1,336 reputation
2828
bio website
location
age
visits member for 2 years, 4 months
seen 2 days ago

Nov
21
suggested suggested edit on Some conceptual questions in BEC
Nov
20
comment Eigenvectors of the angular momentum operator $S_x$
An eigenvector $(a,b)$ represents a state that has a probability of $|a|^2$ being spin up, and a probability of $|b|^2$ being spin down. For the probabilities to sum to one, the eigenvector must be normalized.
Nov
20
comment Interpreting a Hamiltonian in terms of 'hopping' operators
What are $a$, $b$, and $\tau$?
Nov
7
revised Is $\langle\psi_1|p\psi_1\rangle$ necessarily 0 for eigenstates?
fix grammar
Nov
7
suggested suggested edit on Is $\langle\psi_1|p\psi_1\rangle$ necessarily 0 for eigenstates?
Oct
18
awarded  Popular Question
Oct
9
revised A naive question on the $U(1)$ gauge transformation of electromagnetic field?
fixed latex
Oct
9
suggested suggested edit on A naive question on the $U(1)$ gauge transformation of electromagnetic field?
Oct
3
comment Mean-field approximation of the disordered state of Heisenberg model
@MarkMitchison Thanks for the explanation on mean-field theory. I am interested in the dynamics, in particular the spin susceptibility. So, I would need something more than a vanishing Hamiltonian.
Oct
3
comment Mean-field approximation of the disordered state of Heisenberg model
@MarkMitchison While the magnetization at each site is zero in the disordered phase, there may still be correlation between different sites. Perhaps such correlation can be used as an order parameter? In any case, I would expect there to be a better approximation than a vanishing Hamiltonian.
Oct
3
awarded  Nice Question
Oct
3
asked Mean-field approximation of the disordered state of Heisenberg model
Oct
1
suggested suggested edit on Angular Momentum Conservation in Gravitational Interaction
Oct
1
asked Hubbard-Stratonovich transformation and mean-field approximation
Sep
7
asked Rate of evaporation of water
Sep
7
revised CHSH Inequality: why $\pi/8$?
tex
Sep
7
suggested suggested edit on CHSH Inequality: why $\pi/8$?
Sep
1
comment Tension on pulleys Physics Question
Could you explain what are you trying to do when you write $\sin 77.32/50 = \sin 12.68/P$?
Aug
26
awarded  Popular Question
Jul
21
reviewed No Action Needed How can we deduce the relation $m = \frac{m_0}{\sqrt{1-\frac{v^2}{c^2}}}$ between relativistic mass and rest mass in special relativity?