Charge and current orders in the spin-fermion model with overlapping hot spots
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DOI: 10.1103/physrevb.97.165125
Abstract: Experiments carried over the last years on the underdoped cuprates have revealed a variety of symmetry-breaking phenomena in the pseudogap state. Charge-density waves, breaking of $C_{4}$ rotational symmetry as well as time-reversal symmetry breaking have… read more here.
Keywords: fermion model; current orders; model overlapping; overlapping hot ... See more keywords
Dynamical Lorentz symmetry breaking in a 4D massless four-fermion model
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review D"
DOI: 10.1103/physrevd.96.065021
Abstract: In this paper, we study the spontaneous Lorentz symmetry breaking for a four-dimensional massless four-fermion model. Our methodology is based on use of the rationalized propagator. We show that a bumblebee potential arises as a… read more here.
Keywords: lorentz symmetry; fermion model; four fermion; symmetry breaking ... See more keywords