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58
Why not use the Lagrangian, instead of the Hamiltonian, in nonrelativistic QM?
physics.stackexchange.com

32
Difference between 1PI effective action and Wilsonian effective action?
physics.stackexchange.com

28
Topological insulators: why K-theory classification rather than homotopy classification?
physics.stackexchange.com

24
What is a good introduction to integrable models in physics?
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23
Does the Schrödinger equation apply to spinors?
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21
Topological band structure, difference between a sphere and a donut
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19
Topological order vs. Symmetry breaking: what does (non-)local order parameter mean?
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18
Graphene and Klein bottle?
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16
Simple models that exhibit topological phase transitions
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11
Applications of Algebraic Topology to physics
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10
How is the topological $Z_2$ invariant related to the Chern number? (e.g. for a topological insulator)
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10
Irrelevance of parastatistics for space dimension > 2
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10
The Chern-Simons/WZW correspondence
physics.stackexchange.com

9
Homotopy $\pi_4(SU(2))=\mathbb{Z}_2$
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8
Reading list in topological QFT
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8
topological entanglement entropy for a punctured torus and sphere
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8
Can closed loops evade the spin-statistic theorem in 3 dimensions?
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8
direct sum of anyons?
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8
What does "carry a representation" mean (in SUSY algebra)?
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7
Has the use of the holographic principle of string theory in condensed matter physics silenced the skeptics?
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7
What does AdS/CFT have to say about quantum gravity in our world?
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7
References about rigorous thermodynamics
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7
Is the artificial gauge field a gauge field?
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7
Explicit model of BSU(2) in terms of singular complex
mathoverflow.net

6
Hairy ball theorem: references to applications
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6
String-net condensation in 3D
physics.stackexchange.com

6
What are the uses of Hopf algebras in physics?
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6
Why $Q|0\rangle=0$ where $Q$ generates a symmetry?
physics.stackexchange.com

6
Fermion operators: why $\rm SU(2)$ symmetry and not $\rm U(2)$ symmetry?
physics.stackexchange.com

5
Superpartner for the stress-energy tensor
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