Göttingen 2012 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 22: Quantenfeldtheorie
T 22.6: Vortrag
Mittwoch, 29. Februar 2012, 18:00–18:15, VG 3.101
Towards a Holographic Realization of Homes’ Law — Martin Ammon1, Johanna Erdmenger2, •Steffen Müller2, Andy O’Bannon3, and Patrick Kerner2 — 1Department of Physics and Astronomy, UCLA, Los Angeles, CA 90095, United States — 2Max-Planck-Institut für Physik, 80805 München — 3DAMTP, University of Cambridge, Cambridge CB3 0WA, United Kingdom
In recent years there has been much experimental progress on novel types of strongly correlated quantum matter, but a theoretical framework to describe these interesting systems is still missing. The Gauge/Gravity Duality has proved to be a very successful tool for describing strongly coupled systems in particle physics. Thus, the application of the Gauge/Gravity Duality to conformal quantum matter is a promising candidate to explain questions concerning non-zero temperature dynamics and transport coefficients. In particular high Tc superconductors, as well as some conventional superconductors, exhibit an universal scaling relation called Homes’ Law between the superfluid density at zero temperature and the product of the conductivity and temperature at the critical temperature. This universal behavior may be linked to the “Planckian dissipation” giving rise to a perfect fluid description of the “strange metal phase” with possible universal behavior, comparable to the viscosity of the quark-gluon plasma. In this work we describe progress in employing the models of holographic superconductors to realize Homes’ Law and to find a universal relation governing strongly correlated quantum matter.