Titel
Interference as an information-theoretic game
Autor*in
Abstract
The double slit experiment provides a clear demarcation between classical and quantum theory, while multi-slit experiments demarcate quantum and higher-order interference theories. In this work we show that these experiments pertain to a broader class of processes, which can be formulated as information-processing tasks, providing a clear cut between classical, quantum and higher-order theories. The tasks involve two parties and communication between them with the goal of winning certain parity games. We show that the order of interference is in one-to-one correspondence with the parity order of these games. Furthermore, we prove the order of interference to be additive under composition of systems both in classical and quantum theory. The latter result can be used as a (semi)device-independent witness of the number of particles in the quantum setting. Finally, we extend our game formulation within the generalized probabilistic framework and prove that tomographic locality implies the additivity of the order of interference under composition. These results shed light on the operational meaning of the order of interference and can be important for the identification of the information-theoretic principles behind second-order interference in quantum theory.
Stichwort
Physics and Astronomy (miscellaneous)Atomic and Molecular Physics, and Optics
Objekt-Typ
Sprache
Englisch [eng]
Persistent identifier
https://phaidra.univie.ac.at/o:1622276
Erschienen in
Titel
Quantum
Band
5
ISSN
2521-327X
Erscheinungsdatum
2021
Seitenanfang
404
Verlag
Verein zur Forderung des Open Access Publizierens in den Quantenwissenschaften
Projektnummer
BeyondC-F7112 – Austrian Science Fund (FWF)
Projektnummer
ESQ Discovery Grant – Österreichische Akademie der Wissenschaften (ÖAW)
Erscheinungsdatum
2021
Zugänglichkeit

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