3 papers
quant-ph2026
On-Chip Quantum Randomness Amplification
Lang Li, Yutian Wu, Giulio Chiribella +1
Randomness amplification, the task of extracting uniform private bits from biased seeds that may be partly known by a malicious third party, is of central importance in cryptograph…
quant-ph2025
No Bound Randomness in Quantum Nonlocality
Ravishankar Ramanathan, Yuan Liu, Yutian Wu +1
Recently it has been found that there exist maximally nonlocal quantum correlations that fail to certify randomness for any fixed input pair, rendering them useless for device-inde…
quant-ph2025
Accumulation of Device-Independent Quantum Randomness against Time-Ordered No-Signalling Adversaries
Ravishankar Ramanathan, Yuan Liu, Yutian Wu
The question of security of practical device-independent protocols against no-signalling adversaries, the ultimate form of cryptographic security, has remained open. A key ingredie…