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Eric Rowell's user avatar
Eric Rowell's user avatar
Eric Rowell
  • Member for 14 years, 6 months
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How does one relate the monodromy of the KZ equations with the WRT representation of the braid group?
Probably Turaev's book would have this. Briefly, consider the disk with n punctures each labeled with the object $V$ and the boundary labelled by the object $V_i$. The modular functor of the corresponding TQFT assigns to this surface the vector space $\mathrm{Hom}(V_i,V^{\otimes n})$. From the Jones polynomial/Temperley-Lieb algebra perspective these are the irreducible $TL_n(q)$-modules. So the direct sum of these is the minimal faithful module that one can use to define the Jones polynomial (this by $q$-Schur-Weyl duality).
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How does one relate the monodromy of the KZ equations with the WRT representation of the braid group?
Can this be phrased in the quantum group setting? Something like comparing the $B_n$ representations on $V^{\ot n}$ where $V$ is a $U_q sl_2$ module and the $B_n$ representations from the mapping of $\mathbb{C}B_n$ in $End(V^{\ot n})$? To get a Hilbert space I think you need the root of unity case (and indeed, if you are fixing a level then this is the case). If so, I can give you an answer.
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Textbook recommendations for undergraduate proof-writing class
Thanks! I really like Taylor's notes. I will definitely include this as an extra resource if only for the advice in the appendices.
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Textbook recommendations for undergraduate proof-writing class
The course is mostly for math majors, but also fulfills a university requirement for a "writing-intensive" course so some science/engineering students take it too (at their own peril!). So it is part structure of proofs and part "math appreciation."
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Textbook recommendations for undergraduate proof-writing class
I just might do this after I teach it a couple more times (and get tenure!)
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(How) is category theory actually useful in actual physics?
@Peter: Zhenghan Wang's CBMS monograph "Topological Quantum Computation" is now available from the AMS and might fit the bill as a recent survey--particularly chapters 6 and 8 deal with this subject.
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