9 papers
Entanglement in quantum channel discrimination: sometimes less is more
Kristin Sundal Lien, Marco Túlio Quintino
Entanglement is known to be a powerful resource that improves performance in various quantum information and computational tasks. A standard example of such a phenomenon is the pos…
Can every set of incompatible measurements lead to genuine multipartite steering?
Lucas E. A. Porto, Lucas Tendick, Daniel Cavalcanti +2
Measurement incompatibility and bipartite quantum steering are known to display a strong connection: a set of measurements is incompatible if and only if it can lead to bipartite s…
Double Recurrence and Almost Sure Convergence: Primes and Weighted Theory
Jan Fornal, Ben Krause
Let be a probability space equipped with an invertible, measure-preserving transformation . We exhibit a wide class of weights so that whenever $f,g \i…
Post-measurement states are (very) useful for measurement discrimination
Charbel Eid, Marco Túlio Quintino
The standard approach to quantum measurement discrimination is to perform the given unknown measurement on a probe state, possibly entangled with an auxiliary system, and make a de…
Composable simultaneous purification: when all communication scenarios reduce to spatial correlations
Matilde Baroni, Dominik Leichtle, Ivan Šupić +2
Bell non-locality is a powerful framework to distinguish classical, quantum and post-quantum resources, which relies on non-communicating players. Under which restriction can we ha…
Higher-order quantum computing with known input states
Vanessa Brzić, Satoshi Yoshida, Mio Murao +1
In higher-order quantum computing (HOQC), one typically considers the universal transformation of unknown quantum operations, treated as blackboxes. It is also implicitly assumed t…
Can outcome communication explain Bell nonlocality?
Carlos Vieira, Carlos de Gois, Pedro Lauand +3
A central aspect of quantum information is that correlations between spacelike separated observers sharing entangled states cannot be reproduced by local hidden variable (LHV) mode…
Strict hierarchy between -wise measurement simulability, compatibility structures, and multi-copy compatibility
Lucas Tendick, Costantino Budroni, Marco Túlio Quintino
The incompatibility of quantum measurements, i.e. the fact that certain observable quantities cannot be measured jointly is widely regarded as a distinctive quantum feature with im…
Measurement incompatibility and quantum steering via linear programming
Lucas E. A. Porto, Sébastien Designolle, Sebastian Pokutta +1
The problem of deciding whether a set of quantum measurements is jointly measurable is known to be equivalent to determining whether a quantum assemblage is unsteerable. This probl…