3 papers
quant-ph2025
Additivity and chain rules for quantum entropies via multi-index Schatten norms
Omar Fawzi, Jan Kochanowski, Cambyse Rouzé +1
The primary entropic measures for quantum states are additive under the tensor product. In the analysis of quantum information processing tasks, the minimum entropy of a set of sta…
quant-ph2024
Improving device-independent weak coin flipping protocols
Atul Singh Arora, Jamie Sikora, Thomas Van Himbeeck
Weak coin flipping is the cryptographic task where Alice and Bob remotely flip a coin but want opposite outcomes. This work studies this task in the device-independent regime where…
quant-ph2023
Impossibility of adversarial self-testing and secure sampling
Akshay Bansal, Atul Singh Arora, Thomas Van Himbeeck +1
Self-testing is the task where spatially separated Alice and Bob cooperate to deduce the inner workings of untrusted quantum devices by interacting with them in a classical manner.…