Entanglement in bosonic systems
Quantum Physics
2007-05-23 v3
Abstract
We present a technique to resolve a Gaussian density matrix and its time evolution through known expectation values in position and momentum. Further we find the full spectrum of this density matrix and apply the technique to a chain of harmonic oscillators to find agreement with conformal field theory in this domain. We also observe that a non-conformal state has a divergent entanglement entropy.
Cite
@article{arxiv.quant-ph/0508160,
title = {Entanglement in bosonic systems},
author = {Stein Olav Skrøvseth},
journal= {arXiv preprint arXiv:quant-ph/0508160},
year = {2007}
}
Comments
7 pages, 6 figures