Variational Calculation for Large Bipolarons in Arbitrary Dimensions

Chin. Phys. Lett.

1994, Vol. 11

Issue (6): 361-364 DOI:

Original Articles

Variational Calculation for Large Bipolarons in Arbitrary Dimensions

CHEN Qinghu;WAN Shaolong;WANG Kelin

Center for Fundamental Physics, University of Science and Technology of China, Hefei 230026

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CHEN Qinghu, WAN Shaolong, WANG Kelin 1994 Chin. Phys. Lett. 11 361-364

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Abstract The calculation model of the large bipolaron binding energy proposed by Verbist et al. is extended to arbitrary dimensions including fractal dimensions. It is found that the fractal dimension D = 1.25 corresponds to the lowest critical coupling constant α_c = 1.9, D = 1.73 corresponds to the highest critical ratio of dielectric constants η_c = 0.163, and when D ≤ 1.145 bipolarons can not exist for any coupling constants and ratios of dielectric constants.

Keywords: 71.38.+i 63.20.Kr

Published: 01 June 1994

PACS:	71.38.+i
	63.20.Kr

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1994/V11/I6/0361

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	WAN Shaolong
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