Complete disentanglement by partial pure dephasing
Quantum Physics
2007-05-23 v2 Mesoscale and Nanoscale Physics
Abstract
We study the effect of pure dephasing on the entanglement of a pair of two-level subsystems (qubits). We show that partial dephasing induced by a super-Ohmic reservoir, corresponding to well-established properties of confined charge states and phonons in semiconductors, may lead to complete disentanglement. We show also that the disentanglement effect increases with growing distance between the two subsystems.
Keywords
Cite
@article{arxiv.quant-ph/0507027,
title = {Complete disentanglement by partial pure dephasing},
author = {Katarzyna Roszak and Pawel Machnikowski},
journal= {arXiv preprint arXiv:quant-ph/0507027},
year = {2007}
}
Comments
Final, considerably extended version, 6 pages, 4 figures