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Quantum Phase Transitions and Conserved Charges
Subir Sachdev
The constraints on the scaling properties of conserved charge densities in the vicinity of a zero temperature (), second-order quantum phase transition are studied. We introduce…
Universal Magnetic Properties of Frustrated Quantum Antiferromagnets in Two Dimensions
A. V. Chubukov, T. Senthil, S. Sachdev
We present a theory of frustrated, two-dimensional, quantum antiferromagnets in the vicinity of a quantum transition from a non-collinear, magnetically-ordered ground state to a qu…
Quantum Phases of the Shraiman-Siggia Model
Subir Sachdev
We examine phases of the Shraiman-Siggia model of lightly-doped, square lattice quantum antiferromagnets in a self-consistent, two-loop, interacting magnon analysis. We find magnet…
Polylogarithm Identities in a Conformal Field Theory in Three Dimensions
Subir Sachdev
The vector model is a solvable, interacting field theory in three dimensions (). In a recent paper with A. Chubukov and J. Ye~\cite{self}, we have computed a u…