Mathematical Physics and String Theory

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Strongly coupled electron systems from holography and the Birth and Collapse of anti-de-Sitter stars

Koenraad Schalm (Leiden University)

29.11.2012 at 16:15

The application of the holographic AdS/CFT correspondence to condensed
matter systems has shown us remarkable new insights into strongly coupled
quantum matter. It provides a novel quantum critical origin of superconductivity
that lies outside BCS theory; and it is holographically able to describe non-
Fermi liquids as directly observed in experiments in strongly correlated
electron systems. In the pursuit of a holographic construction as close to a real
quantum critical electron system as possible, I will discuss how the inherent
quantum nature of bulk AdS fermions, dual to 1/N corrections in the field
theory, is essential to capture the correct physics, and show how the descent
of the strongly coupled fermi state into the novel holographic superconductor is
described by the collapse of a "star" in anti-de-Sitter space.

Arnold Sommerfeld Center
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Room 348/349