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A non-abelian spin-liquid in a spin-1 quantum magnet
Tarun Grover, T. Senthil
We study a time-reversal invariant non-abelian spin-liquid state in an symmetric spin quantum magnet on a triangular lattice. The spin-liquid is obtained by quantu…
Twisted Hubbard Model for Sr2IrO4: Magnetism and Possible High Temperature Superconductivity
Fa Wang, T. Senthil
Sr2IrO4 has been suggested as a Mott insulator from a single J_eff=1/2 band, similar to the cuprates. However this picture is complicated by the measured large magnetic anisotropy…
Charge Friedel oscillations in a Mott insulator
David F. Mross, T. Senthil
When a metal undergoes a transition to an insulator it will lose its electronic Fermi surface. Interestingly in some situations a `ghost' Fermi surface of electrically neutral spin…
Correlated Topological Insulators and the Fractional Magnetoelectric Effect
Brian Swingle, Maissam Barkeshli, John McGreevy +1
Topological insulators are characterized by the presence of gapless surface modes protected by time-reversal symmetry. In three space dimensions the magnetoelectric response is des…
A controlled expansion for certain non-Fermi liquid metals
David F. Mross, John McGreevy, Hong Liu +1
The destruction of Fermi liquid behavior when a gapless Fermi surface is coupled to a fluctuating gapless boson field is studied theoretically. This problem arises in a number of d…