Results 31 to 40 of about 203,417 (295)
Infinity in string cosmology: A review through open problems [PDF]
, 2016 We review recent developments in the field of string cosmology with particular emphasis on open problems having to do mainly with geometric asymptotics and singularities.
Antoniadis, Ignatios, Cotsakis, Spiros
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Quantum cosmology: effective theory [PDF]
Classical and Quantum Gravity, 2012 75 pages, 3 figures, Invited Topical ...
openaire +2 more sources
Precision probes of QCD at high energies
Journal of High Energy Physics, 2017 New physics, that is too heavy to be produced directly, can leave measurable imprints on the tails of kinematic distributions at the LHC. We use energetic QCD processes to perform novel measurements of the Standard Model (SM) Effective Field Theory.
Simone Alioli +3 more
doaj +1 more source
Journal of High Energy Physics, 2020 To confront the numerical results of Γdiff with the analytical results from section 2.3, we originally considered the theoretical prediction for the diffusion rate given by eq. (2.17), which we re-wrote in eq. (4.25).
Daniel G. Figueroa, Mikhail Shaposhnikov
doaj +1 more source
Renormalized cosmological perturbation theory
Physical Review D, 2006 We develop a new formalism to study nonlinear evolution in the growth of large-scale structure, by following the dynamics of gravitational clustering as it builds up in time. This approach is conveniently represented by Feynman diagrams constructed in terms of three objects: the initial conditions (e.g.
Crocce, M., Scoccimarro, R.
openaire +2 more sources
M-Theory Moduli Space and Cosmology [PDF]
, 2002 We conduct a systematic search for a viable string/M-theory cosmology, focusing on cosmologies that include an era of slow-roll inflation, after which the moduli are stabilized and the Universe is in a state with an acceptably small cosmological constant.
A. Sen +42 more
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SNe Ia Redshift in a Nonadiabatic Universe
Universe, 2018 By relaxing the constraint of adiabatic universe used in most cosmological models, we have shown that the new approach provides a better fit to the supernovae Ia redshift data with a single parameter, the Hubble constant H0, than the standard ΛCDM
Rajendra P. Gupta
doaj +1 more source
, 2005 I review various ideas on MOND cosmology and structure formation beginning with non-relativistic models in analogy with Newtonian cosmology. I discuss relativistic MOND cosmology in the context of Bekenstein's theory and propose an alternative biscalar ...
Combes, F +4 more
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U-duality Covariant M-theory Cosmology [PDF]
, 1997 A manifestly U-duality covariant approach to M-theory cosmology is developed and applied to cosmologies in dimensions D=4,5. Cosmological properties such as expansion powers and Hubble parameters turn out to be U-duality invariant in certain asymptotic ...
André Lukas +13 more
core +3 more sources
Photon‐Sphere Modes in Curved Optical Microcavities: A Black‐Hole Analogue Laser
Advanced Science, EarlyView.An optical analogue of a Schwarzschild black hole is realized using curved microcavities that preserve light‐like geodesics. A new family of laser modes confined around the photon sphere is identified alongside conventional whispering‐gallery modes. Analytical theory, numerical simulations, and experiments reveal curvature‐induced confinement, enabling
Chenni Xu +9 more
wiley +1 more source