Locality and Nonlinear Quantum Mechanics
High Energy Physics - Theory
2015-06-18 v2 General Relativity and Quantum Cosmology
Quantum Physics
Abstract
Nonlinear modifications of quantum mechanics generically lead to nonlocal effects which violate relativistic causality. We study these effects using the functional Schrodinger equation for quantum fields and identify a type of nonlocality which causes nearly instantaneous entanglement of spacelike separated systems. We describe a simple example involving widely separated wave-packet (coherent) states, showing that nonlinearity in the Schrodinger evolution causes spacelike entanglement, even in free field theory.
Cite
@article{arxiv.1401.7018,
title = {Locality and Nonlinear Quantum Mechanics},
author = {Chiu Man Ho and Stephen D. H. Hsu},
journal= {arXiv preprint arXiv:1401.7018},
year = {2015}
}
Comments
12 pages, 1 figure, v2: version to appear in IJMPA