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Graduate student in the arcane arts of cond-mat theory. (Perhaps theory is too strong a word -- make that numerics... :)


Oct
13
answered what is the clear cut difference between isotropic and anisotropic spin exchanges
Sep
24
awarded  Autobiographer
Aug
24
answered Why is the Hubbard model written down so late?
Aug
24
comment Atomic nearest neighbor notation
It wouldn't make a damn lick of sense, but I have seen the notation NN, NNN, etc. referring to two-nucleon, three-nucleon, etc. interactions in an EFT context. Otherwise I've definitely seen both notations in condensed matter, with the NN,2NN,3NN,etc... notation being much more common.
Jun
30
awarded  Popular Question
Jun
10
reviewed Approve suggested edit on Newton and the change of mass with time
Jun
9
reviewed Approve suggested edit on What is the duration of a snap?
Jun
9
reviewed Approve suggested edit on What happens when work function = hf
Jun
8
reviewed Approve suggested edit on Calculating probability current for scattering problem
Jun
1
reviewed Approve suggested edit on Omega-frequency or pulsation?
Jun
1
reviewed Approve suggested edit on Kane and Mele's argument on the existence of edge states in quantum spin Hall effect of graphene
May
27
answered Hamiltonian for the Periodic Kitaev Model
Apr
27
comment Is $\frac{\partial}{\partial \Phi(y)} \Phi (x) = \delta(x-y)$ correct?
This is a basic property of "functional derivatives" though usually a $\delta$ symbol is used instead of the partial derivative $\partial$. Wikipedia isn't the worst resource for this: en.wikipedia.org/wiki/…
Apr
6
comment Would QM be detectable in a all boson universe
*HBT interferometry: en.wikipedia.org/wiki/Hanbury_Brown_and_Twiss_effect
Apr
6
comment Would QM be detectable in a all boson universe
The same way we always detect them: Bose condensation, HBT interferometry*, etc... Of course, as a matter of principle, we and all of our instruments are made of fermions, so we wouldn't be there in the all-boson universe to do the measurements, but QM would be there.
Apr
5
answered Would QM be detectable in a all boson universe
Dec
10
awarded  Yearling
Dec
9
awarded  Nice Question
Nov
17
comment A commutation problem in Hubbard model
Why not calculate the commutator and find out?
Sep
25
awarded  Taxonomist