Emergent Universe with Interacting fluids and Generalized Second Law of Thermodynamics
arXiv:1503.08284 · doi:10.1088/0264-9381/32/11/115001
Abstract
We investigate the emergent universe scenario in the presence of interacting fluids. The non-linear equation of state (EoS) considered in the general theory of relativity for obtaining emergent universe is effectively a cosmological model with a composition of three fluids. In this paper we consider two models to realize viable cosmological scenarios, {\it viz.}, (i) a two-fluid model with interaction of a pressureless fluid with the fluid having the non-linear EoS needed for the emergent universe, and (ii) a three-fluid model with interaction among the three fluids which originate from the EoS of the emergent universe. It is found that realistic cosmological models in accordance with observations are not ruled out for both the above cases. We further show that the generalized second law of thermodynamics is found to hold good in the emergent universe with interacting fluids.
arXiv comment8 pages, 1 figure accepted in Classical and Quantum Gravity (2015)
References in corpus (33)
- Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
- Measurements of Omega and Lambda from 42 High-Redshift Supernovae
- Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
- Thermodynamics of Spacetime: The Einstein Equation of State
- The Cosmological Constant
- First Law of Thermodynamics and Friedmann Equations of Friedmann-Robertson-Walker Universe
- Gravity and the Thermodynamics of Horizons
- Thermodynamic Behavior of Friedmann Equation at Apparent Horizon of FRW Universe
- The Emergent Universe: inflationary cosmology with no singularity
- Thermodynamic route to Field equations in Lanczos-Lovelock Gravity
- The Emergent Universe: An Explicit Construction
- Cosmology and the S-matrix
- Cosmologies with Energy Exchange
- Inflation and de Sitter Thermodynamics
- Thermodynamics of dark energy interacting with dark matter and radiation
- An emergent universe from a loop
- Linear and nonlinear interactions in the dark sector
- Emergent Universe with Exotic Matter
- Cosmic variance and the measurement of the local Hubble parameter
- Transplanckian energy production and slow roll inflation
- Emergent Universe and Phantom Tachyon Model
- From brane assisted inflation to quintessence through a single scalar field
- A k-essence Model Of Inflation, Dark Matter and Dark Energy
- Emergent Universe in Brane World Scenario with Schwarzschild-de Sitter Bulk
- Emergent Universe Scenario in the Einstein-Gauss-Bonnet Gravity with Dilaton
- Constraints on Exotic Matter for An Emergent Universe
- Unified Model of k-Inflation, Dark Matter & Dark Energy
- Cosmological Constant from the Emergent Gravity Perspective
- Interacting Cosmological Fluids and the Coincidence Problem
- An emergent universe supported by a nonlinear sigma model
- Emergent Universe from A Composition of Matter, Exotic Matter and Dark Energy
- Flat limits of curved interacting cosmic fluids
- An interacting model for the cosmological dark sector
Cited by in corpus (6)
- Thermodynamic of universe with a varying dark energy component
- Emergent Universe with particle production
- Einstein's Field Equations as a Fold Bifurcation
- Emergent Scenario in first and second order non-equilibrium thermodynamics and stability analysis
- Thermodynamics and emergent universe
- Emergent Universe as an interaction in the dark sector