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Riemann's user avatar
Riemann's user avatar
Riemann
  • Member for 2 years
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32 votes
6 answers
6k views

If I push someone, what fundamental force do I create?

11 votes
4 answers
2k views

What constitutes a microstate?

11 votes
7 answers
4k views

Does a random number generator have real entropy?

6 votes
3 answers
754 views

Do we need a quantum gravity theory to model an hydrogen atom on earth?

6 votes
3 answers
546 views

Is an electron in an hydrogen atom being measured by the nucleus?

4 votes
1 answer
322 views

If I let a brick fall on the ground, does it create more heat or give more kinetic energy to the earth?

4 votes
3 answers
994 views

Is unitary time evolution the same as obeying the Schrödinger equation?

3 votes
0 answers
78 views

Constructing wavefunction for a mixed state

3 votes
2 answers
162 views

How to choose the microstates so that thermodynamical entropy coincides with statistical mechanics entropy?

3 votes
6 answers
663 views

Do water wheels slow down the water downstream in a river?

2 votes
1 answer
166 views

How does $\frac{\langle v\rangle}{\langle v_r\rangle}=\frac{1}{\sqrt2}$ imply the formula for the mean free path?

2 votes
3 answers
228 views

Is the measurement problem an interpretation or practical problem?

2 votes
1 answer
109 views

How measure spins along the same axis with relativity

2 votes
0 answers
71 views

Is Landauer’s principle an approximation?

2 votes
1 answer
97 views

Reason of sudden electric shocks? [closed]

2 votes
1 answer
321 views

Lambda decay into neutron and photon

2 votes
0 answers
38 views

Is a quantum measurement a unitary transformation of the entire system? [duplicate]

2 votes
2 answers
165 views

Connection Helmholtz free energy and $H,M,B$ fields

2 votes
3 answers
520 views

Can gravity cause a wave function to collapse?

2 votes
0 answers
60 views

$\hbar$ in spin and Schrodinger Equation

1 vote
3 answers
106 views

Is the pressure zero in thermal equilibrium? [duplicate]

1 vote
3 answers
88 views

Are the $H$ and $M$ fields parallel?

1 vote
0 answers
57 views

Does the wave function of system plus detector satisfy the Schrödinger equation?

1 vote
0 answers
36 views

Equation 5.39 in "Introduction to Quantum Mechanics" by Griffiths [duplicate]

1 vote
1 answer
60 views

How does the phase factor change after measurement?

1 vote
3 answers
112 views

Damped Quantum Harmonic Oscillator with sinusoidal driving force

1 vote
1 answer
56 views

Is natural frequency a local or global property?

1 vote
1 answer
108 views

Example of information travelling faster than the speed of light?

1 vote
4 answers
316 views

Do objects outside the Hubble sphere violate special relativity?

1 vote
1 answer
68 views

Does change in entropy depend on the choice of microstates?