Kochen-specker contextuality

C Budroni, A Cabello, O Gühne, M Kleinmann… - Reviews of Modern …, 2022 - APS
A central result in the foundations of quantum mechanics is the Kochen-Specker theorem. In
short, it states that quantum mechanics is in conflict with classical models in which the result …

A review and reformulation of macroscopic realism: resolving its deficiencies using the framework of generalized probabilistic theories

D Schmid - Quantum, 2024 - quantum-journal.org
The notion of macrorealism was introduced by Leggett and Garg in an attempt to capture our
intuitive conception of the macroscopic world, which seems difficult to reconcile with our …

Aspects of the phenomenology of interference that are genuinely nonclassical

L Catani, M Leifer, G Scala, D Schmid, RW Spekkens - Physical Review A, 2023 - APS
Interference phenomena are often claimed to resist classical explanation. However, such
claims are undermined by the fact that the specific aspects of the phenomenology upon …

[HTML][HTML] Why interference phenomena do not capture the essence of quantum theory

L Catani, M Leifer, D Schmid, RW Spekkens - Quantum, 2023 - quantum-journal.org
Quantum interference phenomena are widely viewed as posing a challenge to the classical
worldview. Feynman even went so far as to proclaim that they are the $\textit {only mystery} …

Linear program for testing nonclassicality and an open-source implementation

JH Selby, E Wolfe, D Schmid, AB Sainz, VP Rossi - Physical Review Letters, 2024 - APS
A well-motivated method for demonstrating that an experiment resists any classical
explanation is to show that its statistics violate generalized noncontextuality. We here …

Kirkwood-Dirac representations beyond quantum states and their relation to noncontextuality

D Schmid, RD Baldijão, Y Yīng, R Wagner, JH Selby - Physical Review A, 2024 - APS
Kirkwood-Dirac representations of quantum states are increasingly finding use in many
areas within quantum theory. Usually, representations of this sort are only applied to provide …

Quantum contextuality provides communication complexity advantage

S Gupta, D Saha, ZP Xu, A Cabello, AS Majumdar - Physical Review Letters, 2023 - APS
Despite the conceptual importance of contextuality in quantum mechanics, there is a hitherto
limited number of applications requiring contextuality but not entanglement. Here, we show …

Characterization of noncontextuality in the framework of generalized probabilistic theories

D Schmid, JH Selby, E Wolfe, R Kunjwal… - PRX Quantum, 2021 - APS
To make precise the sense in which the operational predictions of quantum theory conflict
with a classical worldview, it is necessary to articulate a notion of classicality within an …

Certifying quantum signatures in thermodynamics and metrology via contextuality of quantum linear response

M Lostaglio - Physical Review Letters, 2020 - APS
I identify a fundamental difference between classical and quantum dynamics in the linear
response regime by showing that the latter is, in general, contextual. This allows me to …

Unscrambling the omelette of causation and inference: The framework of causal-inferential theories

D Schmid, JH Selby, RW Spekkens - arXiv preprint arXiv:2009.03297, 2020 - arxiv.org
Using a process-theoretic formalism, we introduce the notion of a causal-inferential theory: a
triple consisting of a theory of causal influences, a theory of inferences (of both the Boolean …