retarded Hamiltonian

Игры ⚽ Нужно решить контрольную?

Green's function (many-body theory) — In many body theory, the term Green s function (or Green function) is sometimes used interchangeably with correlation function, but refers specifically to correlators of field operators or creation and annihilation operators.The name comes from… … Wikipedia
Paul Dirac — Paul Adrien Maurice Dirac Born Paul Adrien Maurice Dirac 8 August 1902(1902 08 08) Bristol, England … Wikipedia
Propagator — This article is about Quantum field theory. For plant propagation, see Plant propagation. Quantum field theory … Wikipedia
Field (physics) — The magnitude of an electric field surrounding two equally charged (repelling) particles. Brighter areas have a greater magnitude. The direction of the field is not visible … Wikipedia
Gauge fixing — Quantum field theory (Feynman diagram) … Wikipedia
celestial mechanics — the branch of astronomy that deals with the application of the laws of dynamics and Newton s law of gravitation to the motions of heavenly bodies. [1815 25] * * * Branch of astronomy that deals with the mathematical theory of the motions of… … Universalium

Словари и энциклопедии на Академике