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delon
  • Member for 4 years, 5 months
  • Last seen more than a month ago
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question
5
Deriving the Hamiltonian of the Klein-Gordon field in terms of ladder operators (Peskin and Schroeder Eq. 2.31)
Jul 20, 2020
question
4
Question about deriving the amount of pressure due to an element of momentum space in cosmology (Baumann Cosmology Book Eq. 3.10)
Jan 13, 2023
question
3
Understanding the Meszaros Effect in terms of Hubble Drag
Mar 30, 2023
question
3
Why are departures from flat spacetime geometry small on scales smaller than the Hubble radius?
Jun 16, 2023
answer
3
How to express the linear growth equation in Cosmology in terms of $\partial_a$
Oct 11, 2023
answer
2
Change of variables from FRW metric to Newtonian gauge
Jun 13
question
1
Trouble understanding why $ {\bf p} a_{\bf p}a_{\bf -p}$ and ${\bf p} a^\dagger_{\bf p}a^\dagger_{-\bf p}$ are odd functions of $\bf p$
Jul 23, 2020
question
0
Understanding why $\frac{\partial (F_{\mu \nu} F^{\mu \nu})}{\partial (\partial_\lambda A_\beta)}=4 F^{\lambda \beta}$ in Maxwell's Equations [duplicate]
Jul 29, 2020
question
0
Transfer function from initial Curvature Perturbations to CMB Temperature Anisotropies has no direction dependence?
Oct 2, 2023
answer
0
Transfer function from initial Curvature Perturbations to CMB Temperature Anisotropies has no direction dependence?
Oct 6, 2023