Browsing by Author "Hofman, Diego"
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Chiral Scale and Conformal Invariance in 2D Quantum Field Theory
Hofman, Diego M.; Strominger, Andrew E. (American Physical Society, 2011)It is well known that a local, unitary Poincaré-invariant 2D quantum field theory with a global scaling symmetry and a discrete non-negative spectrum of scaling dimensions necessarily has both a left and a right local ... -
Quantum Critical Response at the Onset of Spin Density Wave Order in Two-dimensional Metals
Hartnoll, Sean; Hofman, Diego; Metlitski, Max; Sachdev, Subir (American Physical Society, 2011)We study the frequency dependence of the electron self-energy and the optical conductivity in a recently developed field theory of the spin-density-wave quantum phase transition in two-dimensional metals. We focus on the ...