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I am a postdoc in maths with a degree in theoretical physics. I am interested in mathematical structures in quantum field theory and string theory, see here.
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Apr 5 
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Apr 2 
awarded  Nice Question 
Apr 1 
answered  NCG with all noncommutativity in a nilpotent ideal 
Apr 1 
comment 
NCG with all noncommutativity in a nilpotent ideal
Well, I suppose a crucial difference of supergeometry is that the grading group is finite cyclic. Any thoughts on that in the E_n conext or more generally in the context of the above question? 
Apr 1 
comment 
NCG with all noncommutativity in a nilpotent ideal
Thanks, excellent. I suppose I should have been aware of this. The thesis in chapter 4 has just what I have been after here. Did anyone have any substantial thoughts on the perspective of regarding this as generalized supergeometry? For instance Deligne's theorem ncatlab.org/nlab/show/Deligne+theorem+on+tensor+categories is suggesting higher versions with symmetric monoidal 1categories replaced by symmetric monoidal (oo,n)categories. Deligne finds that supergroups are the Tannakian dual for n=1 (subject to a nicety condition). Can one find "E_ngroups" as the dual in the higher case? 
Apr 1 
asked  NCG with all noncommutativity in a nilpotent ideal 
Apr 1 
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Mar 31 
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What is the conceptual significance of supercommutativity?
Just for the record, here are more references: ncatlab.org/nlab/show/Deligne%27s+theorem+on+tensor+categories 
Mar 23 
awarded  Nice Answer 
Mar 11 
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Feb 23 
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How to write BRSTBV for dgLie?
ncatlab.org/schreiber/show/derived+critical+locus 
Feb 20 
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The groupoid of algebraic expressions and proofs
@goblin, that seems rather close in spirit to type theory ncatlab.org/nlab/show/type theory . In its flavors as homotopy type theory ncatlab.org/nlab/show/homotopy+type+theory this is precisely about groupoids whose morphisms are proofs of equivalences... and higher groupoids whose higher morphisms are proofs of equivalences of proofs of equivalences, and so on. 
Feb 19 
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space at the Planck scale
No, this is not true for string theory. I have sent an explanation over at PhysicsOverflow: physicsoverflow.org/27295/… 
Feb 6 
answered  Reference request: a guide through quantum probability 
Feb 5 
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consistent orientation for functorial pullpush in generalized cohomology
Ah, right, fixed now. Thanks. 
Feb 5 
revised 
consistent orientation for functorial pullpush in generalized cohomology
fixed trivial typo 
Jan 26 
awarded  Nice Question 
Jan 3 
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Reference Request for TQFTs
For mathematical supersymmetry I recommend the articles by D. Freed listed here ncatlab.org/nlab/show/… particularly the "Five lectures on supersymmetry" ncatlab.org/nlab/show/Five+lectures+on+supersymmetry and his article with Deligne ncatlab.org/nlab/show/supersymmetry#DeligneFreed99 