Question
Many post-Hartree-Fock methods have been created to account for the difference between the predicted and exact energies of a system. For 10 points each:
[10m] Name this phenomenon that provides the name of that difference. This phenomenon and exchange are combined in a namesake “energy” in the Kohn-Sham equations.
ANSWER: electron correlation [accept, but DO NOT REVEAL, Coulomb correlation]
[10e] One form of electron correlation based on the repulsion between electrons in a system is named for this physicist, who lends his name to an inverse-square law that describes the electric force between two charged objects.
ANSWER: Charles-Augustin de Coulomb [accept Coulomb correlation or Coulomb’s law]
[10h] This method accounts for correlation by using a linear combination of eponymous state functions as a variational wavefunction. Truncated versions of this method may have the Davidson correction applied to them to account for higher excited states.
ANSWER: configuration interaction [or CI; accept any combination of CI with the letters S, D, T, or Q appended to it, such as CISD or CISDTQ]
<Omer, Chemistry>
Summary
| 2024 ESPN @ Brown | 04/06/2024 | Y | 2 | 25.00 | 100% | 100% | 50% |
| 2024 ESPN @ Cambridge | 04/06/2024 | Y | 2 | 20.00 | 100% | 50% | 50% |
| 2024 ESPN @ Chicago | 03/23/2024 | Y | 6 | 16.67 | 100% | 50% | 17% |
| 2024 ESPN @ Columbia | 03/23/2024 | Y | 7 | 12.86 | 100% | 29% | 0% |
| 2024 ESPN @ Duke | 03/23/2024 | Y | 2 | 25.00 | 100% | 100% | 50% |
| 2024 ESPN @ Online | 06/01/2024 | Y | 3 | 20.00 | 100% | 67% | 33% |
Data
| 1.g4 Test Mixture | JinAh and Jordan from Wikiquiz | 10 | 10 | 0 | 20 |
| mnemonists | Let's Fighting Love | 0 | 10 | 0 | 10 |
| protobowling for soup | NJ TRANSit (and bobby i guess) | 0 | 10 | 0 | 10 |
| The Aum-Wein Drinchard by Amogh Tutuola | Sandmännchen im Helikopter | 0 | 10 | 0 | 10 |
| boy's jitches (ft. DMA) | Parden the Interruption | 0 | 10 | 0 | 10 |
| bruh | Naocissus and Geoldmond by Hermandrew Hesse | 10 | 10 | 0 | 20 |
| JJaryland | chamPAIN and cornHELL in Columbia | 0 | 10 | 0 | 10 |