User Wolpertinger

27 votes

5 answers

4k views

Can Feynman diagrams be used to represent any perturbation theory?

asked Mar 6, 2016 at 22:12

24 votes

9 answers

3k views

On a measurement level, is quantum mechanics a deterministic theory or a probability theory?

asked Jul 23, 2016 at 21:39

17 votes

15 answers

15k views

How to pour water from a bottle as fast as possible?

asked Jun 7, 2016 at 21:13

16 votes

5 answers

2k views

How is the ground state chosen in a spontaneous symmetry breaking process?

asked Apr 12, 2016 at 13:00

15 votes

3 answers

11k views

Why do smaller animals survive falls from larger heights?

asked Feb 14, 2016 at 23:05

14 votes

3 answers

670 views

Rope waves with a twist

asked Apr 25, 2016 at 11:23

13 votes

1 answer

567 views

Did Leggett and Caldeira solve the measurement problem?

asked Feb 22, 2016 at 22:13

13 votes

1 answer

605 views

Explicitly verifying a scattering theory identity

asked Aug 16, 2018 at 14:57

12 votes

2 answers

3k views

Why are usually 4x4 gamma matrices used? [duplicate]

asked Jun 3, 2016 at 8:45

11 votes

3 answers

515 views

How to do quantum mechanics if the Schrödinger equation was a Sturm-Liouville equation?

asked Jun 29, 2017 at 14:43

8 votes

2 answers

326 views

Lie groups with same algebra

asked Apr 11, 2016 at 16:09

8 votes

1 answer

404 views

What is a weak value really?

asked Apr 13, 2016 at 16:28

7 votes

1 answer

120 views

Why are electric shocks felt asymmetrically?

asked Apr 3, 2016 at 20:34

7 votes

3 answers

566 views

Are there Gauge fields that are not 4-vectors?

asked Jun 26, 2016 at 15:48

6 votes

1 answer

2k views

Book on Berry phase and its relation to topology

asked May 23, 2016 at 21:15

6 votes

2 answers

1k views

Kerr Metric from rotated Schwarzschild?

asked Mar 1, 2016 at 8:24

6 votes

2 answers

2k views

Does recent paper show Bohmian mechanics is correct?

asked Mar 3, 2016 at 13:39

6 votes

1 answer

285 views

Methodology: how to deal with non-rigorous derivations [closed]

asked Feb 19, 2016 at 13:17

5 votes

3 answers

1k views

Can gravitational waves diffract off massive objects?

asked Apr 5, 2016 at 20:07

5 votes

1 answer

313 views

Quantization of dissipative systems?

asked Apr 14, 2016 at 0:20

5 votes

2 answers

1k views

Are there more than 3 dynamical pictures of quantum mechanics?

asked Jun 17, 2019 at 20:00

4 votes

2 answers

709 views

Why representations instead of just groups?

asked Apr 1, 2016 at 20:21

4 votes

0 answers

170 views

Why is there a minus in the Gauge Field Lagrangian kinetic term? [duplicate]

asked Apr 3, 2016 at 9:27

4 votes

2 answers

355 views

Why is a continuum of bath modes required for irreversible dynamics?

asked May 4, 2017 at 14:31

4 votes

2 answers

962 views

How is the "normalisation" of non-normalizable states chosen?

asked Aug 9, 2016 at 9:48

4 votes

0 answers

604 views

What is the relation between the Holstein-Primakoff Transformation and Bethe's Ansatz for the Heisenberg Ferromagnet?

asked Oct 25, 2016 at 16:00

3 votes

2 answers

326 views

Why do populations only change in second order of the driving field?

asked Apr 25, 2017 at 11:03

3 votes

2 answers

4k views

Why does this trick for elastic collision with rotation work?

asked Aug 3, 2016 at 9:36

3 votes

1 answer

147 views

Slackline tangling

asked Mar 31, 2016 at 22:28

2 votes

0 answers

86 views

Continuous renormalisation

asked Feb 14, 2016 at 16:41

Stack Exchange Network

40 Questions

Can Feynman diagrams be used to represent any perturbation theory?

On a measurement level, is quantum mechanics a deterministic theory or a probability theory?

How to pour water from a bottle as fast as possible?

How is the ground state chosen in a spontaneous symmetry breaking process?

Why do smaller animals survive falls from larger heights?

Rope waves with a twist

Did Leggett and Caldeira solve the measurement problem?

Explicitly verifying a scattering theory identity

Why are usually 4x4 gamma matrices used? [duplicate]

How to do quantum mechanics if the Schrödinger equation was a Sturm-Liouville equation?

Lie groups with same algebra

What is a weak value really?

Why are electric shocks felt asymmetrically?

Are there Gauge fields that are not 4-vectors?

Book on Berry phase and its relation to topology

Kerr Metric from rotated Schwarzschild?

Does recent paper show Bohmian mechanics is correct?

Methodology: how to deal with non-rigorous derivations [closed]

Can gravitational waves diffract off massive objects?

Quantization of dissipative systems?

Are there more than 3 dynamical pictures of quantum mechanics?

Why representations instead of just groups?

Why is there a minus in the Gauge Field Lagrangian kinetic term? [duplicate]

Why is a continuum of bath modes required for irreversible dynamics?

How is the "normalisation" of non-normalizable states chosen?

What is the relation between the Holstein-Primakoff Transformation and Bethe's Ansatz for the Heisenberg Ferromagnet?

Why do populations only change in second order of the driving field?

Why does this trick for elastic collision with rotation work?

Slackline tangling

Continuous renormalisation