Electrostatic control of quantum dot entanglement induced by coupling to external reservoirs
arXiv:0710.1490 · doi:10.1209/0295-5075/80/57001
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.
5 pages, 4 figures, Latex2e with EPL macros, to appear in Europhysics Letters
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