Entanglement for all quantum states
Quantum Physics
2011-05-24 v1
Abstract
It is shown that a state that is factorizable in the Hilbert space corresponding to some choice of degrees of freedom, becomes entangled for a different choice of degrees of freedom. Therefore, entanglement is not a special case but is ubiquitous in quantum systems. Simple examples are calculated and a general proof is provided. The physical relevance of the change of tensor product structure is mentioned.
Cite
@article{arxiv.1002.2893,
title = {Entanglement for all quantum states},
author = {A. C. de la Torre and D. Goyeneche and L. Leitao},
journal= {arXiv preprint arXiv:1002.2893},
year = {2011}
}
Comments
9 pages