Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Isabel Fernández-Núñez"'
Publikováno v:
Recercat. Dipósit de la Recerca de Catalunya
instname
Dipòsit Digital de la UB
Universidad de Barcelona
instname
Dipòsit Digital de la UB
Universidad de Barcelona
We show that if a cosmic string exists, it may be identified through characteristic diffraction pattern in the energy spectrum of the observed signal. In particular, if the string is on the line of sight, the wave field is shown to fit the Cornu spir
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7903cc2faa7f0c91b3a141d3fd8c892c
https://doi.org/10.1016/j.physleta.2016.07.008
https://doi.org/10.1016/j.physleta.2016.07.008
The possibility to detect cosmic strings -- topological defects of early Universe, by means of wave effects in gravitational lensing is discussed. To find the optimal observation conditions, we define the hyperbolic-shaped Fresnel observation zones a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f1d0911e55e2c10b64c0292f2cda330f
Propagation of light in a metamaterial medium which mimics curved spacetime and acts like a black hole is studied. We show that for a particular type of spacetimes and wave polarization, the time dilation appears as dielectric permittivity, while the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c0d295056de77406dad4cbaa1736eefe
Publikováno v:
Journal of Optics; Apr2018, Vol. 20 Issue 4, p1-1, 1p