Quantum Computation with Quantum Dots and Terahertz Cavity Quantum Electrodynamics
Quantum Physics
2019-08-17 v2
Abstract
A quantum computer is proposed in which information is stored in the two lowest electronic states of doped quantum dots (QDs). Many QDs are located in a microcavity. A pair of gates controls the energy levels in each QD. A Controlled Not (CNOT) operation involving any pair of QDs can be effected by a sequence of gate-voltage pulses which tune the QD energy levels into resonance with frequencies of the cavity or a laser. The duration of a CNOT operation is estimated to be much shorter than the time for an electron to decohere by emitting an acoustic phonon.
Cite
@article{arxiv.quant-ph/9903065,
title = {Quantum Computation with Quantum Dots and Terahertz Cavity Quantum Electrodynamics},
author = {Mark S. Sherwin and Atac Imamoglu and Thomas Montroy},
journal= {arXiv preprint arXiv:quant-ph/9903065},
year = {2019}
}
Comments
Revtex 6 pages, 3 postscript figures, minor typos corrected