J4 ›› 2012, Vol. 29 ›› Issue (5): 602-608.

• Semiconductor Opto-electronics • Previous Articles     Next Articles

Influences of Coulomb field on probability density of parabolic linear bound potential quantum dot qubit

CHEN Ying-Jie1, XIAO Jing-Lin2   

  1. 1 College of Physics and Engineering, Qufu Normal University, Qufu 273165, China; 
    2 College of Physics and Electronic Information, Inner Mongolia National University, Tongliao 028043, China
  • Received:2011-09-22 Revised:2011-11-02 Published:2012-09-28 Online:2012-09-02

Abstract:

The Coulomb bound potential effects on the parabolic linear bound potential quantum dot qubit have been studied under the condition of electric-LO-phonon strong coupling using the variational method of Pekar type. The numerical results lead us to formulate the derivative relationship of the probability density of the electron in the superposition state of the ground state and the first-excited state with the Coulomb binding parameter, the confinement length and the electron-LO-phonon coupling strength, respectively.

Key words: quantum optics, coulomb bound potential, variational method of Pekar type, quantum dot, qubit

CLC Number: