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One-loop beta functions in topologically massive gravity
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DOI：10.1088/0264-9381/27/15/155009.png)
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Abstract
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We calculate the running of the three coupling constants in cosmological, topologically massive 3D gravity. We find that., the dimensionless coefficient of the Chern-Simons term, has a vanishing beta function. The flow of the cosmological constant and Newton's constant depends on., and for any positive. there exist both a trivial and a nontrivial fixed point.
Keywords:
RENORMALIZATION-GROUP
ULTRAVIOLET PROPERTIES
EVOLUTION EQUATION
ASYMPTOTIC SAFETY
QUANTUM-GRAVITY
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