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pro vyhledávání: '"Sengor, Gizem"'
Autor:
Sengor, Gizem
Our main goal here is to provide an introduction on some of the well established properties of the representation theory of SO(d+1,1), for those considering to think on physical problems set in de Sitter space in terms of these representations. With
Externí odkaz:
http://arxiv.org/abs/2206.04719
Autor:
Sengor, Gizem, Skordis, Constantinos
We demonstrate how free massive scalar fields in the set up that usually appears in early universe inflationary studies, correspond to the principal series and complementary series representations of the group SO(d+1,1) by introducing late-time opera
Externí odkaz:
http://arxiv.org/abs/2205.11550
Autor:
Sengor, Gizem, Skordis, Constantinos
We calculate two-point functions of scalar fields of mass $m$ and their conjugate momenta at the late-time boundary of de Sitter with Bunch-Davies boundary conditions, in general $d+1$ spacetime dimensions. We perform the calculation using the wavefu
Externí odkaz:
http://arxiv.org/abs/2110.01635
Autor:
Sengor, Gizem, Skordis, Constantinos
Publikováno v:
JHEP 06 (2020) 041
The symmetry group of the de Sitter spacetime, accommodates fields of various masses and spin among its unitary irreducible representations. These unitary representations are labeled by the spin and the weight contribution to the scaling dimension an
Externí odkaz:
http://arxiv.org/abs/1912.09885
Autor:
Sengor, Gizem
One essence in capturing the history of primordial fluctuations that arise during inflation and eventually lead to formation of large scale structures in the universe, relies on quantizing general relativity coupled to a scalar field. This is a syste
Externí odkaz:
http://arxiv.org/abs/1807.08007
Publikováno v:
Phys. Rev. D 96, 123524 (2017)
We investigate whether Effective Field Theory (EFT) approaches, which have been useful in examining inflation and dark energy, can also be used to establish a systematic approach to inflationary reheating. We consider two methods. First, we extend We
Externí odkaz:
http://arxiv.org/abs/1701.01455
In this note we propose a model independent framework for inflationary (p)reheating. Our approach is analogous to the Effective Field Theory of Inflation, however here the inflaton oscillations provide an additional source of (discrete) symmetry brea
Externí odkaz:
http://arxiv.org/abs/1507.06651
Akademický článek
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Akademický článek
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Autor:
Sengor, Gizem, Arik, Metin
Publikováno v:
Mod. Phys. Lett. A, Vol. 28, No. 21 (2013) 1350095
In five dimensional cosmological models, the convention is to include the fifth dimension in a way similar to the other space dimensions. In this work we attempt to introduce the fifth dimension in a way that a time dimension would be introduced. Wit
Externí odkaz:
http://arxiv.org/abs/1302.0947