Central charge bounds in 4D conformal field theory

We derive model-independent lower bounds on the stress tensor central charge C-T in terms of the operator content of a 4-dimensional conformal field theory. More precisely, C-T is bounded from below by a universal function of the dimensions of the lowest and second-lowest scalars present in the conformal field theory. The method uses the crossing symmetry constraint of the 4-point function, analyzed by means of the conformal block decomposition.


Published in:
Physical Review D, 83, -
Year:
2011
Keywords:
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 Record created 2011-12-16, last modified 2018-01-28


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