4 papers
Graphical Tests of Causality
Ãmin Baumeler, Eleftherios-Ermis Tselentis, Stefan Wolf
Bell inequalities limit the possible observations of non-communicating parties. Here, we present analogous inequalities for any number of communicating parties under the causal con…
No quantum advantage for violating fixed-order inequalities?
Veronika Baumann, Ãmin Baumeler, Eleftherios-Ermis Tselentis
In standard quantum theory, the causal relations between operations are fixed. One can relax this notion by allowing for dynamical arrangements, where operations may influence the…
The Möbius game and other Bell tests for relativity
Eleftherios-Ermis Tselentis, Ãmin Baumeler
We derive multiparty games that, if the winning chance exceeds a certain limit, prove the incompatibility of the parties' causal relations with any partial order. This, in turn, me…
The Möbius Game: A Quantum-Inspired Test of General Relativity
Eleftherios-Ermis Tselentis, Ãmin Baumeler
We present a tight inequality to test the dynamical nature of spacetime. A general-relativistic violation of that inequality certifies change of curvature, in the same sense as a q…