Fast sensing of double-dot charge arrangement and spin state with a radio-frequency sensor quantum dot

Physical Review B - Condensed Matter and Materials Physics

Volumn 81, Issue 16, 2010, Pages

  Barthel, C ^a   Kjaergaard M ^a,b   Medford, J ^a   Stopa, M ^a   Marcus, C M ^a   Hanson, M P ^c   Gossard, A C ^c  

^a HARVARD UNIVERSITY   (United States)

^b UNIVERSITY OF COPENHAGEN   (Denmark)

^c University of California   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 77955404814     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.81.161308     Document Type: Article

References (20)

1. R. Hanson, L. P. Kouwenhoven, J. R. Petta, S. Tarucha, and L. M. K. Vandersypen, Rev. Mod. Phys. 79, 1217 (2007). 10.1103/RevModPhys.79.1217
2. M. Field, C. G. Smith, M. Pepper, D. A. Ritchie, J. E. F. Frost, G. A. C. Jones, and D. G. Hasko, Phys. Rev. Lett. 70, 1311 (1993). 10.1103/PhysRevLett. 70.1311
3. T. Ihn, S. Gustavsson, U. Gasser, B. Küng, T. Müller, R. Schleser, M. Sigrist, I. Shorubalko, R. Leturcq, and K. Ensslin, Solid State Commun. 149, 1419 (2009). 10.1016/j.ssc.2009.04.040
4. J. M. Elzerman, R. Hanson, L. H. Willems van Beveren, B. Witkamp, L. M. K. Vandersypen, and L. P. Kouwenhoven, Nature (London) 430, 431 (2004). 10.1038/nature02693
5. C. Barthel, D. J. Reilly, C. M. Marcus, M. P. Hanson, and A. C. Gossard, Phys. Rev. Lett. 103, 160503 (2009). 10.1103/PhysRevLett.103.160503
6. R. J. Schoelkopf, P. Wahlgren, A. A. Kozhevnikov, P. Delsing, and D. E. Prober, Science 280, 1238 (1998). 10.1126/science.280.5367.1238
7. T. M. Buehler, D. J. Reilly, R. P. Starrett, A. D. Greentree, A. R. Hamilton, A. S. Dzurak, and R. G. Clark, Appl. Phys. Lett. 86, 143117 (2005). 10.1063/1.1897423
8. W. Lu, Z. Ji, L. Pfeiffer, K. W. West, and A. J. Rimberg, Nature (London) 423, 422 (2003). 10.1038/nature01642
9. T. Fujisawa, T. Hayashi, Y. Hirayamab, H. D. Cheong, and Y. H. Jeong, Appl. Phys. Lett. 84, 2343 (2004). 10.1063/1.1691491
10. Adjusting V Q 2 and V D to switch between a QPC and a SQD shifts the charge stability diagram by ∼ 30 mV.
11. D. J. Reilly, C. M. Marcus, M. P. Hanson, and A. C. Gossard, Appl. Phys. Lett. 91, 162101 (2007). 10.1063/1.2794995
12. The separation time τ S is stepped from 1 to 200 ns, every 1000 cycles for a total of 30 000 cycles.
13. For QPC1 in Ref., the fit parameters for the histograms are T1 =34μs, τ0 =700ns, and PT ∼0.5
14. A. N. Korotkov and M. A. Paalanen, Appl. Phys. Lett. 74, 4052 (1999). 10.1063/1.123258
15. The contribution from thermal fluctuations to intrinsic sensor noise is negligible. The cryogenic amplifier contributes 60% (40%) of the total noise for SQD (QPC1).
16. H. A. Fertig and B. I. Halperin, Phys. Rev. B 36, 7969 (1987). 10.1103/PhysRevB.36.7969
17. C. W. J. Beenakker, Phys. Rev. B 44, 1646 (1991). 10.1103/PhysRevB.44. 1646
18. The SETE code is available from the National Nanotechnology Infrastructure Network Computation project through www.cns.fas.harvard.edu
19. M. Stopa, Phys. Rev. B 54, 13767 (1996). 10.1103/PhysRevB.54.13767
20. M. Stopa, Phys. Rev. B 48, 18340 (1993). 10.1103/PhysRevB.48.18340