Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2008-04-23
JHEP0807:109,2008
Physics
High Energy Physics
High Energy Physics - Theory
Improved version to appear in JHEP
Scientific paper
10.1088/1126-6708/2008/07/109
We give a non-trivially interacting field theory example of scale invariant but non-conformal field theory. The model is based on the exactly solvable Liouville field theory coupled with free scalars deformed by an exactly marginal operator. We show non-vanishing of the trace of the energy-momentum tensor by using the quantum Schwinger-Dyson equation for the Liouville field theory, which is a sophistication of the quantum higher equations of motion for the Liouville field theory introduced by Alyosha Zamolodchikov. Possibly dangerous implications for the super-critical string theory will be discussed.
Ho Chiu Man
Nakayama Yu
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