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RedGiant
  • Member for 3 years, 1 month
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45 votes
Accepted

Why can atoms only gain or lose electrons and not protons?

15 votes

How can a red light photon be different from a blue light photon?

6 votes

Does the Pauli exclusion principle apply to one fermion and one antifermion?

6 votes

Two different formulas for the calculation of energy in QM

4 votes

Functional Derivative

3 votes

What is the difference between $| E, t \rangle $ and $ | E, 0 \rangle $?

3 votes
Accepted

What is a 'statistical operator' in quantum mechanics?

2 votes
Accepted

Good quantum numbers in solids

2 votes

Sound waves travel with electromagnetic waves?

2 votes
Accepted

How is $\mathrm dU=C_V\,\mathrm dT$ always true?

1 vote
Accepted

Why is electric field of dipole nonzero?

1 vote

How can any speed be defined as a constant?

1 vote
Accepted

What about the degeneracy in the brillouin zone as the energy at $k$ and $-k$ are the same?

1 vote
Accepted

Pauli Operators

1 vote
Accepted

How to calculate the process correctly using Feynman diagrams?

0 votes

Does change in shape of a body, while applying force to move it to a certain distance, cause any change in the work done on the body?

0 votes
Accepted

Average force on the walls of the 1D box

0 votes
Accepted

Using the infinitesimal-angle form of the rotation operator to perform infinitesimal rotaions on spin-1/2 states

0 votes

Does having an incline matter for an object’s velocity w/o friction?