Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Single electron-spin memory with a semiconductor quantum dot
AU - Young, Robert J.
AU - Dewhurst, Samuel J.
AU - Stevenson, R. Mark
AU - Atkinson, Paola
AU - Bennett, Anthony J.
AU - Ward, Martin B.
AU - Cooper, Ken
AU - Ritchie, David A.
AU - Shields, Andrew J.
PY - 2007/10/9
Y1 - 2007/10/9
N2 - 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.
AB - 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.
U2 - 10.1088/1367-2630/9/10/365
DO - 10.1088/1367-2630/9/10/365
M3 - Journal article
VL - 9
SP - -
JO - New Journal of Physics
JF - New Journal of Physics
SN - 1367-2630
M1 - 365
ER -