We show that two initially non-resonant quantum dots may be brought into resonance by the application of a single detuned laser. This allows for control of the inter-dot interactions and the generation of highly entangled excitonic states on the picosecond timescale. Along with arbitrary single qubit manipulations, this system would be sufficient for the demonstration of a prototype excitonic quantum computer.
@article{arxiv.quant-ph/0406123,
title = {Creating excitonic entanglement in quantum dots through the optical Stark effect},
author = {A. Nazir and B. W. Lovett and G. A. D. Briggs},
journal= {arXiv preprint arXiv:quant-ph/0406123},
year = {2007}
}
Comments
4 pages, 3 figures; published version, figure 3 improved, corrections to RWA derived