PKU HEP Seminar and Workshop (北京大学高能物理组)
Stringy quantum geometry
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Asia/Shanghai
B105 (CHEP)
B105
CHEP
West Building, School of Physics, PKU
Description
Around 2010, Liang Kong proposed an interesting notion of viewing 2d conformal field theories as "stringy algebraic geometry". Here we try to generalize such a notion to a 4d "stringy quantum geometry". That this could be possible is due to two important facts: first, in the mathematical construction of (rational) conformal field theories (FRS framework), the local data and the topological structure are in fact separated; secondly, the bulk-boundary correspondence could been concretely categorificated as the "bulk=center" relation, as shown recently by L. Kong and X-G. Wen.
With such a construction we try to answer two questions: what's the topological meaning of the simplicity condition which formally deforms the BF theory to general relativity? how the Bekenstein-Hawking formula for the black hole entropy is achieved?
