Non-canonical terms of scalar fields


by TimeFall
Tags: fields, k-essence, noncanonical, scalar, scalar field, terms
TimeFall
TimeFall is offline
#1
Feb5-14, 02:14 PM
P: 6
Hello! Well, I guess it's all in the title, really. I was reading about k-essence, and it was described as a scalar field having a non-canonical kinetic term. I did a bit of browsing and couldn't find a clear explanation of what, exactly, a non-canonical kinetic term is. Any help would be greatly appreciated! Thanks!
Phys.Org News Partner Physics news on Phys.org
A 'quantum leap' in encryption technology
Using antineutrinos to monitor nuclear reactors
Bake your own droplet lens
Bill_K
Bill_K is offline
#2
Feb5-14, 02:28 PM
Sci Advisor
Thanks
Bill_K's Avatar
P: 3,864
I just peeked at probably the same paper you're reading, and it says that non-canonical kinetic energy means that instead of using X = ∂μφ ∂μφ for the kinetic energy, he uses some function of it, F(X).


Register to reply

Related Discussions
Scalar Product of Momentum Eigenvectors in terms of Little Group Representation Quantum Physics 0
The SUSY F and D terms, and the scalar potential High Energy, Nuclear, Particle Physics 1
Are all quadratic terms in gauge fields necessarily mass terms? Quantum Physics 0
[QFT] Feynman rules for self-interacting scalar field with source terms Advanced Physics Homework 2
Complex Scalar Field in Terms of Two Independent Real Fields Quantum Physics 4