Allie

meow

i hate militaries

you must be enlightened now

hbu?

@TobiasFünke im eh, gonna get my nails done and try to do some studying today i think

why are people so invested in the idea that the science establishment is hiding stuff and doesnt want these big discoveries to come out

hiya tobiya

is it?

of course that approximation gets better as the size of the supercell gets bigger but we're taking the approximation anyways so it doesn't matter

that is, the DOS is $g(\omega) = 9N\omega^2/\omega_D^3$ has no dependence on the system size beyond a multiplicative constant

Because you approximate the DOS as continuous, the result you get seems to be completely independent of what the size of your supercell is

@naturallyInconsistent I think I realized why it might not matter, right before I went to bed

In the Debye model using BVK boundary conditions, you can't have any phonons with k-vector shorter than 2pi/L but that's generally fine because those states are very low in energy and have low DOS anyways, right

Or alternatively, so that your D.O.F. is the correct amount you expect for N atoms?

So in the Debye model, is it correct to say that you're basically treating a solid like a continuum but putting a limit on what wavelengths you consider based on the atomic spacing, so that you don't double count equivalent waves?

i hate thermodynamics

meow

(although any k-vector outside the first Brillouin zone is just a repeat)

in an infinite crystal (let's say monatomic), there is an allowed state for every possible k-vector, correct?

meow

besides ill still be a student for the next 5 years, no? a phd student

but i disagre

@TobiasFünke everyone keeps saying thi

not work on a stupid lab report

i just want to study solid state rn :(

i cant fail my classes

nooo

im so excited to be done with undergrad this semester!!!!

i dont want to do this stupid lab report

motivation is hard

hi guys

not sure if i answered ur question the other day, yes I am still working in DFT

tobias hiyas

hiiiii

id rather consult resources made by humans who know exactly what theyre doing then sift through a computers mistakes

yeah im never gonna do that

hi girls

good night

meow

are you talking to me?

im done being trapped at 0K

its cool ive always wanted ot get into this im finally dipping my toes

i like stat mech so far though

(theoretical chemist)

ive neevr heard it referred to as just the catastrophe but i guess im a FAKE physicist

ah

the catastrophe?

facepalm

i was literally about to say how convenient, FD for fermion and BE for boson. then i realized fermion comes from fermi and boson comes from bose

FD for fermions, BE for bosons