2 papers
quant-ph2025
Chain rules for quantum Rényi entropies
Frédéric Dupuis
We present chain rules for a new definition of the quantum Rényi conditional entropy sometimes called the "sandwiched" Rényi conditional entropy. More precisely, we prove analogu…
quant-ph2024
Fiat-Shamir for Proofs Lacks a Proof Even in the Presence of Shared Entanglement
Frédéric Dupuis, Philippe Lamontagne, Louis Salvail
We explore the cryptographic power of arbitrary shared physical resources. The most general such resource is access to a fresh entangled quantum state at the outset of each protoco…