cc.redberry.physics.feyncalc

Class DiracTraceTransformation

java.lang.Object

cc.redberry.physics.feyncalc.DiracTraceTransformation

All Implemented Interfaces:

Transformation

public class DiracTraceTransformation
extends java.lang.Object
implements Transformation

Calculate traces of gamma matrices in four dimensions.

Nested Class Summary

Nested classes/interfaces inherited from interface cc.redberry.core.transformations.Transformation

Transformation.Util

Field Summary

Fields inherited from interface cc.redberry.core.transformations.Transformation

INDENTITY

Constructor Summary

Constructors

Constructor and Description
DiracTraceTransformation(SimpleTensor gammaMatrix) Creates transformation with specified notation for gamma matrix.
DiracTraceTransformation(SimpleTensor gammaMatrix, SimpleTensor gamma5, SimpleTensor leviCivita) Creates transformation with specified notations for gamma matrices and Levi-Civita tensor.
DiracTraceTransformation(SimpleTensor gammaMatrix, SimpleTensor gamma5, SimpleTensor leviCivita, boolean minkowskiSpace) Creates transformation with specified notations for gamma matrices and Levi-Civita tensor.

Method Summary

Modifier and Type	Method and Description
static void	resetCache()
Tensor	transform(Tensor tensor) Transforms specified tensor and returns the result.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DiracTraceTransformation

public DiracTraceTransformation(SimpleTensor gammaMatrix)

Creates transformation with specified notation for gamma matrix.

Parameters:

gammaMatrix - tensor, which will be considered as gamma matrix

DiracTraceTransformation

public DiracTraceTransformation(SimpleTensor gammaMatrix,
                                SimpleTensor gamma5,
                                SimpleTensor leviCivita)

Creates transformation with specified notations for gamma matrices and Levi-Civita tensor.

Parameters:

gammaMatrix - tensor, which will be considered as gamma matrix

gamma5 - tensor, which will be considered as gamma5 matrix

leviCivita - tensor, which will be considered as Levi-Civita tensor

DiracTraceTransformation

public DiracTraceTransformation(SimpleTensor gammaMatrix,
                                SimpleTensor gamma5,
                                SimpleTensor leviCivita,
                                boolean minkowskiSpace)

Creates transformation with specified notations for gamma matrices and Levi-Civita tensor.

Parameters:

gammaMatrix - tensor, which will be considered as gamma matrix

gamma5 - tensor, which will be considered as gamma5 matrix

leviCivita - tensor, which will be considered as Levi-Civita tensor

minkowskiSpace - if true, then Levi-Civita tensor will be considered in Minkovski space (so e.g. e_abcd*e^abcd = -24), otherwise in Euclidean space (so e.g. e_abcd*e^abcd = +24)

Method Detail

transform

public Tensor transform(Tensor tensor)

Description copied from interface: Transformation

Transforms specified tensor and returns the result.

Specified by:

transform in interface Transformation

Parameters:

tensor - tensor

Returns:

transformed tensor

resetCache

public static void resetCache()