Journal
Article title
Authors
Title variants
Languages of publication
Abstracts
We study theoretically the process of a weak measurement of charge states in a double quantum dot performed by coupling to a quantum point contact. We focus on the interplay of the measurement process with phonon-induced dephasing of delocalized superpositions of electron states and compare the time scales relevant for the dynamics of the open system and for the measurement process: the decoherence rate, the localization rate of the state conditioned on the measurement outcome and the time scale on which information on the system state is gained in the process of the measurement.
Discipline
Journal
Year
Volume
Issue
Pages
640-643
Physical description
Dates
published
2011-05
Contributors
author
- Institute of Physics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
author
- Institute of Physics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
References
- 1. A.C. Johnson, J.R. Petta, J.M. Taylor, A. Yacoby, M.D. Lukin, C.M. Marcus, M.P. Hanson, A.C. Gossard, Nature 435, 925 (2005)
- 2. T. Fujisawa, T. Hayashi, R. Tomita, Y. Hirayama, Science 312, 1634 (2006)
- 3. T.M. Stace, S.D. Barrett, Phys. Rev. Lett. 92, 136802 (2004)
- 4. A.N. Korotkov, Phys. Rev. B 60, 5737 (1999)
- 5. A. Korotkov, D. Averin, Phys. Rev. B 64, 165310 (2001)
- 6. H.-S. Goan, G. Milburn, Phys. Rev. B 64, 235307 (2001)
- 7. H.-S. Goan, G. Milburn, H. Wiseman, H.B. Sun, Phys. Rev. B 63, 125326 (2001)
- 8. D. Averin, E. Sukhorukov, Phys. Rev. Lett. 95, 126803 (2005)
- 9. D. Averin, A. Korotkov, Phys. Rev. Lett. 94, 069701 (2005)
- 10. P. Machnikowski, Phys. Rev. Lett. 96, 140405 (2006)
- 11. J. Bylander, T. Duty, P. Delsing, Nature 434, 361 (2005)
- 12. M.C. Cassidy, A.S. Dzurak, R.G. Clark, K.D. Petersson, I. Farrer, D.A. Ritchie, C.G. Smith, Appl. Phys. Lett. 91, 222104 (2007)
- 13. T.M. Stace, S.D. Barrett, arXiv:cond-mat/0309610v2 (unpublished)
- 14. H.-P. Breuer, F. Petruccione, The Theory of Open Quantum Systems, Oxford University Press, Oxford 2002
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv119n520kz