Publications associées à Tachyon

Preheating in Palatini Higgs inflation on the lattice

Andrey Shkerin, Inar Timiryasov, Juraj Klaric, Adrien Florio

We study preheating following Higgs inflation in the Palatini formulation of gravity. We numerically evolve perturbations of the radial mode of the Higgs field and that of three scalars modeling the gauge bosons. We compare the two non-perturbative mechani ...

IOP Publishing Ltd2022

Superluminal Motion-Assisted Four-Dimensional Light-in-Flight Imaging

Edoardo Charbon, Andrei Ardelean, Ming-Lo Wu, Kazuhiro Morimoto

Advances in high-speed imaging techniques have opened new possibilities for capturing ultrafast phenomena such as light propagation in air or through media. Capturing light in flight in three-dimensional xyt space has been reported based on various types o ...

AMER PHYSICAL SOC2021

Ultrabroadband 3D invisibility with fast-light cloaks

Hatice Altug, Dordaneh Etezadi, Kosmas Tsakmakidis, Ershad Mohammadi, Foziyeh Sohrabi

An invisibility cloak should completely hide an object from an observer, ideally across the visible spectrum and for all angles of incidence and polarizations of light, in three dimensions. However, until now, all such devices have been limited to either s ...

2019

Benchmark of gyrokinetic, kinetic MHD and gyrofluid codes for the linear calculation of fast particle driven TAE dynamics

Wilfred Anthony Cooper, Alberto Bottino

Fast particles in fusion plasmas may drive Alfven modes unstable leading to fluctuations of the internal electromagnetic fields and potential loss of particles. Such instabilities can have an impact on the performance and the wall-load of machines with bur ...

2018

A sensorless method for measuring the point mobility of mechanical structures

Romain Boulandet, Philippe Herzog

This paper presents a convenient and cost-effective experimental tool for measuring the mobility characteristics of a mechanical structure. The objective is to demonstrate that the point mobility measurement can be performed using only an electrodynamic in ...

Elsevier2016

On constraining the speed of gravitational waves following GW150914

Sergey Sibiryakov, Diego Blas Temino, Mikhail Ivanov

We point out that the observed time delay between the detection of the signal at the Hanford and Livingston LIGO sites from the gravitational wave event GW150914 places an upper bound on the speed of propagation of gravitational waves, c (gw) ae(2) 1.7 in ...

Springer Verlag2016

Advances in the physics basis for the European DEMO design

Ambrogio Fasoli, Javier García Hernández, Marco Wischmeier, Emiliano Fable, Bernhard Sieglin, Hartmut Zohm, Emanuele Poli

In the European fusion roadmap, ITER is followed by a demonstration fusion power reactor (DEMO), for which a conceptual design is under development. This paper reports the first results of a coherent effort to develop the relevant physics knowledge for tha ...

Iop Publishing Ltd2015

Suprathermal electron dynamics and MHD instabilities in a tokamak

Stefano Coda, Jonathan Graves, Joan Decker, Josef Kamleitner

The dynamics of suprathermal electrons in the presence of magnetohydrodynamics (MHD) activity and the excitation of MHD modes by suprathermal electrons are studied experimentally to improve the understanding of the interaction of fast particles with MHD in ...

2015

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Tachyon

Preheating in Palatini Higgs inflation on the lattice

Superluminal Motion-Assisted Four-Dimensional Light-in-Flight Imaging

Improvements in physics models of AFSI-ASCOT-based synthetic neutron diagnostics at JET

Ultrabroadband 3D invisibility with fast-light cloaks

Benchmark of gyrokinetic, kinetic MHD and gyrofluid codes for the linear calculation of fast particle driven TAE dynamics

A sensorless method for measuring the point mobility of mechanical structures

On constraining the speed of gravitational waves following GW150914

Aircraft panel with sensorless active sound power reduction capabilities through virtual mechanical impedances

Advances in the physics basis for the European DEMO design

Suprathermal electron dynamics and MHD instabilities in a tokamak

Graph Chatbot

Chattez avec Graph Search

Ultrabroadband 3D invisibility with fast-light cloaks

Preheating in Palatini Higgs inflation on the lattice

Superluminal Motion-Assisted Four-Dimensional Light-in-Flight Imaging

On constraining the speed of gravitational waves following GW150914

Advances in the physics basis for the European DEMO design

Suprathermal electron dynamics and MHD instabilities in a tokamak