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cond-mat.str-el2001
Quantum Phases of the Shastry-Sutherland Antiferromagnet
C. H. Chung, J. B. Marston, Subir Sachdev
We study possible paramagnetic phases of antiferromagnets on the Shastry-Sutherland lattice by a gauge-theoretic analysis of fluctuations in a theory with Sp(2N) symmetry. In addit…
cond-mat.str-el2000
Spin orthogonality catastrophe in two-dimensional antiferromagnets and superconductors
Subir Sachdev, Matthias Troyer, Matthias Vojta
We compute the spectral function of a spin S hole injected into a two-dimensional antiferromagnet or superconductor in the vicinity of a magnetic quantum critical point. We show th…