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How to see that the Ising CFT has $c = 1/2$ while the quantum XY CFT has $c = 1$ via Jordan-Wigner?

I think the following quote from your post is the incorrect way of thinking about things: However, the above implies that in the Ising case, only one of the underlying Majorana species participates ...
Zack's user avatar
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How to see that the Ising CFT has $c = 1/2$ while the quantum XY CFT has $c = 1$ via Jordan-Wigner?

Try drawing a picture. In a lattice of fermionic sites, there are two Majoranas $\alpha_j$ and $\beta_j$ on each site. Draw a dot for each of these Majoranas. Connect two Majorana "dots" $\...
Nandagopal Manoj's user avatar
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Why is the Ramond vacuum a Majorana fermion in type II string theory?

Majorana spinors on the worldsheet guarantee worldsheet supersymmetry as you say. Are you trying to prove this fact and also prove that it implies a supersymmetric spectrum? Or just the latter? The ...
Connor Behan's user avatar
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