Publications associées à Vitesse de la gravité

Experienced travel time prediction for congested freeways

Nikolaos Geroliminis, Mehmet Yildirimoglu

Travel time is an important performance measure for transportation systems, and dissemination of travel time information can help travelers make reliable travel decisions such as route choice or departure time. Since the traffic data collected in real time ...

Elsevier2013

Experienced Travel Time Prediction for Freeway Systems

Nikolaos Geroliminis, Mehmet Yildirimoglu

Travel time is considered as one of the most important performance measures for roadway systems, and dissemination of travel time information can help travelers to make reliable travel decisions such as route choice or time departure. Since the traffic dat ...

Ieee2012

Can a Metal Surface Repel Electric Charges?

Primoz Rebernik Ribic

We show that the interaction between a surface and a charge packet moving parallel to it can become repulsive above a critical relativistic energy. We find that this is true for a lossless dielectric surface and also for a Drude metallic surface-in apparen ...

American Physical Society2012

Models of non-relativistic quantum gravity: the good, the bad and the healthy

Sergey Sibiryakov, Diego Blas Temino

Horava's proposal for non-relativistic quantum gravity introduces a preferred time foliation of space-time which violates the local Lorentz invariance. The foliation is encoded in a dynamical scalar field which we call 'khronon'. The dynamics of the khrono ...

2011

Gravitational radiation in Horava gravity

Hillary Sanctuary, Diego Blas Temino

We study the radiation of gravitational waves by self-gravitating binary systems in the low-energy limit of Horava gravity. We find that the predictions for the energy-loss formula of general relativity are modified already for Newtonian sources: the quadr ...

2011

Horava gravity versus thermodynamics: The black hole case

Sergey Sibiryakov, Diego Blas Temino

Under broad assumptions, breaking of Lorentz invariance in gravitational theories leads to tension with unitarity because it allows for processes that apparently violate the second law of thermodynamics. The crucial ingredient of this argument is the exist ...

2011

Technically natural dark energy from Lorentz breaking

Sergey Sibiryakov, Diego Blas Temino

We construct a model of dark energy with a technically natural small contribution to cosmic acceleration, i.e. this contribution does not receive corrections from other scales in the theory. The proposed acceleration mechanism appears generically in the lo ...

2011

Consistent Extension of Horava Gravity

Sergey Sibiryakov, Diego Blas Temino

We propose a natural extension of Horava's model for quantum gravity, which is free from the notorious pathologies of the original proposal. The new model endows the scalar graviton mode with a regular quadratic action and remains power-counting renormaliz ...

2010

Comment on "Strong coupling in extended Horava-Lifshitz gravity" [Phys. Lett. B 685 (2010) 197]

Sergey Sibiryakov, Diego Blas Temino

We show that, contrary to the claim made in arXiv:0911.1299, the extended Horava gravity model proposed in arXiv:0909.3525 does not suffer from a strong coupling problem. By studying the observational constraints on the model we determine the bounds on the ...

2010

Chattez avec Graph Search

Posez n’importe quelle question sur les cours, conférences, exercices, recherches, actualités, etc. de l’EPFL ou essayez les exemples de questions ci-dessous.

AVERTISSEMENT : Le chatbot Graph n'est pas programmé pour fournir des réponses explicites ou catégoriques à vos questions. Il transforme plutôt vos questions en demandes API qui sont distribuées aux différents services informatiques officiellement administrés par l'EPFL. Son but est uniquement de collecter et de recommander des références pertinentes à des contenus que vous pouvez explorer pour vous aider à répondre à vos questions.

Vitesse de la gravité

Experienced travel time prediction for congested freeways

Experienced Travel Time Prediction for Freeway Systems

Can a Metal Surface Repel Electric Charges?

Models of non-relativistic quantum gravity: the good, the bad and the healthy

Gravitational radiation in Horava gravity

Horava gravity versus thermodynamics: The black hole case

Technically natural dark energy from Lorentz breaking

Consistent Extension of Horava Gravity

Comment on "Strong coupling in extended Horava-Lifshitz gravity" [Phys. Lett. B 685 (2010) 197]

Understanding the relations between QSOs and their host galaxies from combined HST imaging and VLT spectroscopy

Graph Chatbot

Chattez avec Graph Search

Experienced Travel Time Prediction for Freeway Systems

Can a Metal Surface Repel Electric Charges?

Experienced travel time prediction for congested freeways

Horava gravity versus thermodynamics: The black hole case

Consistent Extension of Horava Gravity

Understanding the relations between QSOs and their host galaxies from combined HST imaging and VLT spectroscopy

Models of non-relativistic quantum gravity: the good, the bad and the healthy

Comment on "Strong coupling in extended Horava-Lifshitz gravity" [Phys. Lett. B 685 (2010) 197]

Technically natural dark energy from Lorentz breaking