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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…
Universal thermal and electrical transport near the superconductor-metal quantum phase transition in nanowires
Adrian del Maestro, Bernd Rosenow, Nayana Shah +1
We describe the thermal and electrical conductivities of quasi-one dimensional wires, across a quantum phase transition from a superconductor to a metal induced by pairbreaking per…
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…
Coulomb impurity in graphene
Rudro R. Biswas, Subir Sachdev, Dam T. Son
We consider the problem of screening of an electrically charged impurity in a clean graphene sheet. When electron-electron interactions are neglected, the screening charge has a si…