3 papers
quant-ph2024
Towards Unconditional Uncloneable Encryption
Pierre Botteron, Anne Broadbent, Eric Culf +3
Uncloneable encryption is a cryptographic primitive which encrypts a classical message into a quantum ciphertext, such that two quantum adversaries are limited in their capacity of…
quant-ph2023
Algebra of Nonlocal Boxes and the Collapse of Communication Complexity
Pierre Botteron, Anne Broadbent, Reda Chhaibi +2
Communication complexity quantifies how difficult it is for two distant computers to evaluate a function f(X,Y), where the strings X and Y are distributed to the first and second c…
math.RA2023
Generalized unistochastic matrices
Ion Nechita, Zikun Ouyang, Anna Szczepanek
We study a class of bistochastic matrices generalizing unistochastic matrices. Given a complex bipartite unitary operator, we construct a bistochastic matrix having as entries the…