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2018 | 133 | 3 | 748-750
Article title

Dynamics of a Charge Qubit Encoded in a Double Quantum Dot

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EN
Abstracts
EN
We study the short time dynamics of a charge qubit encoded in two coherently coupled quantum dots connected to external electrodes. In the regime of sequential tunneling the waiting time distribution is used to investigate in details statistics of the tunneling events and their correlations. We show that the coherent rotation of the qubit state on the Bloch sphere can be seen in tunneling events when an electron is injected and leave the system. Decoherence, relaxation of the qubit state as well as leakage processes are studied by means of transient currents.
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Year
Volume
133
Issue
3
Pages
748-750
Physical description
Dates
published
2018-03
Contributors
author
  • Institute of Molecular Physics, Polish Academy of Sciences, Mariana Smoluchowskiego 17, 60-179 Poznań, Poland
author
  • Institute of Molecular Physics, Polish Academy of Sciences, Mariana Smoluchowskiego 17, 60-179 Poznań, Poland
References
  • [1] K.D. Petersson, J.R. Petta, H. Lu, A.C. Grossard, Phys. Rev. Lett. 105, 246804 (2010), doi: 10.1103/PhysRevLett.105.246804
  • [2] V. Srinivasa, J.M. Taylor, Phys. Rev. B 92, 235301 (2015), doi: 10.1103/PhysRevB.92.235301
  • [3] L. Gaudreau, G. Granger, A. Kam, G.C. Aers, S.A. Studenikin, P. Zawadzki, M. Pioro-Ladriere, Z.R. Wasilewski, A.S. Sachrajda, Nature Phys. 8, 54 (2012), doi: 10.1038/nphys2149
  • [4] D. Vion, A. Aassime, A. Cottet, P. Joyez, H. Pothier, C. Urbina, D. Esteve, M.H. Devoret, Science 296, 886 (2002), doi: 10.1126/science.1069372
  • [5] G. Shinkai, T. Hayashi, T. Ota, T. Fujisawa, Phys. Rev. Lett. 103, 056802 (2009), doi: 10.1103/PhysRevLett.103.056802
  • [6] T. Brandes, Ann. Phys. (Berlin) 17, 477 (2008), doi: 10.1002/andp.200810306
  • [7] M. Busl, G. Platero, Phys. Rev. B 82, 205304 (2010), doi: 10.1103/PhysRevB.82.205304
Document Type
Publication order reference
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YADDA identifier
bwmeta1.element.bwnjournal-article-appv133n3p126kz
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