109 citations · 432 across the 27 of their papers we have counts for
12 papers · 1 filter
Rational Q-systems at Root of Unity I. Closed Chains
Jue Hou, Yunfeng Jiang, Yuan Miao
The solution of Bethe ansatz equations for XXZ spin chain with the parameter being a root of unity is infamously subtle. In this work, we develop the rational -system for th…
Black holes seeding cosmological phase transitions
Basem Kamal El-Menoufi, Stephan J. Huber, Jonathan P. Manuel
We consider a generic first-order phase transition at finite temperature and investigate to what extent a population of primordial black holes, of variable masses, can affect the r…
Quantum corrections to vacuum energy sequestering (with monodromy)
Basem Kamal El-Menoufi, Silvia Nagy, Florian Niedermann +1
Field theory models of axion monodromy have been shown to exhibit vacuum energy sequestering as an emergent phenomenon for cancelling radiative corrections to the cosmological cons…
Gravitational Radiation in Quantum Gravity
Xavier Calmet, Basem Kamal El-Menoufi, Boris Latosh +1
The effective field theory of quantum gravity generically predicts non-locality to be present in the effective action, which results from the low-energy propagation of gravitons an…
A rapid holographic phase transition with brane-localized curvature
Barry M. Dillon, Basem Kamal El-Menoufi, Stephan J. Huber +1
We study the finite-temperature properties of the Randall-Sundrum model in the presence of brane-localized curvature. At high temperature, as dictated by AdS/CFT, the theory is in…
Quantum Corrections to Schwarzschild Black Hole
Xavier Calmet, Basem Kamal El-Menoufi
Using effective field theory techniques, we compute quantum corrections to spherically symmetric solutions of Einstein's gravity and focus in particular on the Schwarzschild black…
Quantum gravity of Kerr-Schild spacetimes and the logarithmic correction to Schwarzschild black hole entropy
Basem Kamal El-Menoufi
In the context of effective field theory, we consider quantum gravity with minimally coupled massless particles. Fixing the background geometry to be of the Kerr-Schild type, we fu…
Covariant non-local action for massless QED and the curvature expansion
John F. Donoghue, Basem Kamal El-Menoufi
We explore the properties of non-local effective actions which include gravitational couplings. Non-local functions originally defined in flat space can not be easily generalized t…
The Equivalence Principle in a Quantum World
N. E. J. Bjerrum-Bohr, John F. Donoghue, Basem Kamal El-Menoufi +3
We show how modern methods can be applied to quantum gravity at low energy. We test how quantum corrections challenge the classical framework behind the Equivalence Principle, for…
The axial anomaly, dimensional regularization and Lorentz-violating QED
Basem Kamal El-Menoufi, G. A. White
In order to treat loops in the Lorentz-violating QED model, we present a derivation of the QED axial anomaly that specifically highlights the infrared origin of the effect. This is…
QED trace anomaly, non-local Lagrangians and quantum Equivalence Principle violations
John F. Donoghue, Basem Kamal El-Menoufi
We discuss the derivation of the trace anomaly using a non-local effective action at one loop. This provides a simple and instructive form and emphasizes infrared physics. We then…
Massless gravitons on a brane from massive gravity in five-dimensional Minkowski space
Basem Kamal El-Menoufi, Lorenzo Sorbo
We discuss the possibility of localizing Einstein gravity on a three-brane embedded in a five-dimensional Minkowski space by giving a space-dependent mass to the graviton. We show…