Abstract : In this paper, we rigorously construct $2d$ Liouville Quantum Field Theory on the Riemann sphere introduced in the 1981 seminal work by Polyakov "Quantum Geometry of bosonic strings". We also establish some of its fundamental properties like conformal covariance under PSL$_2(\mathbb{C})$-action, Seiberg bounds, KPZ scaling laws, KPZ formula and the Weyl anomaly (Polyakov-Ray-Singer) formula for Liouville Quantum Gravity.
https://hal-cea.archives-ouvertes.fr/cea-01509870
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Submitted on : Tuesday, April 18, 2017 - 4:10:33 PM Last modification on : Thursday, November 26, 2020 - 10:16:02 AM Long-term archiving on: : Wednesday, July 19, 2017 - 3:24:12 PM
François David, Antti Kupiainen, Rémi Rhodes, Vincent Vargas. Liouville Quantum Gravity on the Riemann sphere. Communications in Mathematical Physics, Springer Verlag, 2016, 342, pp.869 - 907. ⟨10.1007/s00220-016-2572-4⟩. ⟨cea-01509870⟩