F (Metric-Affine) gravity: Disformal and cross-curvature effects
tarafından
Samaner, Çağlar, author.
Başlık
:
F (Metric-Affine) gravity: Disformal and cross-curvature effects
Yazar
:
Samaner, Çağlar, author.
Yazar Ek Girişi
:
Samaner, Çağlar, author.
Fiziksel Tanımlama
:
vi, 34 leaves:+ 1 computer laser optical disc.
Özet
:
The present thesis consists of two main studies, in the first part, after giving a brief formulation of gravity theories on the metric, affine and metric-affine frameworks, we study the effects of the disformal coupling term \epsilon R_{\mu\nu} V^mu V^nu. We track the effects of disformal term up to field equations, then construct the Einstein tensor G_{\mu\nu} and subsequently identify an effective energy-momentum tensor T_{\mu\nu} to extract effective energy density and pressure. We conclude the first part by comparing the results of metric-affine disformal theory with metrical disformal theory. In the second part, we study the cosmological effects of cross-curvature theory with the functional F (R,R). We derive the both Friedmann equations with the general functional F (R, R) and compare our findings with the known F (R) theory results.
Konu Başlığı
:
Gravity.
Quantum gravity.
Yazar Ek Girişi
:
Demir, Durmuş Ali,
Tüzel Kişi Ek Girişi
:
İzmir Institute of Technology. Physics.
Tek Biçim Eser Adı
:
Thesis (Master)--İzmir Institute of Technology: Physics.
İzmir Institute of Technology: Physics--Thesis (Master).
Elektronik Erişim
:
Library | Materyal Türü | Demirbaş Numarası | Yer Numarası | Durumu/İade Tarihi |
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IYTE Library | Tez | T001915 | QC178 .S18 2019 | Tez Koleksiyonu |