QED3 as an effective theory of the pseudogap phase in underdoped cuprates
- Conference date: 2-13 October 2006
- Location: Salerno (Italy)
A version of non‐compact QED in 2+1 dimensions (QED 3), with anisotropies introduced by differing Fermi and gap velocities in the spatial directions has been proposed as an effective theory of the SDW‐pseudogap phase transition in underdoped cuprates at T=0. Preliminary simulations using lattice gauge theory techniques suggest that matters are a little more complicated than previously thought; in particular, measurements of the fermion propagator in Landau gauge indicate that one should be cautious in inferring properties of this form of QED 3 from those of isotropic QED 3.
- Quantum electrodynamic effects
- Lattice gauge theory
- Band gap
- Phase transitions
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