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The New Iron Age
(Nature Publishing Group, 2008)
The discovery of a new class of high-temperature superconductors based on iron tests the limits of current theoretical and computational tools for the understanding of strongly correlated systems.
Algebraic Charge Liquids
(Nature Publishing Group, 2008)
High temperature superconductivity emerges in the cuprate compounds upon changing the electron density of an insulator in which the electron spins are antiferromagnetically ordered. A key characteristic of the superconductor ...
Universal Thermal and Electrical Transport Near the Superconductor-Metal Quantum Phase Transition in Nanowires
(American Physical Society, 2008)
We describe the thermal (\(\kappa\)) and electrical (\(\sigma\)) conductivities of quasi-one-dimensional wires, across a quantum phase transition from a superconductor to a metal induced by pair-breaking perturbations. ...
Edge and Impurity Response in Two-Dimensional Quantum Antiferromagnets
(American Physical Society, 2008)
Motivated by recent Monte Carlo simulations of Höglund and Sandvik (arXiv:0808.0408), we study edge response in square lattice quantum antiferromagnets. We use the \(O(3)\) nonlinear σ model to compute the decay asymptotics ...
Infinite Randomness Fixed Point of the Superconductor-Metal Quantum Phase Transition
(American Physical Society, 2008)
We examine the influence of quenched disorder on the superconductor-metal transition, as described by a theory of overdamped Cooper pairs which repel each other. The self-consistent pairing eigenmodes of a quasi-one ...
Collective Cyclotron Motion of the Relativistic Plasma in Graphene
(American Physical Society, 2008)
We present a theory of the finite temperature thermoelectric response functions of graphene in the hydrodynamic regime where electron-electron collisions dominate the scattering. In moderate magnetic fields, the Dirac ...
Dynamics and Transport of the \(Z_2\) Spin Liquid: Application to \(\kappa-(ET)_2Cu_2(CN)_3\)
(American Physical Society, 2009)
We describe neutron scattering, NMR relaxation, and thermal transport properties of \(Z_2\) spin liquids in two dimensions. Comparison to recent experiments on the spin \(S=\frac{1}{2}\) triangular lattice antiferromagnet ...
Quantum Oscillations and Black Hole Ringing
(American Physical Society, 2009)
We show that strongly coupled field theories with holographic gravity duals at finite charge density and low temperatures can undergo de Haas–van Alphen quantum oscillations as a function of an external magnetic field. ...
Signatures of the Nematic Ordering Transitions in the Thermal Conductivity of D-wave Superconductors
(American Physical Society, 2009)
We study experimental signatures of the Ising nematic quantum phase transition in d-wave superconductors, associated with the change of lattice symmetry from tetragonal to orthorhombic in the superconducting state. The ...
Theory of the Nodal Nematic Quantum Phase Transition in Superconductors
(American Physical Society, 2008)
We study the character of an Ising nematic quantum phase transition deep inside a \(d\)-wave superconducting state with nodal quasiparticles in a two-dimensional tetragonal crystal. We find that, within a \(1∕N\) expansion, ...