Exact Solution for the One-D Spin Fluctuation Model

Chin. Phys. Lett.

1993, Vol. 10

Issue (8): 500-502 DOI:

Original Articles

Exact Solution for the One-D Spin Fluctuation Model

WANG Yupeng;JIN Duo*

CCAST(World Laboratory) Cryogenic Laboratory, Academia Sinica, Beijing 100080 *Cryogenic Laboratory, Academia Sinica, Beijing 100080

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WANG Yupeng, JIN Duo 1993 Chin. Phys. Lett. 10 500-502

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Abstract The exact solutions via Bethe ansatz to the One-D spin fluctuation model for J ＞0 and J ＜0 are presented . The bound states are discussed based on the Bethe ansatz equations. It is shown that the antiferromagnetic spin fluctuation leads to bound states like Cooper pairs and ferromagnetic spin fluctuation to no bound state. Also we point out that our model is much similar to the δ–potential Fermi gas model.

Keywords: 74.40.+k 75.40.-s

Published: 01 August 1993

PACS:	74.40.+k
	75.40.-s	(Critical-point effects, specific heats, short-range order)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1993/V10/I8/0500

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