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arXiv · 0710.1490

Electrostatic control of quantum dot entanglement induced by coupling to external reservoirs

Elena del Valle·Fabrice P. Laussy·Carlos Tejedor
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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.

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Elena del Valle, Fabrice P. Laussy, Carlos Tejedor. 2007-10-08. Electrostatic control of quantum dot entanglement induced by coupling to external reservoirs. https://doi.org/10.1209/0295-5075/80/57001

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