Comment on “A new integrable two-parameter model of strongly correlated electrons in one dimension”

Author: Hibberd K. E.  

Publisher: Edp Sciences

E-ISSN: 1286-4854|34|8|635-636

ISSN: 0295-5075

Source: EPL (EUROPHYSICS LETTERS), Vol.34, Iss.8, 2010-03, pp. : 635-636

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

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Abstract


In a recent letter [Bariev R. Z., Klümper A. and Zittartz J., Europhys. Lett. bf 32, 1995, 85.], a Hamiltonian for a system of correlated electrons in one-dimension was presented. (...)
The objective of this comment is to make it apparent that the above model, with appropriate modifications,is the quantum analogue of the supersymmetric U model of ref.[2]. 
[2] Bracken A. J., Gould M. D., Links J. R. and Zhang Y.-Z., Phys. Rev. Lett. 74, 1994, 2768.