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- W1983812530 abstract "A path-integral for the t–J model in two dimensions is constructed based on Dirac quantization, with an action found originally by Wiegmann [P. Wiegmann, Phys. Rev. Lett. 60 (1988) 821; P. Wiegmann, Nucl. Phys. B 323 (1989) 311]. Concentrating on the low doping limit, we assume short range antiferromagnetic order of the spin degrees of freedom. Going over to a local spin quantization axis of the dopant fermions, that follows the spin degree of freedom, staggered CP1 fields result and the constraint against double occupancy can be resolved. The staggered CP1 fields are split into slow and fast modes, such that after a gradient expansion, and after integrating out the fast modes and the dopant fermions, a CP1 field-theory with a massive gauge field is obtained that describes generically incommensurate coplanar magnetic structures, as discussed previously in the context of frustrated quantum antiferromagnets. Hence, the possibility of deconfined spinons is opened by doping a colinear antiferromagnet." @default.
- W1983812530 created "2016-06-24" @default.
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- W1983812530 date "2008-06-01" @default.
- W1983812530 modified "2023-09-23" @default.
- W1983812530 title "Massive CP1 theory from a microscopic model for doped antiferromagnets" @default.
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- W1983812530 doi "https://doi.org/10.1016/j.nuclphysb.2007.10.025" @default.
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