Information-theoretical interpretation of the thermal hartree-fock approximation
Abstract
The Bogoliubov variational principle is shown to be tantamount to the minimizing of the information gained while replacing the exact state by an approximate one. Consequently, the quasiparticles introduced in the thermal Hartree-Fock approximation may be redefined information-theoretically.
- Publication:
-
Physics Letters A
- Pub Date:
- September 1974
- DOI:
- 10.1016/0375-9601(74)90848-2
- Bibcode:
- 1974PhLA...49..199K