cc.redberry.physics.oneloopdiv

Class OneLoopUtils

java.lang.Object

cc.redberry.physics.oneloopdiv.OneLoopUtils

public final class OneLoopUtils
extends java.lang.Object

Method Summary

Modifier and Type	Method and Description
static Expression[]	antiDeSitterBackground() This method return the definition of the anti de Sitter background, with the cosmological constant denoted as La.
static void	setUpRiemannSymmetries()

Methods inherited from class java.lang.Object

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

Method Detail

antiDeSitterBackground

public static Expression[] antiDeSitterBackground()

This method return the definition of the anti de Sitter background, with the cosmological constant denoted as La. In other words it returns the following two substitutions:

     Tensors.parseExpression("R_{lmab} = (1/3)*(g_{lb}*g_{ma}-g_{la}*g_{mb})*La");
     Tensors.parseExpression("R_{lm} = -g_{lm}*La");
 

Returns:

the definition of the anti de Sitter background, with the cosmological constant denoted as La.

setUpRiemannSymmetries

public static void setUpRiemannSymmetries()