7,985 reputation
2846
bio website N/A
location Vancouver, Canada
age 29
visits member for 4 years
seen Nov 24 at 19:39

Relevant for this page: Experience with Java, C/C++, OpenMP, MPI, Python, Lua Oh, and LaTeX, of course :)

Student of Computer Science and Physics at RWTH Aachen University.


23h
awarded  Yearling
Nov
26
awarded  Enlightened
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26
awarded  Nice Answer
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30
awarded  Explainer
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27
awarded  Pundit
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14
awarded  quantum-mechanics
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9
answered spectral functions
Jul
9
asked Bound states and continua in the spectral function
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awarded  Inquisitive
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awarded  Popular Question
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awarded  Good Question
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answered Perturbation of an operator - Meaning of matrix element
May
27
comment Why does compressing a piston increase the internal energy?
@Emrakul Yes it does, as are all things in thermodynamics. But since we're dealing with so many particles, all these fluctuations average out.
May
27
answered How to interpret $t^2$?
May
27
reviewed Approve suggested edit on What is an $n$ dimensional space?
May
16
comment Why isn't it $E \approx 27.642 \times mc^2$?
But isn't it then a surprise that this ugly number that we call $c$ is also the speed of light?
May
16
comment Why isn't it $E \approx 27.642 \times mc^2$?
But MKSA wasn't explicitly invented to make $E = mc^2$ a prefactorless equation. It's not like the atomic units theorists use where $\hbar$ and $m_e$ and a bunch of other constants come out to $1$.
May
14
reviewed Approve suggested edit on Where did this equation come from ∠I+ ∠E = ∠A+ ∠D?
May
14
comment Effective Hamiltonian / Perturbation theory for non-degenerate case
Mh, I see. If the entire low-energy subspace is degenerate, then a good approximation is to set $z = E_0$ with $E_0$ the energy of the subspace without the perturbation. That way, you get an effective Hamiltonian that's energy independent. I was hoping for something similar but now with different energy levels in the subspace.