# Quantum Theory and Beyond: Is Entanglement Special?

@article{Daki2009QuantumTA, title={Quantum Theory and Beyond: Is Entanglement Special?}, author={Borivoje Daki{\'c} and {\vC}aslav Brukner}, journal={arXiv: Quantum Physics}, year={2009} }

Quantum theory makes the most accurate empirical predictions and yet it lacks simple, comprehensible physical principles from which the theory can be uniquely derived. A broad class of probabilistic theories exist which all share some features with quantum theory, such as probabilistic predictions for individual outcomes (indeterminism), the impossibility of information transfer faster than speed of light (no-signaling) or the impossibility of copying of unknown states (no-cloning). A vast…

## 204 Citations

Information-Theoretic Postulates for Quantum Theory

- Physics
- 2016

Why are the laws of physics formulated in terms of complex Hilbert spaces? Are there natural and consistent modifications of quantum theory that could be tested experimentally? This book chapter…

Computational Complexity and the Nature of Quantum Mechanics (Extended version)

- PhilosophyArXiv
- 2019

It is shown that the computation postulate is the only true divide between QT, seen as a generalised theory of probability, and classical probability.

Computational Complexity and the Nature of Quantum Mechanics

- PhilosophyArXiv
- 2019

It is shown that the computation postulate is the only true divide between QT, seen as a generalised theory of probability, and classical probability.

Perspectives on the Formalism of Quantum Theory

- Mathematics
- 2012

Quantum theory has the distinction among physical theories of currently underpinning most of modern physics, while remaining essentially mysterious, with no general agreement about the nature of its…

Generalized probability theories: what determines the structure of quantum theory?

- Physics
- 2014

It turns out that non-classical features of single systems can equivalently result from higher-dimensional classical theories that have been restricted, and entanglement and non-locality are shown to be genuine non- classical features.

Existence of an information unit as a postulate of quantum theory

- PhysicsProceedings of the National Academy of Sciences
- 2013

It is proved that quantum theory can be formulated through four very simple postulates, each having a direct physical and intuitive meaning, and this constitutes a set of postulates for quantum theory with a simple and direct physical meaning, like the ones of special relativity or thermodynamics.

Information Content of Elementary Systems as a Physical Principle

- PhysicsArXiv
- 2014

An elementary system information content principle (ICP) whose basic ingredient is the phenomenon of Heisenberg uncertainty that states that the amount of non-redundant information which may be extracted from a given system is bounded by a perfectly decodable information content of the system.

Information content of systems as a physical principle

- Computer Science
- 2017

An information content principle (ICP) is introduced which represents the new - constrained uncertainty principle and is capable of separation both classicality and quanta from a number of potential physical theories including hidden variable theories.

Bell's Inequalities - Foundations and Quantum Communication

- PhysicsHandbook of Natural Computing
- 2012

This chapter aims at establishing connections between certain quantum information protocols and foundational issues in quantum theory by demonstrating how quantum contextuality and violations of local realism can be used as useful resources in quantum information applications.

Deriving the Qubit from Entropy Principles

- PhysicsArXiv
- 2013

This work proposes three physically-based axioms which together characterize the simplest quantum system, namely the qubit, and takes two important features of quantum mechanics and turn them into deliberately chosen physical axiomatic.

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