Formation of Large Bipolarons

Chin. Phys. Lett.

1997, Vol. 14

Issue (8): 601-604 DOI:

Original Articles

Formation of Large Bipolarons

CHEN Qing-hu;REN Yu-hang;JIAO Zheng-kuan;ZHANG Qi-rui

Department of Physics, Zhejiang University, Hangzhou 310027

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CHEN Qing-hu, REN Yu-hang, JIAO Zheng-kuan et al 1997 Chin. Phys. Lett. 14 601-604

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Abstract A variational approach is presented to calculate the ground-state energy of large bipolarons in two and three dimensions. The values of the critical coupling constant α_c above which the bipolaron is stable and the critical ratio of dielectric constants η_c below which the bipolaron is stable are approximately evaluated. It is found that the stability region of bipolarons in the (l/α, η )-plane becomes larger with decreasing dimensionality.

Keywords: 71.38.+i 63.20.Kr

Published: 01 August 1997

PACS:	71.38.+i
	63.20.Kr

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1997/V14/I8/0601

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	CHEN Qing-hu
	REN Yu-hang
	JIAO Zheng-kuan
	ZHANG Qi-rui

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