Finsler–Randers cosmology: dynamical analysis and growth of matter perturbations
نویسندگان
چکیده
منابع مشابه
When correlations matter - response of dynamical networks to small perturbations
We systematically study and compare damage spreading for random Boolean and threshold networks under small external perturbations (damage), a problem which is relevant to many biological networks. We identify a new characteristic connectivityKs, at which the average number of damaged nodes after a large number of dynamical updates is independent of the total number of nodes N . We estimate the ...
متن کاملCosmic Strings, Loops, and Linear Growth of Matter Perturbations
We describe a detailed study of string-seeded structure formation using high resolution numerical simulations in open universes and those with a non-zero cosmological constant. We provide a semi-analytical model which can reproduce these simulation results including the effect from small loops chopped of by the string network. A detailed study of cosmic string network properties regarding struc...
متن کاملAdiabatic and entropy perturbations in cosmology
This thesis presents a study of the effect and generation of non-adiabatic perturbations in Cosmology. We study adiabatic (curvature) and entropy (isocurvature) perturbations produced during a period of cosmological inflation that is driven by multiple scalar fields with an arbitrary interaction potential. A local rotation in field space is performed to separate out the adiabatic and entropy mo...
متن کاملlangauge needs analysis of undergraduate business management and economics students
the aim of conducting this study was to investigate the foreign language learning needs of undergraduate economics students and business management students in faculties of social sciences of alzahra and azad naragh university. in the study, which was designed on the basis of a qualitative-quantitative basis using interviews and questionnaires, 146 female undergraduate business management as we...
15 صفحه اولBrane-World Cosmology, Bulk Scalars and Perturbations
We investigate aspects of cosmology in brane world theories with a bulk scalar field. We concentrate on a recent model motivated from supergravity in singular spaces. After discussing the background evolution of such a brane-world, we present the evolution of the density contrast. We compare our results to those obtained in the (second) Randall– Sundrum scenario and usual 4D scalar–tensor theor...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Classical and Quantum Gravity
سال: 2017
ISSN: 0264-9381,1361-6382
DOI: 10.1088/1361-6382/aa8be1