A Cosmological Model of Thermodynamic Open Universe
نویسندگان
چکیده
منابع مشابه
Canonical Quantization of an Open Universe Model with a Cosmological Constant
We study canonical quantization of an open universe with a cosmological constant and minimal massless scalar field. It is found that for the exotic quantum states of the scalar field the Wheeler-DeWitt equation of the Lorentzian geometry has a classically forbidden regime extending from the cosmological singularity to a finite scale factor and then a classically allowed regime extending to infi...
متن کاملOpen-Universe Weighted Model Counting
Weighted model counting (WMC) has recently emerged as an effective and general approach to probabilistic inference, offering a computational framework for encoding a variety of formalisms, such as factor graphs and Bayesian networks. The advent of large-scale probabilistic knowledge bases has generated further interest in relational probabilistic representations, obtained by according weights t...
متن کاملThe Spherical Collapse Model in a Universe with Cosmological Constant
The spherical collapse model was first developed by Gunn & Gott 1 for a flat universe with no cosmological constant. It assumes that the process of formation of bound objects in the universe can be at first approximation described by evolution of an uniformly overdense spherical region in otherwise smooth background. Despite its simplicity, the model has been widely used to explain properties o...
متن کاملThe Thermodynamic Universe
Using Planck scale oscillators in the background dark energy in a model that parallels the theory of phonons, we deduce the Planck mass, the elementary particle mass scale, the mass of the Universe and a recently discovered residual energy in the cosmic background. We also deduce the Beckenstein temperature formula for black holes. Finally we show that the model explains the four minute time la...
متن کاملA cosmological surprise: the universe accelerates.
A cosmological surprise: the universe accelerates. Cosmology is in turmoil. The standard model of a few years ago has recently been abandoned and replaced by new ideas. The reasons for this dramatic change are new measurements of the geometry and the matter contents of the universe. The new model implies a dynamical age of the universe that accommodates the oldest known stellar objects, but rai...
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: International Journal of Theoretical Physics
سال: 2012
ISSN: 0020-7748,1572-9575
DOI: 10.1007/s10773-012-1142-6