About: Gamma matrices     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:Science105999797, within Data Space : dbpedia.org associated with source document(s)
QRcode icon
http://dbpedia.org/describe/?url=http%3A%2F%2Fdbpedia.org%2Fresource%2FGamma_matrices

In mathematical physics, the gamma matrices, , also called the Dirac matrices, are a set of conventional matrices with specific anticommutation relations that ensure they generate a matrix representation of the Clifford algebra Cl1,3. It is also possible to define higher-dimensional gamma matrices. When interpreted as the matrices of the action of a set of orthogonal basis vectors for contravariant vectors in Minkowski space, the column vectors on which the matrices act become a space of spinors, on which the Clifford algebra of spacetime acts. This in turn makes it possible to represent infinitesimal spatial rotations and Lorentz boosts. Spinors facilitate spacetime computations in general, and in particular are fundamental to the Dirac equation for relativistic spin-1/2 particles.

AttributesValues
rdf:type
rdfs:label
  • Dirac-Matrizen (de)
  • Matrices gamma (es)
  • Matrice de Dirac (fr)
  • Gamma matrices (en)
  • Gamma di Dirac (it)
  • 디랙 행렬 (ko)
  • ガンマ行列 (ja)
  • Gamma-matrices (nl)
  • Macierze gamma (pl)
  • Matrizes gama (pt)
  • Матрицы Дирака (ru)
  • Матриці Дірака (uk)
  • 狄拉克矩陣 (zh)
rdfs:comment
  • Die Dirac-Matrizen (nach dem britischen Physiker Paul Dirac), auch Gamma-Matrizen genannt, sind vier Matrizen, die der Dirac-Algebra genügen. Sie treten in der Dirac-Gleichung auf. (de)
  • Les matrices de Dirac sont des matrices qui furent introduites par Paul Dirac, lors de la recherche d'une équation d'onde relativiste de l'électron. (fr)
  • 수리물리학에서 디랙 행렬(Dirac matrices) 혹은 감마 행렬(gamma matrices)은 민코프스키 공간의 계량 텐서에 해당하는 클리퍼드 대수 Cl(1,3)을 하는 네 개의 4×4 행렬 이다. 이들은 로런츠 변환을 따르지 않아, 4차원 벡터를 이루지 않지만, 이들은 스피너와 곱하여 로런츠 변환을 따르는 스칼라, 벡터, 텐서를 만드는 데 쓰인다. 디랙 행렬은 여러 방법으로 정의할 수 있다. 이들은 다 같은 클리퍼드 대수를 나타낸다는 점에서 동등하나, 실제 계산에서는 특정 표현이 다른 표현보다 유용한 경우가 있다. 이런 정의하는 방법에는 디랙 표현(Dirac representation), 바일 표현(Weyl representation, 혹은 손지기 표현), 마요라나 표현(Majorana representation) 등이 있다.디랙 표현은 다음과 같다. 여기서 I는 2×2 단위행렬이고, σ는 파울리 행렬이다. 바일 표현으로는 마요라나 표현으로는 이 네 행렬 말고도, 통상적으로 다섯 번째 디랙 행렬을 다음과 같이 정의한다. 이들을 이용하여, 디랙 스피너 가 주어지면, 는 로런츠 불변의 스칼라, 는 (pseudoscalar), 는 벡터를 이룬다. (ko)
  • Le matrici gamma di Dirac sono un insieme di matrici che formano una rappresentazione dell'algebra di Clifford. Sono utilizzate nell'equazione di Dirac e sono state formulate per conciliare la meccanica quantistica con la relatività ristretta. (it)
  • ガンマ行列(ガンマぎょうれつ、英: gamma matrices)、あるいはディラック行列(ディラックぎょうれつ、英: Dirac matrices)とは、反交換関係 によって定義される行列の組。場の理論におけるディラック場の記述に応用される。物理学者ポール・ディラックが相対論的な波動方程式としてディラック方程式を導く際に導入した。 (ja)
  • Ма́трицы Дира́ка (также известные как га́мма-ма́трицы) — набор матриц, удовлетворяющих особым антикоммутационным соотношениям. Часто используются в релятивистской квантовой механике. (ru)
  • Macierze γ, macierze Diraca – zbiór czterech macierzy zespolonych stosowanych w relatywistycznej mechanice kwantowej. (pl)
  • Em física matemática, as matrizes gama, , também conhecidas como matrizes de Dirac, são um conjunto de matrizes que satisfazem uma determinada relação de anticomutação que assegura que essas matrizes geram a álgebra de Clifford Cℓ1,3(R). Na representação de Dirac, as quatro matrizes covariantes de Dirac se escrevem (pt)
  • 在理論物理學中,狄拉克矩陣,又稱γ矩陣,是狄拉克方程中所引入的四个矩阵,它们是泡利矩阵的推广,满足: ,其中的上標,依據愛因斯坦求和約定,其為偽標量(不是冪次方的意思)。 狄拉克表象四个矩阵: (zh)
  • Матриці Дірака — матриці 4-го рангу, які використовуються у рівнянні Дірака. (uk)
  • En física matemática, las matrices gamma, , también conocidas como matrices de Dirac, son un conjunto de matrices convencionales junto con unas relaciones de anticonmutación que aseguran que generen una representación matricial del álgebra de Clifford . También es posible definir matrices gamma en más dimensiones. Interpretadas como las matrices de la acción de un conjunto de vectores de una base ortogonal para vectores contravariantes en el espacio de Minkowski, los vectores columna sobre los que actúa la matriz se transforman en un espacio de espinores, sobre los que actúa el álgebra de Clifford del espaciotiempo. Esto a su vez hace posible representar rotaciones espaciales y transformaciones de Lorentz infinitesimales. El empleo de espinores en general facilita los cálculos en el espaci (es)
  • In mathematical physics, the gamma matrices, , also called the Dirac matrices, are a set of conventional matrices with specific anticommutation relations that ensure they generate a matrix representation of the Clifford algebra Cl1,3. It is also possible to define higher-dimensional gamma matrices. When interpreted as the matrices of the action of a set of orthogonal basis vectors for contravariant vectors in Minkowski space, the column vectors on which the matrices act become a space of spinors, on which the Clifford algebra of spacetime acts. This in turn makes it possible to represent infinitesimal spatial rotations and Lorentz boosts. Spinors facilitate spacetime computations in general, and in particular are fundamental to the Dirac equation for relativistic spin-1/2 particles. (en)
  • Gamma-matrices zijn anticommuterende 4x4-matrices die voldoen aan de relaties en voor waar de 4x4-eenheidsmatrix is. Deze relaties kunnen samengevat worden als . is de metrische tensor . Er zijn veel mogelijkheden om te voldoen aan deze relaties. Het is gebruikelijk het product van de vier gamma-matrices te noteren als . De gamma-matrices vinden vooral toepassing in de relativistische kwantumveldentheorie, bij het beschrijven van de elektromagnetische wisselwerking van fermionen. De Diracvergelijking kan in relativistische eenheden worden geschreven als Dirac-matrices . Weyl-matrices . (nl)
dcterms:subject
Wikipage page ID
Wikipage revision ID
Link from a Wikipage to another Wikipage
Faceted Search & Find service v1.17_git139 as of Feb 29 2024


Alternative Linked Data Documents: ODE     Content Formats:   [cxml] [csv]     RDF   [text] [turtle] [ld+json] [rdf+json] [rdf+xml]     ODATA   [atom+xml] [odata+json]     Microdata   [microdata+json] [html]    About   
This material is Open Knowledge   W3C Semantic Web Technology [RDF Data] Valid XHTML + RDFa
OpenLink Virtuoso version 08.03.3330 as of Mar 19 2024, on Linux (x86_64-generic-linux-glibc212), Single-Server Edition (62 GB total memory, 50 GB memory in use)
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2024 OpenLink Software