Mode Locking of Electron Spin Coherences in Singly Charged Quantum Dots

作者: A Greilich , DR Yakovlev , A Shabaev , Al L Efros , IA Yugova

DOI: 10.1126/SCIENCE.1128215

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摘要: The fast dephasing of electron spins in an ensemble quantum dots is detrimental for applications information processing. We show here that can be overcome by using a periodic train light pulses to synchronize the phases precessing spins, and we demonstrate this effect singly charged (In,Ga)As/GaAs dots. This mode locking leads constructive interference contributions Faraday rotation presents potential based on robust coherence within

参考文章(15)
SA Wolf, DD Awschalom, RA Buhrman, JM Daughton, von S von Molnár, ML Roukes, A Yu Chtchelkanova, DM Treger, Spintronics: A Spin-Based Electronics Vision for the Future Science. ,vol. 294, pp. 1488- 1495 ,(2001) , 10.1126/SCIENCE.1065389
Alexander V. Khaetskii, Daniel Loss, Leonid Glazman, Electron spin decoherence in quantum dots due to interaction with nuclei. Physical Review Letters. ,vol. 88, pp. 186802- ,(2002) , 10.1103/PHYSREVLETT.88.186802
T. A. Kennedy, A. Shabaev, M. Scheibner, Al. L. Efros, A. S. Bracker, D. Gammon, Optical initialization and dynamics of spin in a remotely doped quantum well Physical Review B. ,vol. 73, pp. 045307- ,(2006) , 10.1103/PHYSREVB.73.045307
I. A. Merkulov, Al. L. Efros, M. Rosen, Electron spin relaxation by nuclei in semiconductor quantum dots Physical Review B. ,vol. 65, pp. 205309- ,(2002) , 10.1103/PHYSREVB.65.205309
A. Greilich, M. Schwab, T. Berstermann, T. Auer, R. Oulton, D. R. Yakovlev, M. Bayer, V. Stavarache, D. Reuter, A. Wieck, Tailored quantum dots for entangled photon pair creation Physical Review B. ,vol. 73, pp. 045323- ,(2006) , 10.1103/PHYSREVB.73.045323
W. A. Coish, Daniel Loss, Hyperfine interaction in a quantum dot: Non-Markovian electron spin dynamics Physical Review B. ,vol. 70, pp. 195340- ,(2004) , 10.1103/PHYSREVB.70.195340
A. Bracker, E. Stinaff, D. Gammon, M. Ware, J. Tischler, A. Shabaev, Al. Efros, D. Park, D. Gershoni, V. Korenev, I. Merkulov, Optical pumping of the electronic and nuclear spin of single charge-tunable quantum dots. Physical Review Letters. ,vol. 94, pp. 047402- ,(2005) , 10.1103/PHYSREVLETT.94.047402
Miro Kroutvar, Yann Ducommun, Dominik Heiss, Max Bichler, Dieter Schuh, Gerhard Abstreiter, Jonathan J. Finley, Optically programmable electron spin memory using semiconductor quantum dots Nature. ,vol. 432, pp. 81- 84 ,(2004) , 10.1038/NATURE03008
Jason R Petta, Alexander Comstock Johnson, Jacob M Taylor, Edward A Laird, Amir Yacoby, Mikhail D Lukin, Charles M Marcus, Micah P Hanson, Arthur C Gossard, Coherent manipulation of coupled electron spins in semiconductor quantum dots. Science. ,vol. 309, pp. 2180- 2184 ,(2005) , 10.1126/SCIENCE.1116955
A. Imamog¯lu, D. D. Awschalom, G. Burkard, D. P. DiVincenzo, D. Loss, M. Sherwin, A. Small, Quantum information processing using quantum dot spins and cavity QED Physical Review Letters. ,vol. 83, pp. 4204- 4207 ,(1999) , 10.1103/PHYSREVLETT.83.4204