Titel
Quantum superpositions of ‘common-cause’ and ‘direct-cause’ causal structures
Autor*in
Abstract
The constraints arising for a general set of causal relations, both classically and quantumly, are still poorly understood. As a step in exploring this question, we consider a coherently controlled superposition of 'direct-cause' and 'common-cause' relationships between two events. We propose an implementation involving the spatial superposition of a mass and general relativistic time dilation. Finally, we develop a computationally efficient method to distinguish such genuinely quantum causal structures from classical (incoherent) mixtures of causal structures and show how to design experimental verifications of the nonclassicality of a causal structure.
Objekt-Typ
Sprache
Englisch [eng]
Persistent identifier
phaidra.univie.ac.at/o:907594
Erschienen in
Titel
New Journal of Physics
Band
19
Ausgabe
12
Seitenanfang
123028
Publication
IOP Publishing
Erscheinungsdatum
2017
Zugänglichkeit
Rechte
Rechteangabe
© 2017 The Author(s)
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