Nazir, A;
Lovett, BW;
Barrett, SD;
Spiller, TP;
Briggs, GAD;
(2004)
Selective spin coupling through a single exciton.
PHYS REV LETT
, 93
(15)
, Article 150502. 10.1103/PhysRevLett.93.150502.
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Abstract
We present a novel scheme for performing a conditional phase gate between two spin qubits in adjacent semiconductor quantum dots through delocalized single exciton states, formed through the interdot Forster interaction. We consider two resonant quantum dots, each containing a single excess conduction band electron whose spin embodies the qubit. We demonstrate that both the two-qubit gate and arbitrary single-qubit rotations may be realized to a high fidelity with current semiconductor and laser technology.
| Type: | Article |
|---|---|
| Title: | Selective spin coupling through a single exciton |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.93.150502 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.93.150502 |
| Language: | English |
| Additional information: | The American Physical Society |
| Keywords: | SEMICONDUCTOR QUANTUM DOTS, COMPUTATION |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery.ucl.ac.uk/id/eprint/153686 |
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