Title :
Optically controlled locking of the nuclear field via coherent dark state spectroscopy
Author :
Sun, Bo ; Xu, Xiaodong ; Steel, D.G. ; Yao, Wang ; Bracker, A.S. ; Gammon, D. ; Sham, L.J.
Author_Institution :
H.M. Randall Lab., Univ. of Michigan, Ann Arbor, MI, USA
Abstract :
We report the suppression of nuclear spin fluctuations in a self assembled quantum dot via coherent dark state spectroscopy, resulting in a factor of 40 enhancement of the coherence time of a single electron spin.
Keywords :
III-V semiconductors; dark states; dynamic nuclear polarisation; hyperfine interactions; indium compounds; self-assembly; semiconductor quantum dots; InAs; coherence time; coherent dark state spectroscopy; hole-spin assisted dynamic nuclear spin polarization; noncollinear hyperfine coupling; nuclear field locking; nuclear spin fluctuations; optical control; self assembled quantum dot; single electron spin; Dark states; Electrons; Fluctuations; Optical control; Optical devices; Optical pumping; Probes; Quantum dots; Spectroscopy; Trions; (270.5585) Quantum information and processing; (300.6470) Semiconductors spectroscopy;
Conference_Titel :
Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-55752-869-8
Electronic_ISBN :
978-1-55752-869-8
