Reconstruction of the scalar field potential in nonmetricity gravity through Gaussian processes by Gaurav N. Gadbail, Sanjay Mandal, P.K. Sahoo, Kazuharu Bamba

“…In contrast, we find that the early dark energy has minimal effect on the present-time accelerated expansion of the universe.…”
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New models of quintessential inflation featuring plateau and hilltop potentials by Swagat S. Mishra, Varun Sahni

“…Abstract We introduce a new class of hilltop and plateau potentials which can successfully unify inflation and dark energy resulting in quintessential inflation (QI). …”
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Thermodynamics of the substantial universe by V. Yu. Stetsenko

“…The thermodynamic ban on this theory makes the hypothesis of dark energy expanding the substantial Universe also erroneous. …”
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Graviatoms with de Sitter Interior by Irina Dymnikova, Michael Fil’chenkov

“…We present a graviatom with de Sitter interior as a new candidate to atomic dark matter generically related to a vacuum dark energy through its de Sitter vacuum interior. It is a gravitationally bound quantum system consisting of a nucleus represented by a regular primordial black hole (RPBH), its remnant or gravitational vacuum soliton G-lump, and a charged particle. …”
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Instability of Cauchy horizon induced by the graviton mass by Lu Chen, Shun Jiang

“…Massive gravitons are typically introduced to address cosmological issues such as dark energy. In the context of considering massless scalar field perturbations in a charged static black hole, our paper explores the impact of graviton mass on the stability of the Cauchy horizon. …”
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What Remains to Be Discovered? by Pavel Nováček

“…Among the most promising challenges on the border between science and our imaginations, is an exploration of our universe, and potential contact with an extra-terrestrial civilisation, better understanding of space, time, matter, and energy (including “dark matter” and “dark energy”) and, of course, the “unthinkable” potential of the human brain. …”
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About thermodynamics of Schwarzschild black holes in a three-dimensional quantum vacuum with generalized uncertainty relations by Fiscaletti Davide

“…Finally, the thermodynamics of Schwarzschild black holes surrounded by quintessence is studied in a picture where quintessence, and thus dark energy, is the manifestation of more elementary quantum vacuum energy density fluctuations as well as a state parameter of the vacuum.…”
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5σ tension between Planck cosmic microwave background and eBOSS Lyman-alpha forest and constraints on physics beyond ΛCDM by Keir K. Rogers, Vivian Poulin

“…Model extensions can alleviate this tension: running in the tilt of the primordial power spectrum (α_{s}∼−0.01); a fraction ∼(1−5)% of ultralight axion dark matter (DM) with particle mass ∼10^{−25} eV or warm DM with mass ∼10 eV. The new Dark Energy Spectroscopic Instrument survey, coupled with high-accuracy modeling, will help distinguish the source of this discrepancy.…”
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Cosmology in the Universe with Distance Dependent Lorentz-Violating Background by C. A. G. Almeida, M. A. Anacleto, F. A. Brito, E. Passos, J. R. L. Santos

“…We also show that the regime of dark energy at large distances (low redshifts) is essentially dominated by the presence of the Lorentz-violating background.…”
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A Cosmological Scaling Relation for Describing the Late Time Dynamics by Gerardo Cristofano, Orlando Luongo

“…Under this hypothesis, the scaling relation is interpreted as a thermodynamic modification able to describe the cosmological dynamics at late times. In this scheme, dark energy emerges, as a consequence of assuming the validity of our scale relation. …”
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Spinor Quintom Cosmology with Intrinsic Spin by Emre Dil

“…We consider a spinor quintom dark energy model with intrinsic spin, in the framework of Einstein-Cartan-Sciama-Kibble theory. …”
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Axions in the dark dimension by Naomi Gendler, Cumrun Vafa

“…The axion mass surprisingly coincides with the mass scale for the dark energy, the dark matter tower, and the neutrinos. …”
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Toy Models of Universe with an Effective Varying Λ-Term in Lyra Manifold by Martiros Khurshudyan

“…Research on the accelerated expansion of our Universe captures a lot of attention. The dark energy (DE) is a way to explain it. In this paper we will consider scalar field quintessence DE with ωDE>-1 EoS, where the dynamics of the DE models related to the dynamics of the scalar field. …”
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Constraints on the Dark Side of the Universe and Observational Hubble Parameter Data by Tong-Jie Zhang, Cong Ma, Tian Lan

“…This paper is a review on the observational Hubble parameter data that have gained increasing attention in recent years for their illuminating power on the dark side of the universe: the dark matter, dark energy, and the dark age. Currently, there are two major methods of independent observational H(z) measurement, which we summarize as the “differential age method” and the “radial BAO size method.” …”
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The Other Side of Gravity and Geometry: Antigravity and Anticurvature by M. I. Wanas

“…Also, it may throw some light on the mystery of physical nature of “Dark Energy.”…”
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Astronomical Signatures of Dark Matter by Paul Gorenstein, Wallace Tucker

“…The unambiguous detection of dark matter and more recently evidence for dark energy has positioned astronomy at the frontier of fundamental physics as it was in the 17th century.…”
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Constraining the Parameters of Modified Chaplygin Gas in Einstein-Aether Gravity by Ujjal Debnath

“…We have assumed FRW model of the universe in Einstein-Aether gravity filled with dark matter and modified Chaplygin gas (MCG) type dark energy. We present the Hubble parameter in terms of some unknown parameters and observational parameters with the redshift z. …”
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Phenomenology of MaVaN’s Models in Reactor Neutrino Data by M. F. Carneiro, P. C. de Holanda

“…Mass Varying Neutrinos (MaVaN’s) mechanisms were proposed to link the neutrino mass scale with the dark energy density, addressing the coincidence problem. …”
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Dynamical system analysis for extended f(P) gravity coupled with scalar field by Ratul Mandal, Ujjal Debnath, Anirudh Pradhan

“…$$f(P)=\alpha P +\beta P^2$$ f ( P ) = α P + β P 2 , where $$\alpha $$ α and $$\beta $$ β are constant parameters. As an additional dark energy component, we take a canonical scalar field $$\phi $$ ϕ , and several types of interaction between the dark components are considered. …”
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Exploring the evolution of structure growth in the universe with field-fluid interactions through dynamical stability analysis by Anirban Chatterjee, Abhijit Bandyopadhyay, Debasish Majumdar

“…Abstract We investigate an interacting quintessence dark energy – dark matter scenario and its impact on structure formation by analyzing the evolution of scalar perturbations. …”
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