Probabilistic nonlocal gate operation via imperfect entanglement
Quantum Physics
2007-05-23 v1
Abstract
Nonlocal gate operation is based on sharing an ancillary pair of qubits in perfect entanglement. When the ancillary pair are partially entangled, the efficiency of the gate operation drops. Using general transformations, we devise probabilistic nonlocal gates, which perform the nonlocal operation conclusively when the ancillary pair are only partially entangled. We show that a controlled purification protocol can be implemented by the probabilistic nonlocal operation.
Cite
@article{arxiv.quant-ph/0101107,
title = {Probabilistic nonlocal gate operation via imperfect entanglement},
author = {Jingak Jang and Jinhyoung Lee and M. S. Kim and Y. -J. Park},
journal= {arXiv preprint arXiv:quant-ph/0101107},
year = {2007}
}
Comments
4 pages, 3 figures