Spin qubits with electrically gated polyoxometalate molecules
| dc.creator | Lehmann, Jörg | |
| dc.creator | Gaita-Ariño, Alejandro | |
| dc.creator | Coronado, Eugenio | |
| dc.creator | Loss, Daniel | |
| dc.date | 2007-03-19 | |
| dc.date.accessioned | 2026-07-07T07:59:21Z | |
| dc.date.available | 2026-07-07T07:59:21Z | |
| dc.description | Spin qubits offer one of the most promising routes to the implementation of quantum computers. Very recent results in semiconductor quantum dots show that electrically-controlled gating schemes are particularly well-suited for the realization of a universal set of quantum logical gates. Scalability to a larger number of qubits, however, remains an issue for such semiconductor quantum dots. In contrast, a chemical bottom-up approach allows one to produce identical units in which localized spins represent the qubits. Molecular magnetism has produced a wide range of systems with tailored properties, but molecules permitting electrical gating have been lacking. Here we propose to use the polyoxometalate [PMo12O40(VO)2]q-, where two localized spins-1/2 can be coupled through the electrons of the central core. Via electrical manipulation of the molecular redox potential, the charge of the core can be changed. With this setup, two-qubit gates and qubit readout can be implemented. | |
| dc.description | 9 pages, 6 figures, to appear in Nature Nanotechnology | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0703501 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0703501 | |
| dc.identifier | Nature Nanotech. 2, 312 (2007) | |
| dc.identifier | doi:10.1038/nnano.2007.110 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/128336 | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.subject | Materials Science | |
| dc.title | Spin qubits with electrically gated polyoxometalate molecules | |
| dc.type | text |