Chinese Journal of Quantum Electronics, Volume. 28, Issue 4, 483(2011)
Effect of spin on ground-state energy of weak-coupled bound magnetopolaron in asymmetry quantum dot
The properties of bound magnetopolaron, which is weakly coupled to LO-phonon in an asymmetric quantum dot (QD) were studied by using Tokuda modified linear combination operator and unitary transformation methods. The expression of ground-state energy as functions of the transverse and longitudinal confinement lengths and magnetic field was derived. After a simple numerical calculation, it’s found that the ground-state energy of bound magnetopolaron splits into two branches after taking the spin influence into account. The ground-state energy and spin-up(down) splitting energy decrease with increasing the transverse and longitudinal confinement lengths, and they are increasing functions of magnetic field.
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Wang Xiao-wu, XIAO Juan, LI Jian-hong, LI Zhi-xin. Effect of spin on ground-state energy of weak-coupled bound magnetopolaron in asymmetry quantum dot[J]. Chinese Journal of Quantum Electronics, 2011, 28(4): 483
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Received: Mar. 11, 2010
Accepted: --
Published Online: Jul. 29, 2011
The Author Email: Xiao-wu Wang (wxw783@sohu.com)