278 citations · 1.3k across the 11 of their papers we have counts for
4 papers · 1 filter
The simplest causal inequalities and their violation
Cyril Branciard, Mateus Araújo, Adrien Feix +2
In a scenario where two parties share, act on and exchange some physical resource, the assumption that the parties' actions are ordered according to a definite causal structure yie…
Quantum superposition of the order of parties as a communication resource
Adrien Feix, Mateus Araújo, Časlav Brukner
In a variant of communication complexity tasks, two or more separated parties cooperate to compute a function of their local data, using a limited amount of communication. It is kn…
Characterizing finite-dimensional quantum behavior
Miguel Navascues, Adrien Feix, Mateus Araujo +1
We study and extend the semidefinite programming (SDP) hierarchies introduced in [Phys. Rev. Lett. 115, 020501] for the characterization of the statistical correlations arising fro…
Witnessing causal nonseparability
Mateus Araújo, Cyril Branciard, Fabio Costa +3
Our common understanding of the physical world deeply relies on the notion that events are ordered with respect to some time parameter, with past events serving as causes for futur…