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Tropical QFT and the sine-Gordon model
Michael Borinsky, Jury Radkovski, Suriyah Rajalingam Kannagi
A tropical quantum field theory is an exactly solvable deformation limit of an ordinary QFT, governed by a non-linear partial differential equation. We use the integrable two-dimen…
Space- vs Time-dependence in taming the infrared instability of projectable Hořava Gravity
Shinji Mukohyama, Jury Radkovski, Sergey Sibiryakov
Minkowski spacetime exhibits infrared instability in projectable Ho\v rava gravity in (3+1) dimensions. To be phenomenologically viable, the instability should be either hidden by…
A bulk model for dissipation and fixing EFT equations on its boundary
A. Besharat, L. Lehner, J. Radkovski
Effective field theories (EFTs) with higher derivatives often yield equations of motion that define ill-posed problems. We present an action-based approach that supplements a recen…
Quantizing non-projectable Hořava gravity with Lagrangian path integral
D. Blas, F. Del Porro, M. Herrero-Valea +2
We formulate the quantum version of non-projectable Hořava gravity as a Lagrangian theory with a path integral in the configuration space with an ultra-local in time, but non-local…
Scattering amplitudes in high-energy limit of projectable Horava gravity
Jury I. Radkovski, Sergey M. Sibiryakov
We study the high-energy limit of projectable Ho\v rava gravity using on-shell graviton scattering amplitudes. We compute the tree-level amplitudes using symbolic computer algebra…