129 reputation
6
bio website faculty.washington.edu/…
location Seattle, WA
age 21
visits member for 1 year, 5 months
seen Apr 11 at 20:07

Hi!

I am a student at the University of Washington. I dilly dally in a few fields - Math, Chemistry, Physics, Computer Science - and am trying to find my way into a graduate school in one of these fields. I'm currently working in a theoretical chemistry group, so I spend a lot of my time on the physics and stack overflow sites. The link under 'website' is our group's site - I'm the dude in the middle.


Apr
8
comment What is the Reduced Density Matrix?
Is there a reason you specified that $A$ and $B$ have to be finite dimensional? Where does the formalism break if you have infinite-dimensional spaces (for example, all possible energy states of the harmonic oscillator). Note: the trace might still converge.
Dec
9
revised TKNN invariant changes due to continuous deformation of parameter space
added 298 characters in body
Dec
9
asked TKNN invariant changes due to continuous deformation of parameter space
Dec
9
accepted Energy stored in space/frequency electric field
Mar
17
comment How is parity relevant to determining angular momentum?
I still don't see how this is relevant to the problem. Could you give an example of $S_A$, $J_A$, $L$, $S_1$, and $S_2$ that work? How does the intrinsic parity of particles translate into the total angular momentum J?
Mar
17
comment How is parity relevant to determining angular momentum?
But if we use A's frame, then there is no meaning to asking for solutions for even and odd parity A. Doesn't the problem as stated demand that we work in the lab frame? Also, am I correct in assuming that J of particle A must be an integer, because L and S of the B particles are both integers?
Mar
17
revised How is parity relevant to determining angular momentum?
edited typos
Mar
16
asked How is parity relevant to determining angular momentum?
Mar
16
revised Magnetic Fields created by Current-Carrying Wires
added 20 characters in body
Mar
16
answered Magnetic Fields created by Current-Carrying Wires
Mar
12
accepted Bessel vs. modified Bessel in radial equation of hydrogen
Mar
6
asked Bessel vs. modified Bessel in radial equation of hydrogen
Dec
26
comment Meaning of juxtaposition of vectors
This was my original thought but I wanted to be sure.
Dec
26
accepted Meaning of juxtaposition of vectors
Dec
26
comment Meaning of juxtaposition of vectors
Great answer, thanks! And yes - I got that the indices refer to different objects rather than matrix components. Did you happen to catch the intuition behind equation (6)? It supposed to represent how one dipole (j) 'talks' to another dipole (k) - but the expression looks complicated and there's no source or explanation for it.
Dec
26
asked Meaning of juxtaposition of vectors
Dec
22
comment Intuition behind Fourier transformed spaces
Yeah - I understood mathematically why there wasn't a time dependence, but I guess I'm looking for intuition - it's easy to understand time/space dependence, but what is a momentum/wavelength dependent electric field?
Dec
21
awarded  Editor
Dec
21
revised Intuition behind Fourier transformed spaces
added 8 characters in body
Dec
21
asked Intuition behind Fourier transformed spaces