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Electron Spin Decoherence in Quantum Dots due to Interaction with Nuclei
Open accessAbstract
We study the decoherence of a single electron spin in an isolated quantum dot induced by hyperfine interaction with nuclei. The decay is caused by the spatial variation of the electron wave function within the dot, leading to a nonuniform hyperfine coupling A. We evaluate the spin correlation function and find that the decay is not exponential but rather power (inverse logarithm) lawlike. For polarized nuclei we find an exact solution and show that the precession amplitude and the decay behavior can be tuned by the magnetic field. The decay time is given by (planck)N/A, where N is the number of nuclei inside the dot, and the amplitude of precession decays to a finite value. We show that there is a striking difference between the decoherence time for a single dot and the dephasing time for an ensemble of dots.
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Citations
Cites
Quantum computation with quantum dots
Loss, D., & DiVincenzo, D. P. (1998) · Physical Review A · doi:10.1103/physreva.57.120 · Cited by 6,840
Self-citation
Cited by
Coherent manipulation of single spins in semiconductors
Hanson, R., & Awschalom, D. D. (2008) · Nature · doi:10.1038/nature07129 · Cited by 503
Naber, W. J. M., Faez, S., & Wiel, W. G. V. D. (2007) · Journal of Physics D: Applied Physics · doi:10.1088/0022-3727/40/12/r01 · Cited by 459
Mode Locking of Electron Spin Coherences in Singly Charged Quantum Dots
Greilich, A., Yakovlev, D. R., Shabaev, A., Efros, A. L., Yugova, I. A., Oulton, R., Stavarache, V., Reuter, D., Wieck, A., & Bayer, M. (2006) · Science · doi:10.1126/science.1128215 · Cited by 444
Measures and dynamics of entangled states
Mintert, F., Carvalho, A. R. R., Kuś, M., & Buchleitner, A. (2005) · Physics Reports · doi:10.1016/j.physrep.2005.04.006 · Cited by 420
Nuclear spin physics in quantum dots: An optical investigation
Urbaszek, B., Marie, X., Amand, T., Krebs, O., Voisin, P., Maletinsky, P., Högele, A., & Imamoglu, A. (2013) · Reviews of Modern Physics · doi:10.1103/revmodphys.85.79 · Cited by 375
Metadata
- Authors
- Khaetskii, A. V., Loss, D., & Glazman, L.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2002-04-19
- Volume
- 88
- Issue
- 18
- Pages
- 186802-186802
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W1976671548
- Cited by
- 794
- References
- 1
- FWCI
- 21.04
- Type
- journal article
- Language
- en
- Open access
- green
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- Khaetskii, A. V., Loss, D., & Glazman, L. (2002). Electron Spin Decoherence in Quantum Dots due to Interaction with Nuclei. Physical Review Letters. https://doi.org/10.1103/physrevlett.88.186802
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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