Results 41 to 50 of about 536,719 (375)
Physical Review D, 1995 An exploratory study of the cosmology of moduli in string theory. Moduli are argued to be natural inflaton fields and lead to a robust inflationary cosmology in which inflation takes place at the top of domain walls. The amplitude of microwave background fluctuations constrains the dynamics responsible for inflation to take place at a higher scale than
Banks, T. +4 more
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simba: Cosmological simulations with black hole growth and feedback [PDF]
Monthly notices of the Royal Astronomical Society, 2019 We introduce the Simba simulations, the next generation of the Mufasa cosmological galaxy formation simulations run with Gizmo's meshless finite mass hydrodynamics.
R. Dav'e +5 more
semanticscholar +1 more source
Detecting gravitational waves from cosmological phase transitions with LISA: an update [PDF]
Journal of Cosmology and Astroparticle Physics, 2019 We investigate the potential for observing gravitational waves from cosmological phase transitions with LISA in light of recent theoretical and experimental developments. Our analysis is based on current state-of-the-art simulations of sound waves in the
C. Caprini +13 more
semanticscholar +1 more source
Precision cosmology, Accuracy cosmology and Statistical cosmology [PDF]
Proceedings of the International Astronomical Union, 2014 AbstractThe avalanche of data over the past 10-20 years has propelled cosmology into the “precision era”. The next challenge cosmology has to meet is to enter the era of accuracy. Because of the intrinsic nature of studying the Cosmos and the sheer amount of data available now and coming soon, the only way to meet this challenge is by developing ...
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Cosmological backgrounds of gravitational waves [PDF]
Classical and quantum gravity, 2018 Gravitational waves (GWs) have a great potential to probe cosmology. We review early universe sources that can lead to cosmological backgrounds of GWs.
C. Caprini, Daniel G. Figueroa
semanticscholar +1 more source
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2018 The discovery of the Higgs boson in 2012 and other results from the Large Hadron Collider have confirmed the standard model of particle physics as the correct theory of elementary particles and their interactions up to energies of several TeV. Remarkably, the theory may even remain valid all the way to the Planck scale of quantum gravity, and therefore
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Cosmological aspects of the clockwork axion
Journal of High Energy Physics, 2018 The clockwork axion refers to a family of aligned multi-axion models that lead to an exponential hierarchy between the scale of Peccei-Quinn symmetry breaking and the scale of the axion decay constant.
Andrew J. Long
doaj +1 more source
The updated DESGW processing pipeline for the third LIGO/VIRGO observing run [PDF]
EPJ Web of Conferences, 2020 The DESGW group seeks to identify electromagnetic counterparts of gravitational wave events seen by the LIGO-VIRGO network, such as those expected from binary neutron star mergers or neutron star-black hole mergers.
Herner Kenneth +12 more
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Cosmological Cutting Rules [PDF]
Journal of High Energy Physics, 2021 Primordial perturbations in our universe are believed to have a quantum origin, and can be described by the wavefunction of the universe (or equivalently, cosmological correlators). It follows that these observables must carry the imprint of the founding
S. Melville, E. Pajer
semanticscholar +1 more source
Cosmological observatories [PDF]
Classical and Quantum GravityAbstract We study the static patch of de Sitter space in the presence of a timelike boundary. We impose that the conformal class of the induced metric and the trace of the extrinsic curvature, K, are fixed at the boundary. We present the thermodynamic structure of de Sitter space subject to these boundary conditions, for static and ...
Dionysios Anninos +2 more
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