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A square lattice algebraic spin liquid with SO(5) symmetry
Cenke Xu, Subir Sachdev
We propose a critical spin liquid ground state for S=1/2 antiferromagnets on the square lattice. In a renormalization group analysis of the `staggered flux' algebraic spin liquid,…
Insulator-metal transition on the triangular lattice
Yang Qi, Subir Sachdev
Mott insulators with a half-filled band of electrons on the triangular lattice have been recently studied in a variety of organic compounds. All of these compounds undergo transiti…
Quantum magnetism and criticality
Subir Sachdev
Magnetic insulators have proved to be fertile ground for studying new types of quantum many body states, and I survey recent experimental and theoretical examples. The insights and…
Valence bond solid order near impurities in two-dimensional quantum antiferromagnets
Max A. Metlitski, Subir Sachdev
Recent scanning tunnelling microscopy (STM) experiments on underdoped cuprates have displayed modulations in the local electronic density of states which are centered on a Cu-O-Cu…
Theory of Néel and Valence-Bond-Solid Phases on the Kagome Lattice of Zn-paratacamite
Michael J. Lawler, Lars Fritz, Yong Baek Kim +1
Recently, neutron scattering data on powder samples of Zn-paratacamite, ZnCu(OH)Cl, with small Zn concentration has been interpreted as evidence for valence b…
Theory of the Nernst effect near quantum phase transitions in condensed matter, and in dyonic black holes
Sean A. Hartnoll, Pavel K. Kovtun, Markus Mueller +1
We present a general hydrodynamic theory of transport in the vicinity of superfluid-insulator transitions in two spatial dimensions described by "Lorentz"-invariant quantum critica…