Recent content by pedda

Hey, I think I just realized the conceptual error in my question: Since the drift velocity is of course dependent on the voltage drop occurring across the resistor, the lower mobility of charges in the part with higher resistance is compensated for by the higher voltage drop leading to the same...

Hey, I have a question on resistivity. When I first studied circuits as an undergrad, I just accepted the principle of voltage division and related things they taught us. I now major in condensed matter physics and now having seen the formalism for conductivity in the Drude model and the...

I don't see any way to edit my last post, but an important part that I left out is the actual time development that appears in the denominator of the exponentials, so don't take what I've written too seriously. The most important part is that symmetrization works even for wavepackets as long as...

Hey, yes, I did resolve it for me, but I don't know if it is correct. The Pauli exclusion principle states that the wave function has to be antisymmetric with respect to the exchange of particles. The fact that you have two wavepackets centered around two different ks doesn't violate this...

Hello, I have a question concerning the use of wavepackets to justify the semiclassical approach in solid state physics. In Ashcroft/Mermin, the authors briefly mention that we can construct wave packets and then use them to describe the motion of the center which can be interpreted as what...