4 papers · 1 filter
Tsirelson inequalities: Detecting cheating and quantumness in a single framework
Martin Plávala, Teiko Heinosaari, Stefan Nimmrichter +1
Quantumness refers to the peculiar and counterintuitive characteristics exhibited by quantum systems. Tsirelson inequalities have emerged as a powerful tool in quantum theory to de…
Structure of quantum and classical implementations of Popescu-Rohrlich box
Anna Jenčová, Martin Plávala
We construct implementations of the PR-box using quantum and classical channels as state spaces. In both cases our constructions are very similar and they share the same idea taken…
On the properties of spectral effect algebras
Anna Jenčová, Martin Plávala
The aim of this paper is to show that there can be either only one or uncountably many contexts in any spectral effect algebra, answering a question posed in [S. Gudder, Convex and…
No-free-information principle in general probabilistic theories
Teiko Heinosaari, Leevi Leppäjärvi, Martin Plávala
In quantum theory, the no-information-without-disturbance and no-free-information theorems express that those observables that do not disturb the measurement of another observable…