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228 papers · 1 filter
Leading low-temperature correction to the Heisenberg-Euler Lagrangian
Felix Karbstein
In this note, we show that the well-known leading low-temperature correction to the Heisenberg-Euler Lagrangian in a constant electromagnetic field arising at two loops can be effi…
Flat Holography & Holographic Renormalization: Scalar Field
Martin Ammon, Federico Capone, Christoph Sieling
We adapt the Hamilton-Jacobi method of holographic renormalization to scalar field theories in Minkowski spacetime with scattering boundary conditions. The approach yields a flat-s…
Conformal gauge theory of vector-spinors and spin-3/2 particles
Dario Sauro
The unique off-shell fermionic gauge invariance of a vector-spinor field theory is found, and the invariant action is derived. The latter is Weyl invariant in any dimension in the…
Heat kernel of non-minimal second-order operators
Dario Sauro
We analyze the spectra of general non-minimal second-order operators. To do this, we derive the local part of the trace of the second Seeley-DeWitt heat kernel coefficient for such…
Existence theorem on the UV limit of Wilsonian RG flows of Feynman measures
Andras Laszlo, Zsigmond Tarcsay, Jobst Ziebell
In nonperturbative formulation of Euclidean signature quantum field theory (QFT), the vacuum state is characterized by the Wilsonian renormalization group (RG) flow of Feynman meas…
Entanglement Rényi entropies in celestial holography
Federico Capone, Andy O'Bannon, Ronnie Rodgers +1
Celestial holography is the conjecture that scattering amplitudes in -dimensional asymptotically Minkowski spacetimes are dual to correlators of a -dimensional conformal…