Date
Fri, 11 Aug 2017
Time
13:00 - 14:00
Location
C1
Speaker
Benedict Morrissey
Organisation
UPenn

Topological field theories (TFT's) are physical theories depending only on the topological properties of spacetime as opposed to also depending on the metric of spacetime.  This talk will introduce topological field theories, and the work of Freed and Hopkins on how a class of TFT's called "invertible" TFT's describe certain states of matter, and are classified by maps of spectra.  Constructions of field theories corresponding to specific maps of spectra will be described.
 

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