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DanielC
  • Member for 8 years, 6 months
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179 votes
2 answers
27k views

Why do we not have spin greater than 2?

  • 2,723
164 votes
11 answers
16k views

What makes a theory "Quantum"?

143 votes
7 answers
12k views

Is temperature a Lorentz invariant in relativity?

  • 2,577
142 votes
7 answers
27k views

A list of inconveniences between quantum mechanics and (general) relativity?

  • 6,501
119 votes
4 answers
12k views

The Role of Rigor [closed]

  • 1,963
116 votes
19 answers
122k views

Books for general relativity

112 votes
10 answers
15k views

How can I stand on the ground? EM or/and Pauli?

111 votes
4 answers
16k views

Intuitively, why are bundles so important in Physics?

  • 30.2k
102 votes
15 answers
15k views

Why can't $ i\hbar\frac{\partial}{\partial t}$ be considered the Hamiltonian operator?

  • 16k
101 votes
4 answers
9k views

Why does nature favour the Laplacian?

  • 1,145
90 votes
11 answers
31k views

Quantum Field Theory from a mathematical point of view

  • 1,383
83 votes
1 answer
6k views

Why exactly do sometimes universal covers, and sometimes central extensions feature in the application of a symmetry group to quantum physics?

  • 108k
78 votes
1 answer
9k views

Does Feynman's derivation of Maxwell's equations have a physical interpretation?

78 votes
10 answers
76k views

What is a complete book for introductory quantum field theory?

  • 1,927
78 votes
9 answers
15k views

Why is there a controversy on whether mass increases with speed?

  • 1,116
76 votes
21 answers
44k views

Comprehensive book on group theory for physicists?

  • 14.3k
69 votes
5 answers
9k views

Is the converse of Noether's first theorem true: Every conservation law has a symmetry?

  • 4,957
66 votes
3 answers
8k views

Idea of Covering Group

  • 24.4k
64 votes
7 answers
7k views

Is the Boltzmann constant really that important?

  • 3,497
62 votes
7 answers
14k views

Rigor in quantum field theory

  • 3,615
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
58 votes
7 answers
6k views

What's the physical meaning of the statement that "photons don't have positions"?

  • 95.5k
58 votes
5 answers
31k views

Why is technetium unstable?

54 votes
3 answers
3k views

Why are relativistic quantum field theories so much more restrictive than non-relativistic ones?

  • 95.5k
54 votes
3 answers
3k views

Are there exact analytical solutions to the electronic states of the hydrogen molecular ion $\mathrm H_2^+$?

54 votes
7 answers
15k views

A No-Nonsense Introduction to Quantum Field Theory

53 votes
6 answers
8k views

Haag's theorem and practical QFT computations

  • 2,643
52 votes
5 answers
13k views

Mathematically-oriented Treatment of General Relativity

  • 391
48 votes
5 answers
12k views

Noether charge of local symmetries

48 votes
6 answers
4k views

What is the "secret " behind canonical quantization?

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