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James B. Mertens

Researcher at Perimeter Institute for Theoretical Physics

Publications -  39
Citations -  1234

James B. Mertens is an academic researcher from Perimeter Institute for Theoretical Physics. The author has contributed to research in topics: Cosmic microwave background & Universe. The author has an hindex of 13, co-authored 33 publications receiving 642 citations. Previous affiliations of James B. Mertens include University of Toronto & Washington University in St. Louis.

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Cosmology Intertwined: A Review of the Particle Physics, Astrophysics, and Cosmology Associated with the Cosmological Tensions and Anomalies

Elcio Abdalla, +202 more
TL;DR: In this paper , the authors focus on the 5.0σ tension between the Planck CMB estimate of the Hubble constant H0 and the SH0ES collaboration measurements and discuss the importance of trying to fit a full array of data with a single model.
Journal Article

The Simons Observatory

Adrian T. Lee, +281 more
TL;DR: The Simons Observatory (SO) is a ground-based cosmic microwave background (CMB) experiment sited on Cerro Toco in the Atacama Desert in Chile that promises to provide breakthrough discoveries in fundamental physics, cosmology, and astrophysics as mentioned in this paper.
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Departures from the Friedmann-Lemaitre-Robertston-Walker Cosmological Model in an Inhomogeneous Universe: A Numerical Examination

TL;DR: This work represents the first numerical cosmological study that is fully relativistic, nonlinear, and without symmetry.
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Gravitational radiation from first-order phase transitions in the presence of a fluid

TL;DR: In this article, numerical simulations of a scalar field coupled to a fluid for a set of models that represent different types of first-order phase transitions are presented, and the final gravitational wave spectrum is parametrized as a function of the ratio of the energies of the constituents and the coupling between the two sectors.
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Integration of inhomogeneous cosmological spacetimes in the BSSN formalism

TL;DR: This paper used fully relativistic models to understand the effects of inhomogeneous matter distribution on the evolution of the universe and found that these models can be used to understand how the universe evolves.