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Marion
  • Member for 7 years, 10 months
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111 votes
4 answers
16k views

Intuitively, why are bundles so important in Physics?

  • 30.1k
60 votes
2 answers
14k views

How do I construct the $SU(2)$ representation of the Lorentz Group using $SU(2)\times SU(2)\sim SO(3,1)$ ?

  • 1,457
56 votes
5 answers
19k views

What does it mean for a Hamiltonian or system to be gapped or gapless?

  • 1,443
43 votes
1 answer
2k views

What, to a physicist, are instantons and the Donaldson invariants?

27 votes
2 answers
2k views

Does the existence of instantons imply non-trivial cohomology of spacetime?

  • 108k
27 votes
6 answers
7k views

Is gravity an entropic force after all?

  • 4,934
20 votes
2 answers
3k views

Diffeomorphism group vs. $\operatorname{GL}(4,\mathbb{R})$ in General Relativity

  • 2,051
19 votes
2 answers
1k views

Topological twists of SUSY gauge theory

18 votes
3 answers
5k views

Group Theory in General Relativity

  • 11.9k
18 votes
3 answers
3k views

Global vs. local gauge group in mathematical sense - physics examples?

  • 1,337
18 votes
1 answer
297 views

Instanton Moduli Space with a Surface Operator

14 votes
2 answers
2k views

Superconformal theories

  • 4,381
12 votes
1 answer
1k views

Can massive fermions have zero modes?

11 votes
2 answers
2k views

$(\frac{1}{2},\frac{1}{2})$ representation of $SU(2)\otimes SU(2)$

  • 24.4k
10 votes
2 answers
2k views

Elliptic genus; What is it within string/M-theory?

  • 2,051
10 votes
1 answer
3k views

Bloch-sphere-like representation of two-qubit density operators

10 votes
3 answers
1k views

Runge Kutta Method for a Lindblad Equation

9 votes
1 answer
927 views

Why holographic renormalization?

  • 2,051
9 votes
1 answer
3k views

Difference between Fock space and Hilbert Space

  • 1,219
8 votes
1 answer
982 views

How can I understand instantons as sheaves?

  • 2,051
5 votes
1 answer
710 views

Do Killing spinors know global information?

5 votes
1 answer
144 views

Obstruction in calculating $\mathcal{Z}_{\mathcal{N}=1}$ SYM partition function

  • 2,051
4 votes
2 answers
423 views

Why the CMB has not been dispersed so far?

2 votes
1 answer
2k views

Explain firewall paradox for blackholes in layman terms

1 vote
1 answer
674 views

Calculus of variations and string theory

  • 2,173
1 vote
1 answer
249 views

What exactly are the ADE type of gauge theories?

  • 2,051