Común · Historia

Dyson series

Perturbative expansion of the time evolution operator in the interaction picture

Texto en inglés

In scattering theory, a part of mathematical physics, the Dyson series, formulated by Freeman Dyson, is a perturbative expansion of the time evolution operator in the interaction picture. Each term in the expansion can be represented by a sum of Feynman diagrams.

En Wikipedia

Texto en inglés Aún no hay artículo en tu idioma: extracto en inglés.

In scattering theory, a part of mathematical physics, the Dyson series, formulated by Freeman Dyson, is a perturbative expansion of the time evolution operator in the interaction picture. Each term in the expansion can be represented by a sum of Feynman diagrams. This series diverges asymptotically, but in quantum electrodynamics (QED) at the second order the difference from experimental data is in the order of 10−10. This close agreement holds because the coupling constant (also known as the fine-structure constant) of QED is much less than 1.

Texto: Wikipedia en inglés, CC BY-SA 4.0. ·

Cartas cercanas

Abrir

…

Toca para cerrar

Confirmación