Abstract
We explore a variety of unsolved problems in density functional theory, where mathematicians might prove useful. We give the background and context of the different problems, and why progress toward resolving them would help those doing computations using density functional theory. Subjects covered include the magnitude of the kinetic energy in Hartree–Fock calculations, the shape of adiabatic connection curves, using the constrained search with input densities, densities of states, the semiclassical expansion of energies, the tightness of Lieb–Oxford bounds, and how we decide the accuracy of an approximate density.
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Data Availability
The datasets generated during and/or analyzed during the current study are available upon request from the corresponding authors.
References
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Acknowledgements
S.C., B. K. and K. B. acknowledge support from NSF grant No. CHE-2154371. R.P. acknowledges support from DOE DE-SC0008696. J.K. acknowledges support from DOE Award No. DE-FG02-08ER46496. K.D. acknowledges support from NSF grant DMS-1708511. A.W. acknowledges support from NSF grant CHE-1900301.
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Crisostomo, S., Pederson, R., Kozlowski, J. et al. Seven useful questions in density functional theory. Lett Math Phys 113, 42 (2023). https://doi.org/10.1007/s11005-023-01665-z
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DOI: https://doi.org/10.1007/s11005-023-01665-z
Keywords
- Density functional theory
- Electronic structure theory
- Semiclassical physics
- Quantum chemistry
- Quantum physics