Quantum-dot spin-state preparation with near-unity fidelity

Science

Volumn 312, Issue 5773, 2006, Pages 551-553

  Atatüre, Mete ^a   Dreiser, Jan ^a   Badolato, Antonio ^a   Högele, Alexander ^a,b   Karrai, Khaled ^b   Imamoglu, Atac ^a  

^a ETH ZURICH   (Switzerland)

^b UNIVERSITY OF MUNICH   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

COOLING; ELECTRON TRANSITIONS; LASER APPLICATIONS; PARAMAGNETIC RESONANCE; RAMAN SCATTERING;

ELECTRON SPIN; LASER COOLING; RESONANT EXCITATION;

SEMICONDUCTOR QUANTUM DOTS;

COOLING; INFORMATION PROCESSING; LASER;

ARTICLE; ELECTRON TRANSPORT; INFORMATION PROCESSING; MAGNETIC FIELD; PHASE TRANSITION; PHOTOLUMINESCENCE; PRIORITY JOURNAL; QUANTUM MECHANICS; SEMICONDUCTOR; SOLID STATE; SPECTROSCOPY;

EID: 33646233461     PISSN: 00368075     EISSN: 10959203     Source Type: Journal    
DOI: 10.1126/science.1126074     Document Type: Article

References (31)

1. P. Michler et al., Science 290, 2282 (2000).
2. C. Santori, D. Fattal, J. Vučković, G. S. Solomon, Y. Yamamoto, Nature 419, S94 (2002).
3. A. Kiraz et al., Appl. Phys. Lett. 78, 3932 (2001).
4. T. D. Happ et al., Phys. Rev. B 66, R041303 (2002).
5. J. P. Reithmaier et al., Nature 432, 197 (2004).
6. T. Yoshie et al., Nature 432, 200 (2004).
7. E. Peter et al., Phys. Rev. Lett. 95, 067401 (2005).
8. A. Zrenner et al., Nature 418, 612 (2002).
9. X. Li et al., Science 301, 809 (2003).
10. A. Imamoǧlu et al., Phys. Rev. Lett. 83, 4204 (1999).
11. D. P. DiVincenzo, Fortschr. Phys. 48, 771 (2000).
12. J. Brossel, A. Kastler, J. Winter, J. Phys. Radium 13, 668 (1952).
13. H. Drexler, D. Leonard, W. Hansen, J. P. Kotthaus, P. M. Petroff, Phys. Rev. Lett. 73, 2252 (1994).
14. R. J. Warburton et al., Nature 405, 926 (2000).
15. B. Alén, F. Bickel, K. Karrai, R. J. Warburton, P. M. Petroff, Appl. Phys. Lett. 83, 2235 (2003).
16. A. Högele et al., Appl. Phys. Lett. 86, 221905 (2005).
17. J. M. Elzerman et al., Nature 430, 431 (2004).
18. M. Kroutvar et al., Nature 432, 81 (2004).
19. T. Calarco, A. Datta, P. Fedichev, E. Pazy, P. Zoller, Phys. Rev. A. 68, 012310 (2003).
20. J. R. Petta et al., Science 309, 2180 (2005).
21. R. Hanson et al., Phys. Rev. Lett. 94, 196802 (2005).
22. All of these measurements were performed on time scales faster than significant dynamical nuclear-spin polarization (29, 30) so as to avoid any alteration of the trionic absorption spectrum. This time scale of ∼300 ms, which corresponds to how long the laser remains resonant with the transition, in turn defined our detection-noise level.
23. A. C. Johnson et al., Nature 435, 925 (2005).
24. nuc.
25. J. M. Smith et al., Phys. Rev. Lett. 94, 197402 (2005).
26. 3 slower than γ. This, in turn, marks a more accurate upper bound of 0.1 KHz.
27. M. V. G. Dutt et al., Phys. Rev. Lett. 94, 227403 (2005).
28. A. Kiraz, M. Atatüre, A. Imamoǧlu, Phys. Rev. A 69, 032305 (2004).
29. S. W. Brown, T. A. Kennedy, D. Gammon, E. S. Snow, Phys. Rev. B 54, R17339 (1996).
30. C. W. Lai, P. Maletinsky, A. Badolato, A. Imamoǧlu, Phys. Rev. Lett., in press.
31. Supported by the National Centers of Competence in Research Quantum Photonics. M.A. and J.D. thank J. Cash for technical assistance.