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Christos Markou (Director of INPP)30/09/2024, 09:45
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Sang-Jin Sin30/09/2024, 10:00
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Sungjay Lee30/09/2024, 11:00
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Kanghoon Lee30/09/2024, 14:00
Applying the quantum field theoretic perturbiner approach to Einstein gravity, we compute the metric of a Schwarzschild black hole order by order in perturbation theory. Using recursion, this perturbative calculation can be carried out in de Donder gauge to all orders in Newton’s constant. The result is a geometric series which is convergent outside a disk of finite radius, and it agrees within...
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Matti Jarvinen30/09/2024, 15:00
The gauge/gravity duality, combined with information from lattice QCD, nuclear theory, and perturbative QCD, can be used to obtain predictions for the equation of state and transport in hot and dense QCD. I give an overview of an approach based on the holographic V-QCD model, which includes both nuclear and quark matter phases, separated by a first order phase transition. I demonstrate that...
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Constantin Bachas30/09/2024, 16:30
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Georgios Papathanasiou30/09/2024, 17:30
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David Kosower01/10/2024, 10:00
Classifying and organizing Feynman integrals according to their degree of divergence may be a useful tool in presenting scattering amplitudes. In this talk, I focus on the first step: systematically organizing and finding finite Feynman integrals. I will briefly discuss an approach based on Landau equations. I will then focus mostly on an approach based on Newton polytopes.
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Michal Czakon01/10/2024, 11:00
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Dr Bum-Hoon Lee01/10/2024, 14:00
The dilaton-Einstein-Gauss-Bonnet(dEGB) Gravity is one of the simplest extensions of Einstein's gravity with the higher curvature term. After some motivation to go beyond Einstein's Gravity models, we briefly describe the dEGB model through the black holes. Unlike Einstein's gravity, we explain the existence of a minimum mass below which the black hole cannot be formed, which is the most...
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Pierpaolo Mastrolia01/10/2024, 15:00
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Konstantinos Papadopoulos (Nat. Cent. for Sci. Res. Demokritos (GR))01/10/2024, 16:30
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Giuseppe Bevilacqua01/10/2024, 17:30
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Simon Badger03/10/2024, 10:00
I will discuss the progress towards providing the missing double virtual corrections to the listed final states using modern computational tools.
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Heribertus Bayu Hartanto03/10/2024, 11:00
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Aris Spourdalakis03/10/2024, 14:00
I will present recent progress in constructing a generic two-loop amplitude reduction algorithm within the computational framework of HELAC. Following the well-known OPP reduction approach at one loop, a two loop amplitude approach is developed. I will also discuss the differences between the 4-2ε and pure 4 dimensional reduction fitting.
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Nikos Dokmetzoglou03/10/2024, 15:00
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Matthew Roberts03/10/2024, 16:30
Magnetic solenoids in quantum systems can have lead to novel and interesting physics in the deep infrared, owing to the fact that they can be classified by a number, the magnetic flux of the solenoid. We review the general physics of co-dimension two defects with an eye towards studying magnetic defects, and discuss new central charges that arise in these mixed dimensional systems. We comment...
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Christopher Rosen03/10/2024, 17:30
Localized deformations of quantum field theories present interesting
opportunities to enhance our understanding of the features of such
theories at different length scales. This class of deformations is of
particular interest in light of its applicability to inhomogeneities
in cosmological settings, as well as interfaces and impurities in
condensed matter systems.Despite the inherent...
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George Savvidy04/10/2024, 10:00
The moduli space of covariantly constant gauge fields is infinite-dimensional and describes non-perturbative solutions of the Yang-Mills equation of superposed chromomagnetic flux tubes (vortices) of opposite magnetic charges. These gauge field configurations are stretched along the potential valleys of a constant energy density and are separated by potential barriers between classically...
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Georgios Linardopoulos04/10/2024, 11:00
We investigate the large-N limit of the BMN matrix model by means of classical bosonic membranes that have spherical topology and spin inside the 11-dimensional maximally supersymmetric plane-wave background. First, we classify all possible M2-brane configurations based on the distribution of their components inside the SO(3) × SO(6) symmetric plane-wave spacetime. We then formulate some...
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Stam Nicolis04/10/2024, 14:00
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Kostas Filippas04/10/2024, 15:00
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Christopher Rosen
Localized deformations of quantum field theories present interesting
opportunities to enhance our understanding of the features of such
theories at different length scales. This class of deformations is of
particular interest in light of its applicability to inhomogeneities
in cosmological settings, as well as interfaces and impurities in
condensed matter systems.Despite the inherent...
Go to contribution page -
Dr Georgios Linardopoulos (Asia Pacific Center for Theoretical Physics)
We investigate the large-N limit of the BMN matrix model by means of classical bosonic membranes that have spherical topology and spin inside the 11-dimensional maximally supersymmetric plane-wave background. First, we classify all possible M2-brane configurations based on the distribution of their components inside the SO(3) × SO(6) symmetric plane-wave spacetime. We then formulate some...
Go to contribution page -
Bum-Hoon Lee (Sogang University)
The dilaton-Einstein-Gauss-Bonnet(dEGB) Gravity is one of the simplest extensions of Einstein's gravity with the higher curvature term. After some motivation to go beyond Einstein's Gravity models, we briefly describe the dEGB model through the black holes. Unlike Einstein's gravity, we explain the existence of a minimum mass below which the black hole cannot be formed, which is the most...
Go to contribution page -
Matthew Roberts (APCTP)
Magnetic solenoids in quantum systems can have lead to novel and interesting physics in the deep infrared, owing to the fact that they can be classified by a number, the magnetic flux of the solenoid. We review the general physics of co-dimension two defects with an eye towards studying magnetic defects, and discuss new central charges that arise in these mixed dimensional systems. We comment...
Go to contribution page -
Konstantinos Papadopoulos (Nat. Cent. for Sci. Res. Demokritos (GR))
Discuss OPP at two loops, for integrand level reduction within HELAC2LOOP.
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Matti Jarvinen
The gauge/gravity duality, combined with information from lattice QCD, nuclear theory, and perturbative QCD, can be used to obtain predictions for the equation of state and transport in hot and dense QCD. I give an overview of an approach based on the holographic V-QCD model, which includes both nuclear and quark matter phases, separated by a first order phase transition. I demonstrate that...
Go to contribution page -
Kanghoon Lee (APCTP)
Applying the quantum field theoretic perturbiner approach to Einstein gravity, we compute the metric of a Schwarzschild black hole order by order in perturbation theory. Using recursion, this perturbative calculation can be carried out in de Donder gauge to all orders in Newton’s constant. The result is a geometric series which is convergent outside a disk of finite radius, and it agrees within...
Go to contribution page
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