General probabilistic theories: An introduction
M Plávala - Physics Reports, 2023 - Elsevier
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 …
class of operational theories that generalize both finite-dimensional classical and quantum …
A no-go theorem on the nature of the gravitational field beyond quantum theory
Recently, table-top experiments involving massive quantum systems have been proposed to
test the interface of quantum theory and gravity. In particular, the crucial point of the debate …
test the interface of quantum theory and gravity. In particular, the crucial point of the debate …
Unscrambling the omelette of causation and inference: The framework of causal-inferential theories
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 …
triple consisting of a theory of causal influences, a theory of inferences (of both the Boolean …
Accessible fragments of generalized probabilistic theories, cone equivalence, and applications to witnessing nonclassicality
The formalism of generalized probabilistic theories (GPTs) was originally developed as a
way to characterize the landscape of conceivable physical theories. Thus, the GPT …
way to characterize the landscape of conceivable physical theories. Thus, the GPT …
Reconstructing quantum theory from diagrammatic postulates
A reconstruction of quantum theory refers to both a mathematical and a conceptual
paradigm that allows one to derive the usual formulation of quantum theory from a set of …
paradigm that allows one to derive the usual formulation of quantum theory from a set of …
Any consistent coupling between classical gravity and quantum matter is fundamentally irreversible
When gravity is sourced by a quantum system, there is tension between its role as the
mediator of a fundamental interaction, which is expected to acquire nonclassical features …
mediator of a fundamental interaction, which is expected to acquire nonclassical features …
Entanglement is necessary for emergent classicality in all physical theories
JG Richens, JH Selby, SW Al-Safi - Physical review letters, 2017 - APS
One of the most striking features of quantum theory is the existence of entangled states,
responsible for Einstein's so called “spooky action at a distance.” These states emerge from …
responsible for Einstein's so called “spooky action at a distance.” These states emerge from …
Kindergarden quantum mechanics graduates... or how I learned to stop gluing LEGO together and love the ZX-calculus
This paper is a 'spiritual child'of the 2005 lecture notes Kindergarten Quantum Mechanics
Coecke (2005)[24], which showed how a simple, pictorial extension of Dirac notation …
Coecke (2005)[24], which showed how a simple, pictorial extension of Dirac notation …
Ruling out higher-order interference from purity principles
As first noted by Rafael Sorkin, there is a limit to quantum interference. The interference
pattern formed in a multi-slit experiment is a function of the interference patterns formed …
pattern formed in a multi-slit experiment is a function of the interference patterns formed …
A no-go theorem for theories that decohere to quantum mechanics
To date, there has been no experimental evidence that invalidates quantum theory. Yet it
may only be an effective description of the world, in the same way that classical physics is an …
may only be an effective description of the world, in the same way that classical physics is an …