalities imply that at least one of the assumptions behind local hidden-variable theories must fail. Here, we show that, if only one fails, the…