Scalar-Field Reconstruction of Ricci--Gauss--Bonnet Dark Energy in Hořava--Lifshitz Cosmology
arXiv:2605.05663 · doi:10.1016/j.physleta.2026.131799
Abstract
This paper reports a Ricci-Gauss-Bonnet (RGB) dark energy model within the framework of Hořava-Lifshitz cosmology and presents a scalar-field reconstruction of the effective dark energy sector. In a spatially flat FRW background with a power-law scale factor, we derive analytical expressions for cosmological parameters, scalar field kinetic term, and the reconstructed potential. The reconstructed EoS parameter exhibits smooth transition toward a cosmological-constant-like regime at late times for suitable choices of the model parameters. The classical stability of the model is analyzed through the squared sound speed, and stable regions of the parameter space are identified. Finally, the generalized second law of thermodynamics is investigated at the apparent horizon, and it is shown that the total entropy variation remains non-negative in this model. From these results it can be concluded that the model provides a theoretically consistent description of late-time acceleration, with physical viability maintained within a specific range of the model parameters.
arXiv comment18 pages, 3 figures
References in corpus (55)
- Dynamics of dark energy
- The Cosmological Constant and Dark Energy
- Modified Gravity and Cosmology
- Quantum Gravity at a Lifshitz Point
- Modified Gravity Theories on a Nutshell: Inflation, Bounce and Late-time Evolution
- Dark Energy and the Accelerating Universe
- The Dark Energy Survey: more than dark energy - an overview
- Unifying phantom inflation with late-time acceleration: scalar phantom-non-phantom transition model and generalized holographic dark energy
- First Law of Thermodynamics and Friedmann Equations of Friedmann-Robertson-Walker Universe
- Reconstructing Dark Energy
- Cosmological Tests of Modified Gravity
- The final state and thermodynamics of dark energy universe
- Dark Energy vs. Modified Gravity
- Dark Energy: Vacuum Fluctuations, the Effective Phantom Phase, and Holography
- Horava-Lifshitz Cosmology
- Inflationary cosmology in modified gravity theories
- Thermodynamics in f(R,T) Theory of Gravity
- Horava-Lifshitz Cosmology: A Review
- Dark energy and the generalized second law
- Cosmology of the Lifshitz universe
- Theoretical Models of Dark Energy
- Deep Connection Between Thermodynamics and Gravity in Gauss-Bonnet Braneworld
- Early and late universe holographic cosmology from a new generalized entropy
- Gravitational induced particle production through a nonminimal curvature-matter coupling
- Horizon Thermodynamics and Gravitational Field Equations in Horava-Lifshitz Gravity
- Constraints on the dark energy from holography
- Horava-Lifshitz Dark Energy
- Generalized second law of thermodynamics in Gauss-Bonnet braneworld
- Features of holographic dark energy under the combined cosmological constraints
- On holographic dark-energy models
- The Holographic Model of Dark Energy and Thermodynamics of Non-Flat Accelerated Expanding Universe
- Some aspects of generalized modified gravity models
- Brief Review of Recent Advances in Understanding Dark Matter and Dark Energy
- All higher-curvature gravities as Generalized quasi-topological gravities
- Ricci-Gauss-Bonnet holographic dark energy
- Snapshot Distances to Type Ia Supernovae -- All in ``One'' Night's Work
- Correspondence of cosmology from non-extensive thermodynamics with fluids of generalized equation of state
- Dark Energy and Dark Matter from an additional adiabatic fluid
- A Definitive Measurement of Time Dilation in the Spectral Evolution of the Moderate-Redshift Type Ia Supernova 1997ex
- Alleviating the cosmological constant problem from particle production
- Apparent horizon and gravitational thermodynamics of the Universe: Solutions to the temperature and entropy confusions, and extensions to modified gravity
- Modified gravity in Arnowitt-Deser-Misner formalism
- Thermodynamic properties of modified gravity theories
- Thermodynamical aspects of relativistic hydrodynamics in f(R,G) gravity
- Sound speed of scalar field dark energy: weak effects and large uncertainties
- Quantization of (1+1)-dimensional Hořava-Lifshitz theory of gravity
- Thermodynamics in Modified Gravity Theories
- Renormalizability of alternative theories of gravity: differences between power counting and entropy argument
- Comparing teh holographic principle inspired dark energy models
- Arnowitt-Deser-Misner representation and Hamiltonian analysis of covariant renormalizable gravity
- Gauss-Bonnet dark energy on Hořava-Lifshitz cosmology
- Ricci-cubic holographic dark energy
- Observational Constraints on the Parameters of Hořava-Lifshitz Gravity
- Cardy-Verlinde entropy in Hořava-Lifshitz gravity
- Resolution of cosmological singularity in Hořava-Lifshitz cosmology