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tomdodd4598
  • Member for 8 years, 5 months
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16 votes
4 answers
766 views

Why would GR's prediction for galaxy rotation curves differ from Newtonian gravity's in spite of prevailing intuition from dimensional analysis?

7 votes
1 answer
679 views

Is the hierarchy problem definitely a "problem"?

6 votes
3 answers
243 views

How did Ernest Sternglass’ phenomenologically incorrect model of the neutral pion predict its mass and lifetime so accurately?

5 votes
0 answers
242 views

QFT: Normal Ordering Interaction Hamiltonian Before Using Wick's Theorem

5 votes
1 answer
207 views

Questions about "A Quadrillion Standard Models from F-theory"

5 votes
0 answers
213 views

Embedding $h = \pm 2$ gravitons into the $\left(1,1\right)$ Lorentz representation

4 votes
0 answers
170 views

Is this general symmetrisation of the canonical energy-momentum tensor correct?

3 votes
0 answers
133 views

Reasoning for projective representations of Lorentz group in the context of QFT

3 votes
1 answer
110 views

Final steps in obtaining the $(m,n)$-labelled finite-dimensional irreps of the restricted Lorentz group

3 votes
1 answer
113 views

Confusion about relationship between $\mathfrak{so}^+(1,3)$ and $\mathfrak{su}(2) \oplus \mathfrak{su}(2)$

3 votes
1 answer
419 views

Confusion about $U(1)$ representations and charge quantisation in the context of gauge theory

3 votes
1 answer
218 views

Argument for existence of normal coordinates at a given point

3 votes
1 answer
165 views

Argument that the massless bosonic string describes gravitation

3 votes
1 answer
195 views

Branes in Closed Bosonic String Theory

3 votes
1 answer
71 views

Black hole metric of reflected shell of incoming light

2 votes
1 answer
122 views

Extra degrees of freedom in toy spontaneous symmetry breaking model?

2 votes
2 answers
177 views

Solving EOMs for massless particle in a potential

2 votes
1 answer
88 views

Simplification of nested time-ordered products

2 votes
1 answer
114 views

Are magnetic charges compulsory in string theory?

2 votes
2 answers
130 views

Which finite-dimensional representations of the Lorentz group do $p$-forms correspond to?

2 votes
0 answers
115 views

Kaluza-Klein compactifications with ${\cal N}=1$ supersymmetry

2 votes
0 answers
386 views

QED - running of coupling (beta function)

2 votes
1 answer
3k views

What are the $U(1)$ representations and their generators?

2 votes
1 answer
162 views

Trouble deriving the symmetrised canonical energy-momentum tensor for the Dirac Lagrangian

1 vote
0 answers
133 views

Confusion about Weinberg's short argument for the existence of antiparticles

1 vote
3 answers
219 views

For a generic two-state quantum system, are there interpretations for the observables corresponding to all Hermitian operators?

1 vote
1 answer
264 views

Was Dirac's discovery of the Dirac equation by requiring a positive-definite probability density $j^0$ an unjustified coincidence?

1 vote
1 answer
310 views

Lagrangian of massless particle in a potential

1 vote
1 answer
465 views

$φ^3$ theory: three-point, one-loop diagram ($D=4$)

1 vote
0 answers
134 views

Renormalisation scale and running of the $φ^3$ coupling constant (cut-off scheme)