Results 61 to 70 of about 46,785 (128)

Inflation and Loop Quantum Cosmology [PDF]

Proceedings of 35th International Conference of High Energy Physics — PoS(ICHEP 2010), 2011
5 pages, Proceedings of the 35th International Conference on High Energy Physics, Paris, 2010 (ICHEP 2010)
openaire   +3 more sources

Constraining the Break of Spatial Diffeomorphism Invariance with Planck Data

, 2017
The current most accepted paradigm for the early universe cosmology, the inflationary scenario, shows a good agreement with the recent Cosmic Microwave Background (CMB) and polarization data.
Alcaniz, J. S., Benetti, M., Graef, L. L.   +2 more
core   +1 more source

Initial conditions for hybrid inflation

, 2000
In hybrid inflation models, typically only a tiny fraction of possible initial conditions give rise to successful inflation, even if one assumes spatial homogeneity.
A. D. Linde, A. Linde, A. Linde, A. Linde, A. R. Liddle, A. R. Liddle, A. R. Liddle, A. Vilenkin, Andrew R. Liddle, C. Panagiotakopoulos, D. Goldwirth, D. Goldwirth, D. H. Lyth, E. F. Bunn, E. Fahri, E. J. Copeland, G. Felder, G. Lazarides, G. Lazarides, H. Kodama, J. Kung, J. M. Cline, L. Randall, Luís E. Mendes, M. C. Bento, M. Gogberashvili, N. Arkani-Hamed, N. J. Cornish, N. Tetradis, P. Binétruy, P. Kanti, R. Easther, R. Maartens, R. Maartens, T. Shiromizu, T. Vachaspati, V. A. Rubakov, Z. Berezhiani   +37 more
core   +1 more source

Cosmological Inflation and the Nature of Time [PDF]

, 1996
19 pages, self-unpacking, uuencoded, gz-compressed postscript file, in Proceedings of the International School of Astrophysics, ``D.
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Is cosmological constant needed in Higgs inflation?

Physics Letters B, 2014
The detection of B-mode shows a very powerful constraint to theoretical inflation models through the measurement of the tensor-to-scalar ratio $r$. Higgs boson is the most likely candidate of the inflaton field. But usually, Higgs inflation models predict a small value of $r$, which is not quite consistent with the recent results from BICEP2.
Chao-Jun Feng, Chao-Jun Feng, Xin-Zhou Li   +2 more
openaire   +4 more sources

Lectures on Cosmic Inflation and its Potential Stringy Realizations

, 2007
These notes present a brief introduction to Hot Big Bang cosmology and Cosmic Inflation, together with a selection of some recent attempts to embed inflation into string theory.
Acharya B S, Achucarro A, Alabidi L Lyth D H, Allahverdi R, Avgoustidis A Cremades D Quevedo F, Balasubramanian V, Barnaby N, Barnaby N Cline J M, Baumann D Dymarsky A Klebanov I McAllister L Steinhardt P, Baumann D Dymarsky A Klebanov I R Maldacena J McAllister L Murugan A, Baumann D Dymarsky A Klebanov I R McAllister L, Becker K, Berg M, Berg M Haack M Pajer E, Blanco-Pillado J J, Blanco-Pillado J J, Blanco-Pillado J J, Brandenberger R H Nayeri A Patil S P Vafa C, Brax Ph van de Bruck C Davis A C Davis S C Jeannerot R Postma M, Burgess C P, Burgess C P, Burgess C P, Burgess C P, Burgess C P, Burgess C P, Burgess C P, Burgess C P, Burgess C P, Burgess C P, Burgess C P, Burgess C P, Burgess C P Holman R Hoover D, C P Burgess, Chen C M, Chen P, Chen X G, Chen X G, Chen X Tye S H, Chialva D, Cline J M, Conlon J P, Conlon J P, Conlon J P, Conlon J P Quevedo F, Copeland E J, Cremades D, Cremades D, Cremades D, Dasgupta K, Dasgupta K, Dasgupta K Hsu J P Kallosh R Linde A Zagermann M, de Carlos B, Denef F, Denef F Douglas M R Florea B Grassi A Kachru S, Denef F Douglas M R Florea B Grassi A Kachru S, DeWolfe O, Dimopoulos S Kachru S McGreevy J Wacker J G, Dodelson S, Dudas E, Dvali G, Dvali G, Dvali G R Shafi Q Solganik S, Enqvist K Mether L Nurmi S, Firouzjahi H, Freivogel B, Garcia-Bellido J, Gomez-Reino M, Green M B, Greene B Weltman A, Grishchuk L P, Herdeiro C, Hsu J P, Hsu J P, Iizuka N Trivedi S P, Jones N, Kachru S, Kachru S, Kallosh R, Kallosh R, Kallosh R, Kallosh R, Kaloper N, Kaloper N, Kinney W H, Kofman L, Kolb E W, Koyama F Tachikawa Y Watari T, Krause A Pajer E, Lalak Z, Lalak Z Langlois D Pokorski S Turzynski K, Lalak Z Ross G G Sarkar S, Langfelder P, Leblond L, Liddle A R, Linde A, Linde A, Linde A, Linde A, Linde A D, Linde A D, Lyth D H, McAllister L, Mukhanov V, Peebles P J E, Peiris H V Baumann D Friedman B Cooray A, Pilo L, Polarski D, Polchinski J, Polchinski J Efthimiou C Greene B, Postma M, Quevedo F, Ryden B, Saltman A, Shandera S E Tye S H, Simon J Jimenez R Verde L Berglund P Balasubramanian V, Spergel D N, Steinhardt P J, Tasinato G, Terning J, Tye S H H, Villadoro G, Weinberg S, Weinberg S, Westphal A, Westphal A, Zweibach B   +125 more
core   +1 more source

Inflation and Birth of Cosmological Perturbations [PDF]

, 2014
17 pages, 5 figures. Prepared for the Proceedings of Relativity and Gravitation: 100 years after Einstein in Prague, Prague, 25-29 June ...
openaire   +3 more sources

Kinetic inflation in stringy and other cosmologies [PDF]

Physical Review D, 1995
An inflationary epoch driven by the kinetic energy density in a dynamical Planck mass is studied. In the conformally related Einstein frame it is easiest to see the demands of successful inflation cannot be satisfied by kinetic inflation alone. Viewed in the original Jordan-Brans-Dicke frame, the obstacle is manifest as a kind of graceful exit problem ...
openaire   +4 more sources

Constraining barrow entropy-based cosmology with power-law inflation. [PDF]

Eur Phys J C Part Fields, 2023
Luciano GG.
europepmc   +1 more source

Stability Properties of Geometrothermodynamic Cosmological Models. [PDF]

Entropy (Basel), 2023
Beissen N, Abishev M, Khassanov M, Aitassov T, Mamatova S, Toktarbay S.   +5 more
europepmc   +1 more source