Research output: Contribution to Journal/Magazine › Journal article › peer-review
Article number | 365 |
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<mark>Journal publication date</mark> | 9/10/2007 |
<mark>Journal</mark> | New Journal of Physics |
Volume | 9 |
Number of pages | 7 |
Pages (from-to) | - |
Publication Status | Published |
<mark>Original language</mark> | English |
We show storage of the circular polarization 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 read out through the electronically-triggered emission of a single photon. The emitted photon shares the same polarization 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 T, spin memory is preserved for at least 1000 times more than the exciton's radiative lifetime.