# An Introduction to Consistent Quantum Theory

@article{Hohenberg2010AnIT, title={An Introduction to Consistent Quantum Theory}, author={Pierre Hohenberg}, journal={Reviews of Modern Physics}, year={2010}, volume={82}, pages={2835-2844} }

This paper presents an elementary introduction to consistent quantum theory, as developed by Griffiths and others over the past $25\phantom{\rule{0.3em}{0ex}}\text{years}$. The theory is a version of orthodox (Copenhagen) quantum mechanics based on the notion that the unique and mysterious feature of quantum, as opposed to classical systems, is the simultaneous existence of multiple incompatible representations of reality, referred to as ``frameworks.'' A framework is a maximal set of…

## 63 Citations

Compatible quantum theory.

- PhilosophyReports on progress in physics. Physical Society
- 2014

The present realistic formulation of the histories approach originally introduced by Griffiths, which the authors call 'compatible quantum theory (CQT)', consists of a 'microscopic' part (MIQM), which applies to a closed quantum system of any size, and a 'macroscopic' parts (MAQM) which requires the participation of a large (ideally, an infinite) system.

The regular histories formulation of quantum theory

- Philosophy
- 2012

It can be argued that RH compares favourably with other proposed interpretations of quantum mechanics in that it resolves the measurement problem while retaining an essentially classical worldview without parallel universes, a framework-dependent reality or action-at-a-distance.

On the Consistency of the Consistent Histories Approach to Quantum Mechanics

- Physics, Philosophy
- 2013

The present work questions the validity of claims offered by CH proponents asserting that it solves many interpretational problems in quantum mechanics, and critically examines the proposed notion of a realm-dependent reality.

Timeless Configuration Space and the Emergence of Classical Behavior

- Physics
- 2015

This paper attempts to give an alternative answer to the issues faced by consistent histories, by exploring a timeless interpretation of quantum mechanics of closed systems, done solely in terms of path integrals in non-relativistic, timeless, configuration space.

Variational consistent histories as a hybrid algorithm for quantum foundations

- PhysicsNature Communications
- 2019

A variational hybrid quantum-classical algorithm for finding consistent histories, which should revitalize interest in this formalism by allowing classically impossible calculations to be performed.

Do We Really Understand Quantum Mechanics

- Physics
- 2012

This article presents a general discussion of several aspects of our present understanding of quantum mechanics. The emphasis is put on the very special correlations that this theory makes possible:…

The Quantum Mechanical Arrows of Time

- Physics
- 2014

The familiar textbook quantum mechanics of laboratory measurements incorporates a quantum mechanical arrow of time—the direction in time in which state vector reduction operates. This arrow is…

Relational Quantum Mechanics and Probability

- PhysicsFoundations of Physics
- 2018

We present a derivation of the third postulate of relational quantum mechanics (RQM) from the properties of conditional probabilities. The first two RQM postulates are based on the information that…

## References

SHOWING 1-10 OF 19 REFERENCES

Consistent Quantum Theory

- Physics
- 2001

1. Introduction 2. Wave functions 3. Linear algebra in Dirac notation 4. Physical properties 5. Probabilities and physical variables 6. Composite systems and tensor products 7. Unitary dynamics 8.…

Many worlds? : Everett, quantum theory, and reality

- Philosophy
- 2010

Many Worlds: an Introduction 1. WHY MANY WORLDS? 1. Decoherence and Ontology 2. Quasiclassical Realms 3. Macroscopic Superpositions, Decoherent Histories, and the Emergence of Hydrodynamical…

Quantum mechanics and experience

- Physics
- 1992

Superposition the mathematical formalism and the standard way of thinking about it nonlocality the measurement problem the collapse of the wave function the dynamics by itself Bohm's theory…

The Born-Einstein Letters

- Physics, Environmental ScienceScience
- 1973

A convincing relation between the solar magnetic sector structure and the earth's meteorological activity as indicated by vorticity at the 300-millibar level is shown.

The Fabric of the Cosmos

- Art
- 2004

Alexander Graham Bell 74401 DVD 50 min IS 1996 McCarney & Associates His desire to help his deaf mother communicate led to one of the most important inventions of the 20th century. However, the…

Understanding Quantum Mechanics Prince

- Found. Phys. Lett
- 2006

The Fabric of the Cosmos (A. Knopf, NY)

- 2004