Monday, July 29, 2013

1307.6863 (Yejin Huh et al.)

Conserved current correlators of conformal field theories in 2+1

Yejin Huh, Philipp Strack, Subir Sachdev
We compute current correlators of the CP^{N-1} field theory in 2+1 dimensions, both at the critical point and in the phase with spontaneously broken SU(N) symmetry. Universal constants are obtained to next-to-leading order in the 1/N expansion. Implications are noted for quantum critical points of antiferromagnets, and their vicinity.
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