perturbation theor
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Cosmological perturbation theory — See also: structure formation , cosmic microwave background radiation , and general relativity In physical cosmology, cosmological perturbation theory is the theory by which the evolution of structure is understood in the big bang model. It… … Wikipedia
Causal perturbation theory — is a mathematically rigorous approach to renormalization theory, which makesit possible to put the theoretical setup of perturbative quantum field theory on a sound mathematical basis.It goes back to a seminal work by Henri Epstein and Vladimir… … Wikipedia
BRST quantization — In theoretical physics, BRST quantization (where the BRST refers to Becchi, Rouet, Stora and Tyutin) is a relatively rigorous mathematical approach to quantizing a field theory with a gauge symmetry. Quantization rules in earlier QFT frameworks… … Wikipedia
Quantum gravity — is the field of theoretical physics attempting to unify quantum mechanics, which describes three of the fundamental forces of nature (electromagnetism, weak interaction, and strong interaction), with general relativity, the theory of the fourth… … Wikipedia
Theorie de la reponse lineaire — Théorie de la réponse linéaire En physique statistique hors d équilibre, la théorie de la réponse linéaire permet de définir les susceptibilités et les coefficients de transport d un système au voisinage de l équilibre thermique indépendamment… … Wikipédia en Français
Théorie de la réponse linéaire — En physique statistique hors d équilibre, la théorie de la réponse linéaire permet de définir les susceptibilités et les coefficients de transport d un système au voisinage de l équilibre thermique indépendamment des détails du modèle. La théorie … Wikipédia en Français
String theory — This article is about the branch of theoretical physics. For other uses, see String theory (disambiguation). String theory … Wikipedia
irrégularité — [ iregylarite ] n. f. • XIVe; bas lat. irregularitas 1 ♦ Caractère, aspect irrégulier (des choses qui manquent de régularité). Irrégularité d un pavage; d un phénomène, d une situation, d un bâtiment (⇒ asymétrie) . Irrégularité du travail fourni … Encyclopédie Universelle
General relativity — For a generally accessible and less technical introduction to the topic, see Introduction to general relativity. General relativity Introduction Mathematical formulation Resources … Wikipedia
RKKY interaction — RKKY stands for Ruderman Kittel Kasuya Yosida and refers to a coupling mechanism of nuclear magnetic moments or localized inner d or f shell electron spins in a metal by means of an interaction through the conduction electrons. The RKKY… … Wikipedia
Multipole expansion — A multipole expansion is a mathematical series representing a function that depends on angles usually the two angles on a sphere. These series are useful because they can often be truncated, meaning that only the first few terms need to be… … Wikipedia
