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pawel_winzig's user avatar
pawel_winzig's user avatar
pawel_winzig
  • Member for 13 years
  • Last seen more than a month ago
  • Münster, Germany
8 votes

Why particle number operator $\hat{N}$ is $\hat{a}^\dagger\hat{a}$ rather than $\hat{a}\hat{a}^\dagger$?

5 votes

Backyard experiments to falsify the Flat Earth theory

5 votes

Momentum space calculation of observables

2 votes
Accepted

Rotation of tennis ball getting reversed on striking the ground. Reason?

2 votes

How to understand the unitary?

2 votes

Work done by gravity

1 vote

What is magnetic conductivity?

1 vote

Acceleration proportional to the position

1 vote

Why can we treat the Bloch hamiltonian as an effective hamiltonian?

1 vote

Electrical work and Coulomb's law

0 votes

About simple moment

0 votes

What is a d + id superconductor and why does it break time reversal symmetry?

-1 votes
Accepted

A general solution to continuity equation

-1 votes

Energy to lift and then MOVE an object