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Noncanonical terms of scalar fields 
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#1
Feb514, 02:14 PM

P: 8

Hello! Well, I guess it's all in the title, really. I was reading about kessence, and it was described as a scalar field having a noncanonical kinetic term. I did a bit of browsing and couldn't find a clear explanation of what, exactly, a noncanonical kinetic term is. Any help would be greatly appreciated! Thanks!



#2
Feb514, 02:28 PM

Sci Advisor
Thanks
P: 4,160

I just peeked at probably the same paper you're reading, and it says that noncanonical kinetic energy means that instead of using X = ½∂_{μ}φ ∂^{μ}φ for the kinetic energy, he uses some function of it, F(X).



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