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26 April 2024 |
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Connection between the Slave-Particles and X-Operators Path-Integral Representations. a New Perturbative Approach | | A.Foussats
; A. Greco
; C.Repetto
; O.P.Zandron
; O.S.Zandron
; | | Date: |
3 Jul 2000 | | Subject: | Strongly Correlated Electrons | cond-mat.str-el | | Abstract: | In the present work it is shown that the family of first-order Lagrangians for the t-J model and the corresponding correlation generating functional previously found can be exactly mapped into the slave-fermion decoupled representation. Next, by means of the Faddeev-Jackiw symplectic method, a different family of Lagrangians is constructed and it is shown how the corresponding correlation generating functional can be mapped into the slave-boson representation. Finally, in order to define the propagation of fermion modes we discuss two alternative ways to treat the fermionic sector in the path-integral formalism for the t-J model. | | Source: | arXiv, cond-mat/0007018 | | Services: | Forum | Review | PDF | Favorites | |
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