Zobrazeno 1 - 10
of 87
pro vyhledávání: '"Sandstad, Marit"'
Publikováno v:
Classical and Quantum Gravity 34 (2017) 145013
The basics of teleparallel gravity and its extensions are reviewed with particular emphasis on the problem of Lorentz-breaking choice of connection in pure-tetrad versions of the theories. Various possible ways to covariantise such models are discuss
Externí odkaz:
http://arxiv.org/abs/1701.06271
Publikováno v:
Physics of the Dark Universe 19 (2018) 124-128
The existence (and abundance) of primordial black holes (PBHs) is governed by the power spectrum of primordial perturbations generated during inflation. So far no PBHs have been observed, and instead, increasingly stringent bounds on their existence
Externí odkaz:
http://arxiv.org/abs/1611.10069
Publikováno v:
Phys. Rev. D 94, 083504 (2016)
The possibility that the dark matter comprises primordial black holes (PBHs) is considered, with particular emphasis on the currently allowed mass windows at $10^{16}$ - $10^{17}\,$g, $10^{20}$ - $10^{24}\,$g and $1$ - $10^{3}\,M_{\odot}$. The Planck
Externí odkaz:
http://arxiv.org/abs/1607.06077
Autor:
Kuhnel, Florian, Sandstad, Marit
Publikováno v:
Phys. Rev. D 94, 063514 (2016)
We reinvestigate gravitational ellipsoidal collapse with special focus on its impact on primordial black-hole formation. For a generic model we demonstrate that the abundance and energy density of the produced primordial black holes will be significa
Externí odkaz:
http://arxiv.org/abs/1602.04815
Publikováno v:
Eur.Phys.J. C76 (2016) 2, 93
Certain inflationary models as well as realisations of phase transitions in the early Universe predict the formation of primordial black holes. For most mass ranges, the fraction of matter in the form of primordial black holes is limited by many diff
Externí odkaz:
http://arxiv.org/abs/1512.00488
Publikováno v:
Phys. Rev. D 93, 064081 (2016)
In metric-affine theories of gravity such as the C-theories, the spacetime connection is associated to a metric that is nontrivially related to the physical metric. In this article, such theories are rewritten in terms of a single metric and it is sh
Externí odkaz:
http://arxiv.org/abs/1509.06552
Autor:
Kühnel, Florian, Sandstad, Marit
Publikováno v:
Phys. Rev. D 92, 124028 (2015)
Primordial black holes are studied in the Bose-Einstein condensate description of space-time. The question of baryon-number conservation is investigated with emphasis on possible formation of bound states of the system's remaining captured baryons. T
Externí odkaz:
http://arxiv.org/abs/1506.08823
Autor:
Kuhnel, Florian, Sandstad, Marit
Publikováno v:
Eur.Phys.J. C75 (2015) 10, 505
We review the paradigm of eternal inflation in the light of the recently proposed corpuscular picture of space-time. Comparing the strength of the average fluctuation of the field up its potential with that of quantum depletion, we show that the latt
Externí odkaz:
http://arxiv.org/abs/1504.02377
Autor:
Gampe, David, Schwingshackl, Clemens, Böhnisch, Andrea, Mittermeier, Magdalena, Sandstad, Marit, Wood, Raul R.
Publikováno v:
Earth System Dynamics; 2024, Vol. 15 Issue 3, p589-605, 17p
Publikováno v:
In Weather and Climate Extremes September 2020 29