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Nov
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Nov
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accepted How is the index of refraction dependence in Planck's law compatible with thermodynamics?
Nov
26
accepted B3LYP vs PBE functionals for conjugated organic systems
Nov
26
answered B3LYP vs PBE functionals for conjugated organic systems
Nov
26
comment B3LYP vs PBE functionals for conjugated organic systems
Thanks for your advice. I don't plan on changing functionals; DFT is not my area of expertise, and I'd rather understand the performance of one or two functionals instead of using a different one for each situation. Still very helpful though.
Nov
7
revised B3LYP vs PBE functionals for conjugated organic systems
deleted 95 characters in body
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answered Can the total amount of energy in the entire universe be quantified?
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reviewed Approve suggested edit on B3LYP vs PBE functionals for conjugated organic systems
Nov
6
comment Liquid nitrogen condensing oxygen out of the air
Remember that it's possible to cool something below ambient by evaporating a solvent. Using evaporative refrigeration of liquid helium it's possible to cool well below 1 K, even though helium boils at ~1 K.
Nov
6
revised B3LYP vs PBE functionals for conjugated organic systems
Added research-level tag; removed 'other functionals' from question
Nov
6
comment B3LYP vs PBE functionals for conjugated organic systems
@user26143 There isn't much about DFT on either site, and I'm a physicist, and so is Kohn, although he got the Nobel Prize in Chemistry. Maybe if there is no answer on here after a couple days I'll try on CSE.
Nov
6
asked B3LYP vs PBE functionals for conjugated organic systems
Apr
20
comment What is the mathematical justification for the quadratic approximation to the energy of a spring in a one-dimensional lattice?
Mephisto and I had a somewhat substantial discussion about this question, which I moved to chat.
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19
comment Exact Beta Functions in Statistical Mechanics
If you're not aware of it, you must check out Baxter's book!
Apr
19
comment Overcharging a black hole
@BenCrowell Thanks -- answer updated.