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J C
  • Member for 4 years, 10 months
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29 votes
2 answers
3k views

Can the center of charge and center of mass of an electron differ in quantum mechanics?

15 votes
3 answers
2k views

Hydrogen atom, what's the wave equation for the atom's nucleus?

3 votes
3 answers
245 views

Why could angular momentum and spin add together? (Mathematical Proofs)

3 votes
2 answers
381 views

In Maxwell equations, why time derivatives only appear together with Curl?

2 votes
1 answer
102 views

Distinguish Definitions: Realism Scientific, Realism, and realistic

2 votes
2 answers
676 views

What's the difference between rotational Energy/angular momentum and linear kinetic energy/linear momentum?

1 vote
2 answers
943 views

$dQ=Tds$ and quasistatic process

1 vote
1 answer
69 views

In ideal gas $\partial_V(PdV)_T=P$

1 vote
1 answer
213 views

Partial deritative of $\partial_V(PV)_T$ with $PV=nRT$

1 vote
2 answers
330 views

Does entangled states must become non entangled states after the measurement?

1 vote
1 answer
182 views

$\langle xp+px\rangle|_{t=0}=2\langle p\rangle\langle x\rangle|_{t=0}$ for the free particle?

1 vote
0 answers
89 views

Mathematical proof that Fermions are half-integer spin particles, and half-integer spin particles are Fermions [duplicate]

1 vote
0 answers
120 views

How to experimentally construct an imaginary(complex) potential, and what does it mean?

1 vote
0 answers
96 views

Copenhagen interpretation and argument of boundary condition [duplicate]

1 vote
2 answers
105 views

The invariance of BEC and curved space

1 vote
0 answers
121 views

Particle in a box, what's the most likely states for particle to jump to?(by calculation)

1 vote
1 answer
380 views

Momentum space in real computation

1 vote
1 answer
268 views

Clebsch–Gordan coefficients mathematical proof for bigger $\Delta m$ make the sign between vertical jump

1 vote
0 answers
201 views

What was the implication of Quaternions in modern (21th) physics and usage in electrodynamics in 19th century? [closed]

1 vote
1 answer
2k views

Symmetry of Hamiltonian in harmonic oscillator

1 vote
1 answer
385 views

reading the bubble chamber image

1 vote
1 answer
118 views

Prove Spin of a massless particle $S_z=\pm1$

1 vote
1 answer
103 views

States created by translation operator

1 vote
0 answers
40 views

Why energy plays such an important role among other conservative quantities

0 votes
1 answer
56 views

Energy $E_n$ for eigenstates $n$ and position probabilistic distribution

0 votes
1 answer
60 views

Question about creating a High energy gap

0 votes
2 answers
756 views

Particle in a box momentum and position, expectation and uncertainty in stationary states

0 votes
1 answer
308 views

Substitute Schrödinger Equation by complex analysis, was the substitution correct?

0 votes
1 answer
89 views

Step potential well solve the other kind of given boundary condition

0 votes
1 answer
77 views

Calculate Tensor and its transformations, transformation of derivatives of dependent variables