J4 ›› 2009, Vol. 26 ›› Issue (4): 477-481.

• Semiconductor • Previous Articles     Next Articles

Influence of temperature on the mean number of phonons for strong-coupling magnetopolaron in an asymmetric quantum dot

E Er-Dui-Chao-Lu1, Wang-Bao-Chang2   

  1. 1 Institute of Condensed matter Physics, Hebei Normal University of Science & Technology, Qinhuangdao 066004, China; 
    2 Department of Mass Media, Qinhuangdao Foreign Language Professional College, Qinhuangdao 066311, China
  • Received:2008-08-24 Revised:2008-10-22 Published:2009-07-28 Online:2009-06-29

Abstract:

Influence of temperature on the mean number of phonons for strong-coupling magnetopolaron in an asymmetric quantum dot are studied by using the Huybrechts’ linear combination operator and the LLP variational method. Numerical results indicate that the mean number of phonons for strong-coupling magnetopolaron will decrease with increasing temperature. The changes of the mean number of phonons of magnetopolaron changing with the transverse effective confinement strength, longitudinal effective confinement strength, cyclotron frequency and the electron-phonon coupling strength are strongly related to the temperature.

Key words: quantum optics, mean number of phonons, linear combination operator method, asymmetry quantum dot, strong-coupling magnetopolaron, temperature properties

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