Results 11 to 20 of about 1,833,346 (270)

Scott Continuity in Generalized Probabilistic Theories [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2020
In Proceedings QPL 2019, arXiv:2004 ...
Furber, Robert
openaire   +5 more sources

Contextuality of General Probabilistic Theories [PDF]

open access: yesPRX Quantum, 2021
Generalized contextuality refers to our inability of explaining measurement statistics using a context-independent probabilistic and ontological model.
Farid Shahandeh
doaj   +3 more sources

Programming of channels in generalized probabilistic theories [PDF]

open access: yesJournal of Mathematical Physics, 2023
For a given target system and apparatus described by quantum theory, the so-called quantum no-programming theorem indicates that a family of states called programs in the apparatus with a fixed unitary operation on total system programs distinct unitary dynamics to the target system only if the initial programs are orthogonal to each other. The current
Takayuki Miyadera, Ryo Takakura
openaire   +4 more sources

General Probabilistic Theories with a Gleason-type Theorem [PDF]

open access: yesQuantum, 2021
Gleason-type theorems for quantum theory allow one to recover the quantum state space by assuming that (i) states consistently assign probabilities to measurement outcomes and that (ii) there is a unique state for every such assignment. We identify the class of general probabilistic theories which also admit Gleason-type theorems.
Wright, Victoria J, Weigert, Stefan
openaire   +4 more sources

Operational Restrictions in General Probabilistic Theories [PDF]

open access: yesFoundations of Physics, 2020
AbstractThe formalism of general probabilistic theories provides a universal paradigm that is suitable for describing various physical systems including classical and quantum ones as particular cases. Contrary to the usual no-restriction hypothesis, the set of accessible meters within a given theory can be limited for different reasons, and this raises
Sergey N. Filippov   +3 more
openaire   +4 more sources

Incompatibility in General Probabilistic Theories, Generalized Spectrahedra, and Tensor Norms [PDF]

open access: yesCommunications in Mathematical Physics, 2022
60 pages, 4 figures.
Bluhm, Andreas   +2 more
openaire   +3 more sources

Interference as an information-theoretic game [PDF]

open access: yesQuantum, 2021
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
Sebastian Horvat, Borivoje Dakić
doaj   +1 more source

Communication Complexity of Channels in General Probabilistic Theories [PDF]

open access: yesPhysical Review Letters, 2013
The communication complexity of a quantum channel is the minimal amount of classical communication required for classically simulating the process of preparation, transmission through the channel, and subsequent measurement of a quantum state. At present, only little is known about this quantity. In this paper, we present a procedure for systematically
Montina Alberto   +2 more
openaire   +4 more sources

General probabilistic theories: An introduction

open access: yesPhysics Reports, 2023
We introduce the framework of general probabilistic theories (GPTs for short). GPTs are a class of operational theories that generalize both finite-dimensional classical and quantum theory, but they also include other, more exotic theories, such as the boxworld theory containing Popescu–Rohrlich boxes.
openaire   +3 more sources

The Operational Choi–Jamiołkowski Isomorphism

open access: yesEntropy, 2020
In this article, I use an operational formulation of the Choi–Jamiołkowski isomorphism to explore an approach to quantum mechanics in which the state is not the fundamental object.
Emily Adlam
doaj   +1 more source

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