Phonon-induced entanglement dynamics of two donor-based charge quantum bits
Quantum Physics
2015-05-30 v1 Other Condensed Matter
Abstract
The entanglement dynamics of a pair of donor-based charge qubits is obtained in analytical form. The disentanglement is induced by off resonant scattering of acoustical phonons in the semiconductor host. According to our results a rather unusual recovery of entanglement occurs that depends on the geometrical configuration of the qubits. In addition, for large times a non-vanishing stationary entanglement is predicted. For the cases of one and two initial excitations a simple kinetic interpretation allows for an adequate analysis of the observed dynamics. Our results also reveal a direct relation between the disentanglement rate and the inter-donor decoherence rates.
Keywords
Cite
@article{arxiv.1108.2416,
title = {Phonon-induced entanglement dynamics of two donor-based charge quantum bits},
author = {F. Lastra and S. A. Reyes and S. Wallentowitz},
journal= {arXiv preprint arXiv:1108.2416},
year = {2015}
}