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- Centre National de la Recherche ScientifiqueFR123 papers
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82 papers · 1 filter
Virasoro OPE and Conformal Blocks from the Inverse Shapovalov Form
Jean-François Fortin, Lorenzo Quintavalle, Witold Skiba
We derive expressions for the Virasoro OPE and four-point conformal blocks on the sphere via the resolution of identity recently determined in [Phys. Rev. D 111, 085010 (2025), arX…
Vacuum Decay Actions from Tunneling Potentials for General Spacetime Dimension
J. R. Espinosa, J. -F. Fortin
The tunneling potential method to calculate the action for vacuum decay is an alternative to the Euclidean bounce method that has a number of attractive features. In this paper we…
Feynman Rules for Scalar Conformal Blocks
Jean-François Fortin, Sarah Hoback, Wen-Jie Ma +2
We complete the proof of "Feynman rules" for constructing -point conformal blocks with external and internal scalars in any topology for arbitrary in any spacetime dimension…
Exactly Solvable Vacuum Decays with Gravity
J. R. Espinosa, J. -F. Fortin, J. Huertas
Using a new approach to the analysis of false vacuum decay based on the so-called tunneling potential, we develop a general method to find scalar potentials with a false vacuum wit…
Recursion relations for 5-point conformal blocks
David Poland, Valentina Prilepina
We consider 5-point functions in conformal field theories in d > 2 dimensions. Using weight-shifting operators, we derive recursion relations which allow for the computation of arb…
Seven-Point Conformal Blocks in the Extended Snowflake Channel and Beyond
Jean-François Fortin, Wen-Jie Ma, Witold Skiba
Seven-point functions have two inequivalent topologies or channels. The comb channel has been computed previously and here we compute scalar conformal blocks in the extended snowfl…