# Hubble sinks in the low-redshift swampland

@article{Banerjee2020HubbleSI, title={Hubble sinks in the low-redshift swampland}, author={Aritra Banerjee and Haiying Cai and Lavinia Heisenberg and Eoin 'O Colg'ain and M. M. Sheikh-Jabbari and Tao Yang}, journal={arXiv: Cosmology and Nongalactic Astrophysics}, year={2020} }

Local determinations of the Hubble constant $H_0$ favour a higher value than Planck based on CMB and $\Lambda$CDM. Through a model-independent expansion, we show that low redshift ($z \lesssim 0.7$) data comprising baryon acoustic oscillations (BAO), cosmic chronometers and Type Ia supernovae has a preference for Quintessence models that lower $H_0$ relative to $\Lambda$CDM. In addition, we confirm that an exponential coupling to dark matter cannot alter this conclusion in the same redshift… Expand

#### 27 Citations

Cosmology Intertwined II: The Hubble Constant Tension

- Physics
- 2020

The current cosmological probes have provided a fantastic confirmation of the standard $\Lambda$ Cold Dark Matter cosmological model, that has been constrained with unprecedented accuracy. However,… Expand

Does Hubble tension signal a breakdown in FLRW cosmology?

- Physics
- Classical and Quantum Gravity
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The tension between early and late Universe probes of the Hubble constant has motivated various new FLRW cosmologies. Here, we reanalyse the Hubble tension with a recent age of the Universe… Expand

Perturbations in a scalar field model with virtues of ΛCDM

- Physics
- 2021

In the era of precision cosmology, the cosmological constant Λ gives quite an accurate description of the evolution of the Universe, but it is still plagued with the fine-tuning problem and the… Expand

The Hubble Tension, the M Crisis of Late Time H(z) Deformation Models and the Reconstruction of Quintessence Lagrangians

- Physics
- Universe
- 2021

We present a detailed and pedagogical analysis of recent cosmological data, including CMB, BAO, SnIa and the recent local measurement of H0. We thus obtain constraints on the parameters of these… Expand

A stringy perspective on the coincidence problem

- Physics
- Journal of High Energy Physics
- 2021

Abstract
We argue that, for string compactifications broadly consistent with swampland constraints, dark energy is likely to signal the beginning of the end of our universe as we know it, perhaps… Expand

Reheating in holographic cosmology and connecting to Λ-MSSM constructions for particle physics

- Journal of High Energy Physics
- 2021

Abstract
In this paper we model the transition from the non-geometric holographic cosmology regime, to the usual radiation dominated (RD) cosmology, known as reheating in the case of (perturbative)… Expand

A data-driven reconstruction of Horndeski gravity via the Gaussian processes

- Physics
- Journal of Cosmology and Astroparticle Physics
- 2021

We reconstruct the Hubble function from cosmic chronometers, supernovae, and baryon acoustic oscillations compiled data sets via the Gaussian process (GP) method and use it to draw out Horndeski… Expand

On the occurrence of finite-time singularities in Swampland-related quintessence dark energy models

- Physics
- International Journal of Geometric Methods in Modern Physics
- 2021

In this work, we focus on the phase space singularities of interactive quintessence model in the presence of matter fluid. This model is related to swampland studies, that the outcomes affect all… Expand

Dimensional reduction and (Anti) de Sitter bounds

- Physics
- 2021

Dimensional reduction has proven to be a surprisingly powerful tool for delineating the boundary between the string landscape and the swampland. Bounds from the Weak Gravity Conjecture and the… Expand

Fractional dark energy: Phantom behavior and negative absolute temperature

- Physics
- Physical Review D
- 2021

The fractional dark energy (FDE) model describes the accelerated expansion of the Universe through a nonrelativistic gas of particles with a noncanonical kinetic term. This term is proportional to… Expand

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