User AccidentalTaylorExpansion - Physics Stack Exchange

17 votes

3 answers

3k views

How do Rindler coordinates fit into special relativity?

asked Sep 20, 2020 at 12:17

15 votes

4 answers

5k views

What does this notation for spin mean? $\mathbf{\frac 1 2}\otimes\mathbf{\frac 1 2}=\mathbf{1}\oplus\mathbf 0$

asked Mar 6, 2020 at 12:58

13 votes

2 answers

1k views

Does the expansion of spacetime add energy to matter? [duplicate]

asked Jan 1, 2022 at 14:38

9 votes

0 answers

507 views

Is it possible to simulate QFT to make pretty animations?

asked Oct 24, 2021 at 22:20

9 votes

2 answers

1k views

Does QFT predict that the lattice constant of the universe is zero?

asked Jul 15, 2025 at 9:14

6 votes

1 answer

3k views

What's the (intuitive) difference between a primary and a quasi-primary operator in a CFT?

asked Nov 7, 2021 at 16:17

6 votes

2 answers

2k views

Writing operators in the position basis

asked Sep 29, 2019 at 23:03

6 votes

3 answers

2k views

How many photons are in a microwave oven?

asked May 3, 2020 at 9:02

4 votes

1 answer

258 views

Dirac notation: what if we display tensor products vertically?

asked Jun 17, 2020 at 21:16

4 votes

2 answers

957 views

Why is $g_{\mu\nu}\frac{dx^\mu}{d\lambda}\frac{dx^\nu}{d\lambda}$ a constant for geodesics in GR?

asked Dec 13, 2020 at 13:23

4 votes

1 answer

1k views

Why are Killing horizons related to event horizons?

asked Jan 17, 2021 at 20:47

4 votes

2 answers

459 views

Constraints on the Einstein-Hilbert action

asked Feb 1, 2021 at 12:47

4 votes

2 answers

763 views

Will the box float?

asked Nov 13, 2019 at 11:40

4 votes

2 answers

291 views

Inverted Pascal's barrel

asked Dec 27, 2022 at 22:26

3 votes

1 answer

241 views

What appears in the wake of a moving event horizon? For 2 merging black holes for example

asked Jan 8, 2023 at 22:51

3 votes

1 answer

267 views

Why do mass terms in QFT couple to gravity?

asked Dec 7, 2021 at 14:41

3 votes

1 answer

463 views

Why can atoms only absorb/emit certain frequencies of light?

asked Apr 10, 2020 at 13:53

3 votes

3 answers

220 views

Why, when you eject an electron from a metal, do you get exactly one electron and not part of an electron?

asked Nov 25, 2020 at 16:05

3 votes

1 answer

942 views

Problems implementing Lattice Boltzmann method

asked Sep 24, 2015 at 21:27

3 votes

1 answer

280 views

Why is there no "parabolic abberation" in lenses?

asked Feb 8, 2024 at 14:06

3 votes

0 answers

84 views

Book recommendation: adaptive optics

asked Mar 14, 2024 at 9:49

3 votes

2 answers

575 views

Can you reconstruct Poynting's vector from only the electric field?

asked Jan 8, 2025 at 9:05

3 votes

0 answers

140 views

In QFT, what happens when we only integrate over paths inside light cone? [closed]

asked Mar 17, 2025 at 9:40

2 votes

1 answer

271 views

How can parameters in QFT depend on scale or energy?

asked May 7, 2025 at 11:25

2 votes

1 answer

160 views

How does $\nabla \nabla$ work in the dyadic Green's function?

asked Feb 19, 2025 at 9:25

2 votes

2 answers

149 views

Is there a symmetric form for change of basis of spin 1/2 basis states?

asked Jan 5 at 22:31

2 votes

1 answer

117 views

Can somebody explain Projection-Valued Measures (PVMs) and POVMs in quantum mechanics? [closed]

asked Jan 28 at 13:02

2 votes

2 answers

2k views

Can quantum particles spread out over large distances?

asked Sep 6, 2017 at 20:04

2 votes

1 answer

362 views

What do you see in 'A Boy and His Atom'

asked Oct 20, 2019 at 19:04

2 votes

1 answer

177 views

How can you interpret the Schrödinger equation? [closed]

asked Sep 14, 2021 at 21:45

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55 Questions

How do Rindler coordinates fit into special relativity?

What does this notation for spin mean? $\mathbf{\frac 1 2}\otimes\mathbf{\frac 1 2}=\mathbf{1}\oplus\mathbf 0$

Does the expansion of spacetime add energy to matter? [duplicate]

Is it possible to simulate QFT to make pretty animations?

Does QFT predict that the lattice constant of the universe is zero?

What's the (intuitive) difference between a primary and a quasi-primary operator in a CFT?

Writing operators in the position basis

How many photons are in a microwave oven?

Dirac notation: what if we display tensor products vertically?

Why is $g_{\mu\nu}\frac{dx^\mu}{d\lambda}\frac{dx^\nu}{d\lambda}$ a constant for geodesics in GR?

Why are Killing horizons related to event horizons?

Constraints on the Einstein-Hilbert action

Will the box float?

Inverted Pascal's barrel

What appears in the wake of a moving event horizon? For 2 merging black holes for example

Why do mass terms in QFT couple to gravity?

Why can atoms only absorb/emit certain frequencies of light?

Why, when you eject an electron from a metal, do you get exactly one electron and not part of an electron?

Problems implementing Lattice Boltzmann method

Why is there no "parabolic abberation" in lenses?

Book recommendation: adaptive optics

Can you reconstruct Poynting's vector from only the electric field?

In QFT, what happens when we only integrate over paths inside light cone? [closed]

How can parameters in QFT depend on scale or energy?

How does $\nabla \nabla$ work in the dyadic Green's function?

Is there a symmetric form for change of basis of spin 1/2 basis states?

Can somebody explain Projection-Valued Measures (PVMs) and POVMs in quantum mechanics? [closed]

Can quantum particles spread out over large distances?

What do you see in 'A Boy and His Atom'

How can you interpret the Schrödinger equation? [closed]