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- Centre National de la Recherche ScientifiqueFR116 papers
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50 papers · 1 filter
Einstein crystals in Snyder and Snyder-de Sitter noncommutative backgrounds
Anna Pachoł, Aneta Wojnar
We investigate the behavior of Einstein crystals in noncommutative backgrounds described by the Snyder and Snyder-de Sitter models. Possible novel effects, which may arise in reali…
Phase-resolved field-space distance criteria in ekpyrotic, bouncing and cyclic cosmologies
Marcin Postolak
The inflationary Lyth bound relates the primordial tensor amplitude to the inflaton field excursion. In ekpyrotic, bouncing and cyclic cosmologies there is no analogous universal t…
Quantum gravitational stellar evolution beyond shell-crossing singularities
Michał Bobula, Francesco Fazzini
Models of effective stellar collapse inspired by loop quantum gravity predict a bounce when the stellar energy density reaches the Planck scale, typically followed by the formation…
Simulating Binary Neutron Star Mergers with Finite-temperature Equations of State: The influences of the slope of the symmetry energy and artificial heating
Henrique Gieg, Maximiliano Ujevic, Armen Sedrakian +1
We present a new set of numerical-relativity simulations of merging binary neutron stars, aiming to identify possible observable signatures of the slope of the symmetry energy $L_{…
The Science of the Einstein Telescope
Adrian Abac, Raul Abramo, Simone Albanesi +485
Einstein Telescope (ET) is the European project for a gravitational-wave (GW) observatory of third-generation. In this paper we present a comprehensive discussion of its science ob…
Choice of vacuum state and the relation between inflationary and Planck scales
Maciej Kowalczyk, Guillermo A. Mena Marugán
Recent observations about the cosmic microwave background evidence a clear discrepancy between the scale of inflation and the Planck scale expected in the conventional inflationary…