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Single electron-spin memory with a semiconductor quantum dot
- Publication Year :
- 2007
-
Abstract
- We show storage of the circular polarisation of an optical field, transferring it to the spin-state of an individual electron confined in a single semiconductor quantum dot. The state is subsequently readout through the electronically-triggered emission of a single photon. The emitted photon shares the same polarisation as the initial pulse but has a different energy, making the transfer of quantum information between different physical systems possible. With an applied magnetic field of 2 Tesla, spin memory is preserved for at least 1000 times more than the exciton's radiative lifetime.<br />Comment: 7 pages, 4 figures
- Subjects :
- Quantum Physics
Subjects
Details
- Database :
- arXiv
- Publication Type :
- Report
- Accession number :
- edsarx.0706.2143
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1088/1367-2630/9/10/365