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Classical and Quantum Gravity, 2003 It is shown in detail that the dynamics of the Einstein-dilaton-p-form system in the vicinity of a spacelike singularity can be asymptotically described, at a generic spatial point, as a billiard motion in a region of Lobachevskii space (realized as an hyperboloid in the space of logarithmic scale factors). This is done within the Hamiltonian formalism,
Damour, T., Henneaux, M., Nicolai, H.
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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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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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Constraining the $\Lambda$CDM and Galileon models with recent cosmological data [PDF]
, 2017 The Galileon theory belongs to the class of modified gravity models that can explain the late-time accelerated expansion of the Universe. In previous works, cosmological constraints on the Galileon model were derived, both in the uncoupled case and with ...
Astier, P. +6 more
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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
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Thick Domain Walls in AdS Black Hole Spacetimes [PDF]
, 2006 Equations of motion for a real self-gravitating scalar field in the background of a black hole with negative cosmological constant were solved numerically.
A. Vilenkin +6 more
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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 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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Journal of High Energy Physics, 1999 JHEP LateX, 20 pages, no figures;v2 references added and a few minor changes; (v3) Corrected an inconsequential error in eq. 6.2, 6.3. We thank D. Kutasov for bringing this to our attention (v4) Corrected inconsequential errors in (4.4)-(4.7) and (5.11). We thank A.
Kehagias, Alexandros A., Kiritsis, Elias
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