Non-Unitary Spin-Charge Separation in One-Dimensional Fermion Gas
Cheianov, Vadim V. ; Zvonarev, M. B.
arXiv, 0308470 / Harvested from arXiv
Text on arXiv
In this Letter we report exact results on the infrared asymptotics of one-particle dynamical correlation function of the gas of impenetrable spin 1/2 fermions at infinitesimal temperature. The correlation function shows signs of spin-charge separation with scaling behavior in the charge part and exponential decay as a function of the space coordinate in the spin part. Surprisingly, the anomalous dimensions in the charge part do not correspond to any unitary conformal field theory. We find that the fermion spectral weight has a power law divergency at low energy with the anomalous exponent $-1/2.$
Publié le : 2003-08-23
Classification:  Condensed Matter - Strongly Correlated Electrons,  Mathematical Physics 
@article{0308470,
     author = {Cheianov, Vadim V. and Zvonarev, M. B.},
     title = {Non-Unitary Spin-Charge Separation in One-Dimensional Fermion Gas},
     journal = {arXiv},
     volume = {2003},
     number = {0},
     year = {2003},
     language = {en},
     url = {http://dml.mathdoc.fr/item/0308470}
}

Cheianov, Vadim V.; Zvonarev, M. B. Non-Unitary Spin-Charge Separation in One-Dimensional Fermion Gas. arXiv, Tome 2003 (2003) no. 0, . http://gdmltest.u-ga.fr/item/0308470/