540 citations · 1.6k across the 15 of their papers we have counts for
15 papers
Varying fundamental constants meet Hubble
Jens Chluba, Luke Hart
Fundamental physical constants need not be constant, neither spatially nor temporally. -- This seeming simple statement has profound implications for a wide range of physical proce…
A cosmic microwave background search for fine-structure constant evolution
Hurum Maksora Tohfa, Jack Crump, Ethan Baker +4
In some extensions of the standard model of particle physics, the values of the fundamental coupling constants vary in space and time. Some observations of quasars hint at time and…
Using the cosmological recombination radiation to probe early dark energy and fundamental constant variations
Luke Hart, Jens Chluba
The cosmological recombination radiation (CRR) is one of the guaranteed spectral distortion signals from the early Universe. The CRR photons from hydrogen and helium pre-date the l…
Cosmology Intertwined: A Review of the Particle Physics, Astrophysics, and Cosmology Associated with the Cosmological Tensions and Anomalies
Elcio Abdalla, Guillermo Franco Abellán, Amin Aboubrahim +200
In this paper we will list a few important goals that need to be addressed in the next decade, also taking into account the current discordances between the different cosmological…
Varying fundamental constants principal component analysis: additional hints about the Hubble tension
Luke Hart, Jens Chluba
Varying fundamental constants (VFC) [e.g., the fine-structure constant, ] can arise in numerous extended cosmologies. Through their effect on the decoupling of baryons…
Cosmology Intertwined IV: The Age of the Universe and its Curvature
Eleonora Di Valentino, Luis A. Anchordoqui, Ozgur Akarsu +88
A precise measurement of the curvature of the Universe is of primeval importance for cosmology since it could not only confirm the paradigm of primordial inflation but also help in…
Cosmology Intertwined III: and
Eleonora Di Valentino, Luis A. Anchordoqui, Ozgur Akarsu +89
The standard Cold Dark Matter cosmological model provides a wonderful fit to current cosmological data, but a few tensions and anomalies became statistically significant with t…
Cosmology Intertwined II: The Hubble Constant Tension
Eleonora Di Valentino, Luis A. Anchordoqui, Ozgur Akarsu +90
The current cosmological probes have provided a fantastic confirmation of the standard Cold Dark Matter cosmological model, that has been constrained with unprecedented accurac…
Cosmology Intertwined I: Perspectives for the Next Decade
Eleonora Di Valentino, Luis A. Anchordoqui, Ozgur Akarsu +89
The standard Cold Dark Matter cosmological model provides an amazing description of a wide range of astrophysical and astronomical data. However, there are a few big open quest…
Sensitivity forecasts for the cosmological recombination radiation in the presence of foregrounds
Luke Hart, Aditya Rotti, Jens Chluba
The cosmological recombination radiation (CRR) is one of the inevitable CDM spectral distortions of the cosmic microwave background (CMB). While it shows a rich spectral structu…
Improved model-independent constraints on the recombination era and development of a direct projection method
Luke Hart, Jens Chluba
The precision of recent experiments such as have allowed us to constrain standard and non-standard physics (e.g., due to dark matter annihilation or varying fundamen…
Updated fundamental constant constraints from Planck 2018 data and possible relations to the Hubble tension
Luke Hart, Jens Chluba
We present updated constraints on the variation of the fine structure constant, , and effective electron rest mass, , during the cosmological recombination e…
New Horizons in Cosmology with Spectral Distortions of the Cosmic Microwave Background
J. Chluba, M. H. Abitbol, N. Aghanim +27
Voyage 2050 White Paper highlighting the unique science opportunities using spectral distortions of the cosmic microwave background (CMB). CMB spectral distortions probe many proce…
Microwave Spectro-Polarimetry of Matter and Radiation across Space and Time
Jacques Delabrouille, Maximilian H. Abitbol, Nabila Aghanim +77
This paper discusses the science case for a sensitive spectro-polarimetric survey of the microwave sky. Such a survey would provide a tomographic and dynamic census of the three-di…
New constraints on time-dependent variations of fundamental constants using Planck data
Luke Hart, Jens Chluba
Observations of the CMB today allow us to answer detailed questions about the properties of our Universe, targeting both standard and non-standard physics. In this paper, we study…