Variation of Entanglement Entropy in Scattering Process
High Energy Physics - Theory
2015-05-20 v2
Abstract
In a scattering process, the final state is determined by an initial state and an S-matrix. We focus on two-particle scattering processes and consider the entanglement between these particles. For two types initial states; i.e., an unentangled state and an entangled one, we calculate perturbatively the change of entanglement entropy from the initial state to the final one. Then we show a few examples in a field theory and in quantum mechanics.
Cite
@article{arxiv.1412.7894,
title = {Variation of Entanglement Entropy in Scattering Process},
author = {I. Y. Park and Shigenori Seki and Sang-Jin Sin},
journal= {arXiv preprint arXiv:1412.7894},
year = {2015}
}
Comments
13 pages; v2: refs. added