Zobrazeno 1 - 10
of 537
pro vyhledávání: '"Pawłowski, Tomasz A"'
Autor:
Bobula, Michał, Pawłowski, Tomasz
We study the causal structure for spherically symmetric dust collapse within effective loop quantum gravity. We develop a general strategy (working beyond the dynamical model of our consideration) for constructing double null coordinates, allowing th
Externí odkaz:
http://arxiv.org/abs/2410.22943
Autor:
Bobula, Michał, Pawłowski, Tomasz
The loop quantum gravitational collapse of the dust ball in presence of positive cosmological constant is investigated within the Oppenheimer-Snyder collapse scenario. The dust ball interior is described within the framework of loop quantum cosmology
Externí odkaz:
http://arxiv.org/abs/2410.22605
Autor:
Parvizi, Aliasghar, Pawłowski, Tomasz
One of the principal aspects through which the effects of quantum gravity are hoped to manifest is the possible modification of the dispersion relation for electromagnetic (e-m) waves. By combining (i) the symmetry reduced approaches to spacetime qua
Externí odkaz:
http://arxiv.org/abs/2407.05500
Autor:
Bobula, Michał, Pawłowski, Tomasz
The dust ball collapse is studied in the context of the "rainbow metric" approach (where the matter content is supplemented with a scalar field perturbation) to the Oppenheimer-Snyder collapse scenario within the framework of loop quantum cosmology.
Externí odkaz:
http://arxiv.org/abs/2303.12708
Autor:
Kowalczyk, Maciej, Pawłowski, Tomasz
One of critical components of Loop Quantum Gravity (LQG) and Cosmology (LQC) -- Thiemann regularization procedure is non-unique. Different choices of particular prescriptions lead to models which differ in both mathematical structure and physical pre
Externí odkaz:
http://arxiv.org/abs/2212.12527
Publikováno v:
Phys. Rev. D 105, 086002 (2022)
Quantum evolution of a scalar field's modes propagating on quantum spacetime of a collapsing homogeneous dust ball is written effectively, as an evolution of the same quantum modes on a (semiclassical) dressed geometry. When the backreaction of the f
Externí odkaz:
http://arxiv.org/abs/2110.03069
Autor:
Brizuela, David, Pawlowski, Tomasz
Publikováno v:
JCAP 10 (2022) 080
A semiclassical description of quantum systems is applied to probe the dynamics of the cosmological model of an inflationary universe with quadratic inflaton potential, described in a quantum framework of geometrodynamics. The systematic analysis, fo
Externí odkaz:
http://arxiv.org/abs/2107.04342
Autor:
Vergallo, Rocco, Lombardi, Marco, Kakuta, Tsunekazu, Pawlowski, Tomasz, Leone, Antonio Maria, Sardella, Gennaro, Agostoni, Pierfrancesco, Hill, Jonathan M., De Maria, Giovanni Luigi, Banning, Adrian P., Roleder, Tomasz, Belkacemi, Anouar, Trani, Carlo, Burzotta, Francesco
Publikováno v:
In Journal of the Society for Cardiovascular Angiography & Interventions April 2024 3(4)
Publikováno v:
In Methods March 2024 223:118-126
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