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The Effect of Magnetic on the Properties of a Parabolic Quantum Dot Qubit

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Abstract

On the condition of electric-LO phonon strong coupling in a parabolic quantum dot, we obtained the eigen energies and the eigenfunctions of the ground state and the first excited state by using the variational method of Pekar type. This system in a quantum dot may be employed as a two-level quantum system qubit. When the electron is in the superposition state of the ground state and the first excited state, we obtained the space-time evolution of the electron density. The relations on the cyclotron frequency with the electron probability density and the period of oscillation are derived in a parabolic quantum dot.

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Authors and Affiliations

  1. Department of Physics and Electronic Informational Engineering, Inner Mongolia Chifeng College, Chifeng, 024000, China

    Wei-Ping Li, Ji-Wen Yin, Yi-Fu Yu & Zi-Wu Wang

  2. College of Physics and Electronic Information, Inner Mongolia University for Nationalities, Tongliao, 028043, China

    Jing-Lin Xiao

Authors
  1. Wei-Ping Li
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  2. Ji-Wen Yin
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  3. Yi-Fu Yu
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  4. Zi-Wu Wang
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  5. Jing-Lin Xiao
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Corresponding author

Correspondence to Wei-Ping Li.

Additional information

Project supported by the National Natural Science Foundation of China (Grant No. 10747002) and Inner Mongolia Universities Science Research Item (NJzc08158).

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Li, WP., Yin, JW., Yu, YF. et al. The Effect of Magnetic on the Properties of a Parabolic Quantum Dot Qubit. J Low Temp Phys 160, 112–118 (2010). https://doi.org/10.1007/s10909-010-0180-9

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  • DOI: https://doi.org/10.1007/s10909-010-0180-9

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