Entanglement in quantum catastrophes
量子物理
2009-11-11 v1 介观与纳米尺度物理
摘要
We classify entanglement singularities for various two-mode bosonic systems in terms of catastrophe theory. Employing an abstract phase-space representation, we obtain exact results in limiting cases for the entropy in cusp, butterfly, and two-dimensional catastrophes. We furthermore use numerical results to extract the scaling of the entropy with the non-linearity parameter, and discuss the role of mixing entropies in more complex systems.
引用
@article{arxiv.quant-ph/0503160,
title = {Entanglement in quantum catastrophes},
author = {Clive Emary and Neill Lambert and Tobias Brandes},
journal= {arXiv preprint arXiv:quant-ph/0503160},
year = {2009}
}
备注
7 pages, 3 figures