User Ruslan

115 votes

10 answers

38k views

How is a quantum superposition different from a mixed state?

asked Oct 11, 2013 at 22:18

28 votes

1 answer

1k views

What do individual rainbow-forming droplets look like?

asked May 27, 2018 at 21:52

21 votes

1 answer

3k views

Interpretation of Dirac equation states

asked Dec 29, 2013 at 13:18

16 votes

3 answers

879 views

Renormalization in non-relativistic quantum mechanics

asked Nov 1, 2014 at 11:15

14 votes

3 answers

4k views

Visualizing GR spacetime distortion in 1+1D spacetime instead of 2D space

asked Dec 29, 2014 at 8:00

13 votes

3 answers

1k views

Can spin-1/2 emerge as a property of quasiparticles if original description of the system was without spin?

asked Feb 8, 2015 at 19:30

13 votes

2 answers

466 views

Why do diffractions spikes from small aperture not have fringes?

asked May 18, 2017 at 11:15

11 votes

1 answer

1k views

Can a quasiclassical electron wave packet in elliptic orbit be formed from bound hydrogen-like eigenstates?

asked Dec 14, 2017 at 7:35

10 votes

1 answer

996 views

How will SR EM Lagrangian change if we find a magnetic charge?

asked Feb 9, 2015 at 11:03

10 votes

1 answer

794 views

Does Feynman path integral include discontinuous trajectories?

asked May 3, 2014 at 7:30

9 votes

1 answer

1k views

Are pure mechanical evanescent waves possible?

asked Dec 16, 2013 at 13:10

9 votes

5 answers

1k views

What does electric field of unpolarized light look like when measured?

asked Apr 21, 2015 at 15:38

9 votes

1 answer

514 views

How to check whether Schrödinger's cat was in superposition of states?

asked Feb 28, 2015 at 7:44

9 votes

2 answers

1k views

Why are S-state solutions of Dirac equation for hydrogen atom allowed to be unbounded?

asked Nov 14, 2016 at 6:27

8 votes

1 answer

270 views

What conserved quantity causes degeneracy of spectrum in rational polygonal billiards?

asked Dec 11, 2016 at 10:44

7 votes

2 answers

585 views

Are there any fully analytically solvable nonlinear oscillators?

asked Jul 7, 2015 at 18:39

7 votes

2 answers

1k views

Inexact measurement and wavefunction collapse

asked Jan 3, 2014 at 19:46

7 votes

1 answer

280 views

How can I simulate a model electronic hole?

asked Apr 18, 2014 at 4:49

6 votes

3 answers

316 views

Why are nearby clouds so different in brightness?

asked Jul 23, 2017 at 18:08

6 votes

1 answer

1k views

Why are doubly-excited states in helium not square integrable?

asked Feb 22, 2017 at 10:28

6 votes

1 answer

128 views

Why does energy exchange mechanism appear to affect energy distribution in a gas?

asked Jun 16, 2020 at 19:18

5 votes

1 answer

224 views

Does sky luminance really decrease in steps as the Sun goes deeper under the horizon?

asked Feb 17, 2019 at 9:40

5 votes

2 answers

169 views

Is there anything like a "polarizer rejection spectrum"?

asked May 8, 2018 at 12:58

5 votes

1 answer

1k views

Does action really have to be Lorentz-invariant in SR?

asked Jan 30, 2014 at 19:47

5 votes

4 answers

2k views

Why can interference from two independent sources be observed?

asked Mar 18, 2014 at 12:26

5 votes

2 answers

733 views

How can Lorentz contraction be "directly" measured?

asked Jun 30, 2014 at 12:02

5 votes

1 answer

173 views

Could quarks be free in higher-dimensional space than 3D?

asked Jan 17, 2014 at 9:30

5 votes

3 answers

4k views

Is there any time-dependent hydrogen atom Schrödinger equation, solvable analytically?

asked Jan 24, 2014 at 13:16

5 votes

1 answer

305 views

Why does roughened silver look gray while paper white?

asked Jul 9, 2015 at 6:49

5 votes

2 answers

527 views

How can mean value of a quantity $be$ an operator?

asked Feb 24, 2015 at 19:38

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118 Questions

How is a quantum superposition different from a mixed state?

What do individual rainbow-forming droplets look like?

Interpretation of Dirac equation states

Renormalization in non-relativistic quantum mechanics

Visualizing GR spacetime distortion in 1+1D spacetime instead of 2D space

Can spin-1/2 emerge as a property of quasiparticles if original description of the system was without spin?

Why do diffractions spikes from small aperture not have fringes?

Can a quasiclassical electron wave packet in elliptic orbit be formed from bound hydrogen-like eigenstates?

How will SR EM Lagrangian change if we find a magnetic charge?

Does Feynman path integral include discontinuous trajectories?

Are pure mechanical evanescent waves possible?

What does electric field of unpolarized light look like when measured?

How to check whether Schrödinger's cat was in superposition of states?

Why are S-state solutions of Dirac equation for hydrogen atom allowed to be unbounded?

What conserved quantity causes degeneracy of spectrum in rational polygonal billiards?

Are there any fully analytically solvable nonlinear oscillators?

Inexact measurement and wavefunction collapse

How can I simulate a model electronic hole?

Why are nearby clouds so different in brightness?

Why are doubly-excited states in helium not square integrable?

Why does energy exchange mechanism appear to affect energy distribution in a gas?

Does sky luminance really decrease in steps as the Sun goes deeper under the horizon?

Is there anything like a "polarizer rejection spectrum"?

Does action really have to be Lorentz-invariant in SR?

Why can interference from two independent sources be observed?

How can Lorentz contraction be "directly" measured?

Could quarks be free in higher-dimensional space than 3D?

Is there any time-dependent hydrogen atom Schrödinger equation, solvable analytically?

Why does roughened silver look gray while paper white?

How can mean value of a quantity $be$ an operator?