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visits member for 3 years, 5 months
seen Aug 5 at 23:43

I'm an experimental condensed matter physicist, but I'm very curious about high energy physics as well.


Aug
5
accepted Symmetries of a Uniform Magnetic Field
Aug
5
comment Symmetries of a Uniform Magnetic Field
Thanks for the detailed reply. Is there any physical significance to the constants $\mathbf{b}$ and $\phi$?
May
8
awarded  Popular Question
Mar
15
awarded  Yearling
Mar
2
awarded  Popular Question
Dec
19
accepted Helicity and Pseudospin in Graphene
Dec
8
awarded  Nice Question
Dec
6
comment Helicity and Pseudospin in Graphene
Thanks for the reply! If we can tweak the basis to make both $K$ and $K'$ fit the definition of the helicity operator, does that mean the concept of helicity/chirality is not so useful when discussing scattering between the two valleys?
Dec
4
awarded  Popular Question
Sep
24
awarded  Autobiographer
Jul
2
awarded  Curious
Jun
5
comment Can the Berry Connection be derived from a metric?
Ok cool thanks. So if that's not true, my question still holds: Does a metric exist such that the Berry Connection is a Levi-Civita connection?
Jun
5
asked Can the Berry Connection be derived from a metric?
Jun
5
accepted What is curved in Berry Curvature?
Jun
5
comment Does electron-electron scattering contribute to resistivity?
So... Have we reached consensus in this debate? Or still in disagreement?
May
23
comment Does electron-electron scattering contribute to resistivity?
Thank you for the detailed response! I'm still somewhat confused. Even in the presence of electron-electron interactions, we have translational invariance, so the total momentum is a good quantum number. How do we reconcile Fermi liquid theory with the requirement that the total momentum of the system is conserved?
May
21
asked Does electron-electron scattering contribute to resistivity?
Apr
29
accepted Phase factor for nearest neighbor hopping in the Haldane Model
Apr
10
accepted Where does the phase difference come from in a Josephson Junction?
Apr
9
comment Where does the phase difference come from in a Josephson Junction?
I am beginning to understand now. So, if we tie both superconductors to a common voltage $V$, there will be no current? And from $\dot{\phi}=2eV/\hbar$, $\phi =2eVt/\hbar+C$. What determines the integration constant?