# Collapse of the State Vector

@article{Weinberg2012CollapseOT, title={Collapse of the State Vector}, author={Steven Weinberg}, journal={Physical Review A}, year={2012}, volume={85}, pages={062116} }

Modifications of quantum mechanics are considered, in which the state vector of any system, large or small, undergoes a stochastic evolution. The general class of theories is described, in which the probability distribution of the state vector collapses to a sum of delta functions, one for each possible final state, with coefficients given by the Born rule.

## 78 Citations

Quantum State Reduction

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- 2016

We propose an energy-driven stochastic master equation for the density matrix as a dynamical model for quantum state reduction. In contrast, most previous studies of state reduction have considered…

Interpretations of Quantum Theory in the Light of Modern Cosmology

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The difficult issues related to the interpretation of quantum mechanics and, in particular, the “measurement problem” are revisited using as motivation the process of generation of structure from…

Uniqueness of the equation for quantum state vector collapse.

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Here the most general class of continuous wave function evolutions under the assumption of no-faster-than-light signaling is identified, compatible with general physical requirements.

Possible role of gravity in collapse of the wave-function: a brief survey of some ideas

- Physics
- 2015

This article is a brief survey of some approaches to implementing the suggestion that collapse of the wave function is mediated by gravity. These approaches include: a possible connection between the…

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- PhysicsThe European Physical Journal Plus
- 2019

Abstract.By applying the basic concept of the density matrix in an open quantum system and modification of quantum mechanics, we derive the Kossakowski-Lindblad equation, and different properties of…

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This article addresses the origin of the arrow of time from a cosmological perspective motivated by a novel approach to quantum gravitation, based on a quantum counterpart of the equivalence principle, a general covariance of the dynamical phase space.

Quantum Dynamics as Landau–Lifshitz-Type Dynamics and Random Wave Function Collapse

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It is first observed that quantum dynamics can be viewed as Landau–Lifshitz-type dynamics. Then, by using this fact, instability-induced random branching of deterministic dynamics is discussed as a…

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The wavefunction is ubiquitous as a mathematical tool, and is used across the fields, from quantum chemistry to molecular dynamics in biological processes, yet we don’t know what it actually…

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- Physics
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Using complex quantum Hamilton-Jacobi formulation, a new kind of non-linear equations is proposed that have almost classical structure and extend the Schroedinger equation to describe the collapse of…

Ramsey Interferometers as a test for the correction to quantum mechanics

- Physics
- 2018

By applying the basic concept of the density matrix in an open quantum system and modification of quantum mechanics, we derive Kossakowski-Lindblad equation and different properties of this equation…

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