443 reputation
26
bio website folk.ntnu.no/jabirali
location South Korea
age 23
visits member for 2 years, 6 months
seen 2 days ago

I'm currently a student of Applied Physics and Mathematics, and enjoy tinkering with computers in my spare time.


Apr
22
awarded  Yearling
Dec
14
awarded  Critic
Nov
19
awarded  Nice Answer
Nov
9
revised Applying theorem of residues to a correlation function where the Fermi function has no poles
I tried to improved the formatting a bit
Nov
9
comment How to derive or justify the expressions of momentum operator and energy operator?
I was implicitly thinking in the Schroedinger picture, where the equation doesn't hold neither for operators ($\mathbf{p}$ is time-independent, so $\mathbf{\dot{p}} = 0$) nor for eigenvalues (not simultaneously well-defined). I stand corrected :)
Nov
9
revised does light experience time?
added 88 characters in body
Nov
9
suggested suggested edit on Applying theorem of residues to a correlation function where the Fermi function has no poles
Nov
9
answered does light experience time?
Nov
9
answered How to derive or justify the expressions of momentum operator and energy operator?
Nov
9
answered Why is ground state $| 0 \rangle$ of harmonic oscillator a coherent state?
Nov
8
revised Intuitively Re-Deriving Equations of Mathematical Physics
Fixed sign error
Nov
8
revised Intuitively Re-Deriving Equations of Mathematical Physics
Fixed formatting
Nov
8
awarded  Yearling
Nov
8
revised Intuitively Re-Deriving Equations of Mathematical Physics
Added parts about the Helmholtz and wave equation.
Nov
8
revised Intuitively Re-Deriving Equations of Mathematical Physics
Added the expression for the single-particle Schroedinger equation; added 9 characters in body
Nov
8
awarded  Editor
Nov
8
revised Intuitively Re-Deriving Equations of Mathematical Physics
Fixed a sign error
Nov
8
answered Intuitively Re-Deriving Equations of Mathematical Physics
Nov
7
answered Modulus Square of the Gaussian Wave Packet for uncertainty in $p$
Nov
7
comment Is $\langle\psi_1|p\psi_1\rangle$ necessarily 0 for eigenstates?
@OscarDavidArbeláez: The wave function $\Psi(x,t)$ he wrote down has an explicit time-dependence, so I think we can assume he's using the Schroedinger picture. Also, since $\Psi(x,t)$ is a superposition of terms on the form $\psi_i(x) \exp(-iE_i/\hbar)$, the $\psi_i$ should be the Hamiltonian eigenstates.