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The Perfect Atom: Bound States of Supersymmetric Quantum Electrodynamics
Christopher P. Herzog, Thomas Klose
We study hydrogen-like atoms in N=1 supersymmetric quantum electrodynamics with an electronic and a muonic family. These atoms are bound states of an anti-muon and an electron or t…
Emergent Quantum Near-Criticality from Baryonic Black Branes
Christopher P. Herzog, Igor R. Klebanov, Silviu S. Pufu +1
We find new black 3-brane solutions describing the "conifold gauge theory" at nonzero temperature and baryonic chemical potential. Of particular interest is the low-temperature lim…
Superconductors from Superstrings
Steven S. Gubser, Christopher P. Herzog, Silviu S. Pufu +1
We establish that in a large class of strongly coupled 3+1 dimensional N=1 quiver conformal field theories with gravity duals, adding a chemical potential for the R-charge leads to…
Sound modes in holographic superfluids
Christopher P. Herzog, Amos Yarom
Superfluids support many different types of sound waves. We investigate the relation between the sound waves in a relativistic and a non-relativistic superfluid by using hydrodynam…
Lectures on Holographic Superfluidity and Superconductivity
Christopher P. Herzog
Four lectures on holography and the AdS/CFT correspondence applied to condensed matter systems. The first lecture introduces the concept of a quantum phase transition. The second l…
The Second Sound of SU(2)
Christopher P. Herzog, Silviu S. Pufu
Using the AdS/CFT correspondence, we calculate the transport coefficients of a strongly interacting system with a non-abelian SU(2) global symmetry near a second order phase transi…