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## Quantum hallographyAdd to your list(s) Download to your calendar using vCal - Semenoff, GW (University of British Columbia)
- Friday 20 September 2013, 16:15-17:00
- Seminar Room 1, Newton Institute.
If you have a question about this talk, please contact Mustapha Amrani. Mathematics and Physics of the Holographic Principle A new holographic description of defect field theories using probe D5 branes is discussed. We consider a system where a large number of probe branes, which are asymptotically D5 branes blow up into a D7 brane suspended in the bulk of anti-de Sitter space. For a particular ratio of charge density to external magnetic field, so that the Landau level filling fraction is exactly one, the D7 brane exhibits an incompressible, charge gapped state with one unit of integer quantized Hall conductivity. We also show that states with integer filling fractions greater than one are multiple D7 branes. We also see that compressible states can be those of D7 rather than D5 branes and we outline what is known about the phase diagram. This talk is part of the Isaac Newton Institute Seminar Series series. ## This talk is included in these lists:- All CMS events
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