185 reputation
8
bio website faculty.washington.edu/…
location Seattle, WA
age 21
visits member for 1 year, 11 months
seen Sep 17 at 0:47

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.


Jul
22
revised Is topology of universe observable?
Removed unnecessary statement of opinion.
Jul
22
suggested suggested edit on Is topology of universe observable?
Jul
8
answered Sold-State Band Structure - connection between Fermi Energy, Fermi Level and Work Fuction
Jul
4
comment Kinetic energy in Lagrangian formalism
But that is not one of the assumptions.... if we assumed that $\frac{\partial r}{\partial t} = 0$ then the system would be stationary? Instead we assume that the $q_i$ (as functions of $r_i$) do not depend on time explicitly.
Jul
4
asked Partial derivatives in Lagrangian formalism
Jul
4
asked Kinetic energy in Lagrangian formalism
Jul
2
awarded  Curious
May
31
revised Electric field of a dipole
corrected for a factor of r
May
31
comment Electric field of a dipole
Thank you for a very complete and intuitive answer. One question, though: why is $\hat{\theta} \sim \hat{r}\times(\hat{r}\times\mathbf{d})$?
May
31
accepted Electric field of a dipole
May
30
comment Electric field of a dipole
@Tobias Right, I know that those are /supposed/ to be equal, but I'm trying to figure out how to show that they are.
May
29
asked Electric field of a dipole
Apr
23
comment Why do we need non-trivial fibrations?
^That would be much appreciated. The math S.E. answer seems a little hard to parse. Here is another very related question: two-qubit systems are often represented as the Hopf fibration $S^3\hookrightarrow S^7\rightarrow S^4$ (and analogously for three qubits) - are these representations unique? Reasoning as in my PS above I see that we need a base of $S^4$, that our full space is $S^7$, and that a trivial tensor product won't do - is the Hopf fibration a unique nontrivial fibration of $S^7$ with base $S^3$?
Apr
22
accepted Intuition behind Fourier transformed spaces
Apr
22
awarded  Commentator
Apr
22
comment Why do we need non-trivial fibrations?
You seem to assume that we want our space to locally look like $S^2\times S^1$ - why? Perhaps there is another way to 'twist and glue the spaces' to get $S^3$ from $S^2$? I agree that the fibration cannot be globally a trivial product, but why do we limit ourselves to Hopf?
Apr
22
asked Why do we need non-trivial fibrations?
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