Error Bounds for Properties in Planewave Electronic Structure Calculations

Error Bounds for Properties in Planewave Electronic Structure Calculations

Institute for Pure & Applied Mathematics (IPAM) via YouTube Direct link

Improved error bound

21 of 23

21 of 23

Improved error bound

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Error Bounds for Properties in Planewave Electronic Structure Calculations

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  1. 1 Intro
  2. 2 Computing properties of materials systems
  3. 3 Outline
  4. 4 Density Functional Theory
  5. 5 Modelling crystalline systems
  6. 6 Errors arising in the course of the calculation
  7. 7 The perfect error bound
  8. 8 Abstract formulation
  9. 9 Guaranteed bounds
  10. 10 Main difficulties for applications to DFT
  11. 11 Formulation of the DFT ground state problem
  12. 12 Discretization with planewaves
  13. 13 First-order optimality conditions
  14. 14 Orthogonal projectors vs orbitals
  15. 15 Second-order geometry
  16. 16 Linearization in the asymptotic regime
  17. 17 Linearization : Numerical results
  18. 18 Choosing an adequate norm
  19. 19 Results: Force estimation for Silicon
  20. 20 Frequency splitting
  21. 21 Improved error bound
  22. 22 New estimation on the forces
  23. 23 Conclusion

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