Letter: Thermodynamical Properties of Metric Fluctuations During Inflation
نویسندگان
چکیده
منابع مشابه
Thermodynamical properties of metric fluctuations during inflation
During inflation vacuum fluctuations on scales smaller than the Hubble radius are magnified into classical perturbations of the scalar field on super Hubble scales. The primordial perturbations arise solely from the zero-point fluctuations of the quantized fields. Although the region which ultimately expanded to become the observed universe may have contained excitations above the vacuum, these...
متن کاملInflaton field fluctuations from gauge - invariant metric fluctuations during inflation
The evolution of the inflaton field fluctuations from gauge-invariant metric fluctuations is discussed. In particular, the case of a symmetric φ c-exponential potential is analyzed.
متن کاملScalar Metric fluctuations in Space Time Matter inflation
Using the Ponce de Leon background metric, which describes a 5D universe in an apparent vacuum: ¯ G AB = 0, we study the effective 4D evolution of both, the inflaton and gauge-invariant scalar metric fluctuations, in the recently introduced model of space time matter inflation.
متن کامل2 00 3 Metric fluctuations and its evolution during inflation 1
We discuss the evolution of the fluctuations in a symmetric φ c-exponential potential which provides a power-law expansion during inflation using both, the gauge invariant field Φ and the Sasaki-Mukhanov field.
متن کاملBaryogenesis from the amplification of vacuum fluctuations during inflation
We propose that the baryon asymmetry of the Universe may originate from the amplification of quantum fluctuations of a light complex scalar field during inflation. CP-violation is sourced by complex mass terms, which are smaller than the Hubble rate, as well as non-standard kinetic terms. We find that, when assuming 60 e-folds of inflation, an asymmetry in accordance with observation can result...
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: General Relativity and Gravitation
سال: 2002
ISSN: 0001-7701,1572-9532
DOI: 10.1023/a:1020728004921