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Electronic Liquid Crystal Phases of a Doped Mott Insulator
S. A. Kivelson, E. Fradkin, V. J. Emery
The character of the ground state of an antiferromagnetic insulator is fundamentally altered upon addition of even a small amount of charge. The added charges agglomerate along dom…
How to observe distinct universal conductances in tunneling to quantum Hall states: having the right contacts
Claudio de C. Chamon, Eduardo Fradkin
We show that different universal values can be obtained for the two-terminal conductance of a fractional quantum Hall state. At large voltages, or strong coupling, the conductance…
Modular Invariance, Self-Duality and The Phase Transition Between Quantum Hall Plateaus
Eduardo Fradkin, Steven Kivelson
We investigate the problem of the superuniversality of the phase transition between different quantum Hall plateaus. We construct a set of models which give a qualitative descripti…
Kondo effect in flux phases
Carlos R. Cassanello, Eduardo Fradkin
We consider a band of fermions in two space dimensions with a flux phase (relativistic) dispersion relation coupled to a local magnetic impurity via an interaction. This mod…
Exact effective action for fermions in one dimension with backscattering at a boundary
Manuel Fuentes, Ana Lopez, Eduardo Fradkin
We report exact results for the partition function for free Dirac fermions on a half line with physically sensible boundary conditions. An exact effective action for general backsc…
Bosonization rules in dimensions
Manuel Fuentes, Ana Lopez, Eduardo Fradkin +1
We derive the bosonization rules for free fermions on a half-line with physically sensible boundary conditions for Luttinger fermions. We use path-integral methods to calculate the…