Electrostatic control of quantum dot entanglement induced by coupling to external reservoirs
Mesoscale and Nanoscale Physics
2009-07-09 v1
Abstract
We propose a quantum transport experiment to prepare and measure charge-entanglement between two electrostatically defined quantum dots. Coherent population trapping, as realized in cavity quantum electrodynamics, can be carried out by using a third quantum dot to play the role of the optical cavity. In our proposal, a pumping which is quantum mechanically indistinguishable for the quantum dots drives the system into a state with a high degree of entanglement. The whole effect can be switched on and off by means of a gate potential allowing both state preparation and entanglement detection by simply measuring the total current.
Cite
@article{arxiv.0710.1490,
title = {Electrostatic control of quantum dot entanglement induced by coupling to external reservoirs},
author = {Elena del Valle and Fabrice P. Laussy and Carlos Tejedor},
journal= {arXiv preprint arXiv:0710.1490},
year = {2009}
}
Comments
5 pages, 4 figures, Latex2e with EPL macros, to appear in Europhysics Letters