Help with renormalization...


by eljose
Tags: renormalization
eljose
eljose is offline
#1
Dec13-05, 06:41 AM
P: 501
for a divergent series i can write an expression in the form:

[tex]\int_{R}dxC(x)w(x)e^{-ax} [/tex]

where a is a divegent quantity in the form [tex]a=ln\epsilon[/tex]

the qeustion is how i would apply renormalization?..in fact if we apply functional differentiation respect to e^{-ax} we get

[tex]C(x)w(x) [/tex] the divergent term magically disappears
Phys.Org News Partner Science news on Phys.org
Simplicity is key to co-operative robots
Chemical vapor deposition used to grow atomic layer materials on top of each other
Earliest ancestor of land herbivores discovered
Tom Mattson
Tom Mattson is offline
#2
Dec25-05, 04:43 PM
Emeritus
Sci Advisor
PF Gold
Tom Mattson's Avatar
P: 5,540
Moving from Homework Help.


Register to reply

Related Discussions
reading about renormalization Quantum Physics 8
divergent series in perturbation theory of quantum field theory Quantum Physics 2
How much is this renormalization business a problem in QFT? Quantum Physics 3
renormalize some theories Quantum Physics 6