Zobrazeno 1 - 10
of 83
pro vyhledávání: '"Urban, Marcel"'
Autor:
Mailliet, Aurélie Max, Kraych, Adrien E., Couchot, François, Sarazin, Xavier, Baynard, Elsa, Demailly, Julien, Pittman, Moana, Djannati-Ataï, Arache, Kazamias, Sophie, Robertson, Scott, Urban, Marcel
Publikováno v:
Physical Review A 109, 043526 (2024)
In Quantum Electrodynamics, vacuum becomes a nonlinear optical medium: its optical index should be modified in the presence of intense external electromagnetic fields. The DeLLight project (Deflection of Light by Light) aims to observe this effect us
Externí odkaz:
http://arxiv.org/abs/2401.13720
Autor:
Kraych, Adrien E., Mailliet, Aurélie Max, Couchot, François, Sarazin, Xavier, Baynard, Elsa, Demailly, Julien, Pittman, Moana, Djannati-Ataï, Arache, Kazamias, Sophie, Robertson, Scott, Urban, Marcel
The aim of the DeLLight (Deflection of Light by Light) experiment is to observe for the first time the optical nonlinearity in vacuum, as predicted by Quantum Electrodynamics, by measuring the refraction of a low-intensity focused laser pulse (probe)
Externí odkaz:
http://arxiv.org/abs/2401.13506
We present a model that builds ``dark matter"-like halo density profiles from free-falling zero-point vacuum fluctuations. It does not require a modification of Newton's laws, nor the existence of as-yet-undiscovered dark matter particles. The 3D hal
Externí odkaz:
http://arxiv.org/abs/2302.01624
Autor:
Robertson, Scott, Mailliet, Aurélie, Sarazin, Xavier, Couchot, François, Baynard, Elsa, Demailly, Julien, Pittman, Moana, Djannati-Ataï, Arache, Kazamias, Sophie, Urban, Marcel
Publikováno v:
Phys. Rev. A 103, 023524 (2021)
Quantum electrodynamics predicts that the vacuum must behave as a nonlinear optical medium: the speed of light should be modified when the vacuum is stressed by intense electromagnetic fields. This optical phenomenon has not yet been observed. The De
Externí odkaz:
http://arxiv.org/abs/2011.13889
Autor:
Urbazaev, Mikhail, Hess, Laura L., Hancock, Steven, Sato, Luciane Yumie, Ometto, Jean Pierre, Thiel, Christian, Dubois, Clémence, Heckel, Kai, Urban, Marcel, Adam, Markus, Schmullius, Christiane
Publikováno v:
In Science of Remote Sensing December 2022 6
Autor:
Neumann, Matthias, Dürr, Agnes, Gonzalez-Martin, Alice, Urban, Marcel, Manoharan, Noah, Surikova, Vladislava, Mittmann, Gloria, Ertl, Manuela, Gerlich, Katharina, Stiehl, Katharina, Steiner-Hofbauer, Verena, Schrank, Beate
Publikováno v:
Psychopraxis.neuropraxis; Sep2024, Vol. 27 Issue 4, p245-250, 6p
Autor:
Urban, Marcel.
Braunschweig, Techn. Univ., Diss., 2006 und Firenze, Università degli Studi, Diss., 2006.
Externí odkaz:
http://www.digibib.tu-bs.de/?docid=00020873
http://deposit.ddb.de/cgi-bin/dokserv?idn=984577297
http://deposit.ddb.de/cgi-bin/dokserv?idn=984577297
Publikováno v:
Eur. Phys. J. D, 67 3 (2013) 58
We show that the vacuum permeability and permittivity may originate from the magnetization and the polarization of continuously appearing and disappearing fermion pairs. We then show that if we simply model the propagation of the photon in vacuum as
Externí odkaz:
http://arxiv.org/abs/1302.6165
Publikováno v:
In International Journal of Applied Earth Observation and Geoinformation September 2019 81:195-206
We are used to describe the detection of light in terms of particles and its propagation from the source to the detection, by waves. For instance, the slowing down of light in a transparent medium is always explained within the electromagnetic wave f
Externí odkaz:
http://arxiv.org/abs/0906.3018