User Blazej

8 votes

Space-Time Curvature Depends on Relative Speed

answered Jul 22, 2016 at 9:42

6 votes

Why is angular momentum $mvr$ and not $mvr^2$ or $mvr^3$?

answered Mar 23, 2021 at 9:15

5 votes

Accepted

Proof of the invariance of the Levi-Civita tensor

answered Sep 19, 2016 at 20:00

4 votes

Accepted

Prove that infinitesmal angular displacements commute & non-infinitesimal ones don't?

answered Aug 28, 2016 at 20:55

4 votes

S-matrix in Weinberg QFT

answered Jul 29, 2016 at 7:11

4 votes

What is the difference between time and space in general relativity?

answered May 26, 2016 at 10:57

4 votes

Accepted

Propagators and Eigenfunctions

answered Feb 7, 2018 at 12:35

4 votes

Accepted

Is a CFT quantized on flat space trivial?

answered Apr 28, 2020 at 21:36

3 votes

Accepted

The meaning of "closed by Maxwell's Equations"?

answered Jul 24, 2017 at 13:02

3 votes

Can one forget about the contribution of 1PR diagrams in computing a scattering amplitude?

answered Jul 25, 2017 at 9:32

3 votes

Lagrangian of an effective potential

answered Jun 12, 2016 at 12:34

3 votes

Actions that are not integrals

answered Jul 24, 2016 at 16:21

3 votes

Is it a coincidence that quantum harmonic oscillators and photons have energy quantised as $E=hf$?

answered Jul 18, 2016 at 20:41

3 votes

Defining center of mass in the presence of curvature

answered Jul 21, 2016 at 21:48

3 votes

Why are the electric force and magnetic force classified as electromagnetism?

answered May 21, 2016 at 14:17

3 votes

Are fields intuitive choices to explain forces?

answered Jul 29, 2016 at 11:48

3 votes

Is there any physical interpretation of Nash embedding theorem?

answered Aug 1, 2016 at 21:59

3 votes

Why are eigen-things better/more useful than non-eigen-things?

answered Aug 10, 2016 at 17:38

3 votes

Accepted

Bounds on Matrix Elements of Unbounded Operators

answered Aug 16, 2016 at 19:14

3 votes

The adjoint representation and the gauge boson of $O(n)$

answered Sep 16, 2016 at 9:43

2 votes

Two particle rigid rotor in QM

answered Sep 16, 2016 at 13:41

2 votes

Massless Weyl spinor components

answered Sep 19, 2016 at 9:36

2 votes

Accepted

How should I understand $x^\nu y_\mu$?

answered Aug 25, 2016 at 20:04

2 votes

Interpretation of components of four-momentum in QFT

answered Aug 2, 2016 at 11:10

2 votes

Two Robertson-Walker observers, at what time will a light signal be received?

answered Apr 30, 2016 at 21:05

2 votes

Does the use of $\gamma=\left(1-v^{2}/c^{2}\right)^{-1/2}$ automatically assume a (+ - - - ) metric?

answered Jun 30, 2016 at 6:53

2 votes

QFT: How would you explain to a mathematician what "transforms as" means?

answered Sep 14, 2016 at 10:13

1 vote

Good texts on Quantum Mechanics to accompany this online course

answered Jun 3, 2016 at 16:52

1 vote

Killing tensor in Minkowski space

answered Jun 4, 2016 at 10:49

1 vote

Accepted

What cosmic event would have to occur for us to notice gravitational waves in everyday life?

answered Jul 21, 2016 at 22:40

Stack Exchange Network

47 Answers

Space-Time Curvature Depends on Relative Speed

Why is angular momentum $mvr$ and not $mvr^2$ or $mvr^3$?

Proof of the invariance of the Levi-Civita tensor

Prove that infinitesmal angular displacements commute & non-infinitesimal ones don't?

S-matrix in Weinberg QFT

What is the difference between time and space in general relativity?

Propagators and Eigenfunctions

Is a CFT quantized on flat space trivial?

The meaning of "closed by Maxwell's Equations"?

Can one forget about the contribution of 1PR diagrams in computing a scattering amplitude?

Lagrangian of an effective potential

Actions that are not integrals

Is it a coincidence that quantum harmonic oscillators and photons have energy quantised as $E=hf$?

Defining center of mass in the presence of curvature

Why are the electric force and magnetic force classified as electromagnetism?

Are fields intuitive choices to explain forces?

Is there any physical interpretation of Nash embedding theorem?

Why are eigen-things better/more useful than non-eigen-things?

Bounds on Matrix Elements of Unbounded Operators

The adjoint representation and the gauge boson of $O(n)$

Two particle rigid rotor in QM

Massless Weyl spinor components

How should I understand $x^\nu y_\mu$?

Interpretation of components of four-momentum in QFT

Two Robertson-Walker observers, at what time will a light signal be received?

Does the use of $\gamma=\left(1-v^{2}/c^{2}\right)^{-1/2}$ automatically assume a (+ - - - ) metric?

QFT: How would you explain to a mathematician what "transforms as" means?

Good texts on Quantum Mechanics to accompany this online course

Killing tensor in Minkowski space

What cosmic event would have to occur for us to notice gravitational waves in everyday life?