Results 21 to 30 of about 15,499 (146)

Expansion, Geometry, and Gravity [PDF]

, 2004
In general-relativistic cosmological models, the expansion history, matter content, and geometry are closely intertwined. In this brief paper, we clarify the distinction between the effects of geometry and expansion history on the luminosity distance. We
Benoit A, Bernstein J, Chiba T, Coble K, Knop R A, Marc Kamionkowski, Peebles P J E, Ratra B, Riess A G, Robert R Caldwell, Turner M S, Visser M, Wetterich C   +12 more
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Anaxagorovská próza, rétorizující hippokratovské spisy a otázka předplatónské rétorické teorie

Reflexe, 2019
The study begins with the arguments used by Th. Cole and L. Schiappa for their well-known position regarding Plato’s influence upon the genesis of theory of rhetoric in ancient Greece.
Jiří Klouda
doaj   +1 more source

Texture zeros of low-energy Majorana neutrino mass matrix in 3+1 scheme [PDF]

, 2017
In this work we revisit the zero textures in low energy Majorana neutrino mass matrix when the active neutrino sector is extended by a light sterile neutrino in the eV scale i.e., the 3+1 scheme.
Borah, Debasish, Ghosh, Monojit, Gupta, Shivani, Raut, Sushant K.   +3 more
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Primordial non-Gaussianity and Bispectrum Measurements in the Cosmic Microwave Background and Large-Scale Structure [PDF]

, 2010
The most direct probe of non-Gaussian initial conditions has come from bispectrum measurements of temperature fluctuations in the Cosmic Microwave Background and of the matter and galaxy distribution at large scales.
Fergusson, J. R., Liguori, M., Sefusatti, E., Shellard, E. P. S.   +3 more
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Unraveling critical dynamics: The formation and evolution of topological textures [PDF]

, 1999
We study the formation of topological textures in a nonequilibrium phase transition of an overdamped classical O(3) model in 2+1 dimensions. The phase transition is triggered through an external, time-dependent effective mass, parameterized by quench ...
A. A. Belavin, A. D. Rutenberg, A. D. Rutenberg, A. H. Guth, A. J. Bray, A. Knighavko, A. Vilenkin, A. Yates, B. A. Bassett, B. A. Bassett, C. Bauerle, D. Mermin, D. N. Spergel, F. J. Alexander, G. H. Derrick, G. J. Stephens, G. J. Stephens, G. Karra, I. Chuang, I. Tkachev, J. Dziarmaga, L. Kofman, M. B. Hindmarsh, M. E. Dodd, M. J. Bowick, M. M. Salomaa, M. Zapotocky, N. D. Antunes, N. D. Antunes, N. D. Mermin, N. G. Phillips, N. Turok, P. C. Hendry, P. Laguna, R. Carmi, R. Durrer, R. J. Rivers, S. Kasuya, T. H. R. Skyrme, T. W. B. Kibble, T. W. Kibble, V. M. Ruutu, W. H. Press, W. H. Zurek, W. H. Zurek   +44 more
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Topological Defects and Cosmology [PDF]

, 1998
Many particle physics models of matter admit solutions corresponding to stable or long-lived topological defects. In the context of standard cosmology it is then unavoidable that such defects will form during phase transitions in the very early Universe.
A Abrikosov, A Aguirre, A Albrecht, A Albrecht, A Albrecht, A Cohen, A Cohen, A Cohen, A Cohen, A Dolgov, A Ignatiev, A Nelson, A Sakharov, A Sornborger, A Stebbins, A Stebbins, A Vilenkin, A Vilenkin, A Vilenkin, A Vilenkin, B Allen, B Allen, B Banerjee, B Banerjee, B Carter, D Bennett, D Bennett, D Toussaint, D Vollick, F Klinkhamer, G t’Hooft, H Nielsen, H Sato, I Chuang, J Borrill, J Magueijo, J Preskill, J Silk, L McLerran, L McLerran, L Perivolarapoulos, L Perivolaropoulos, M Bowick, M Dine, M Gleiser, M Hindmarsh, M Joyce, M Joyce, M Joyce, M Salomaa, M Shaposhnikov, M Shaposhnikov, M Trodden, M Yoshimura, N Kaiser, N Manton, N Turok, N Turok, N Turok, N Turok, N Turok, N Turok, N Turok, P Arnold, P Gennes de, P Mähönen, R Brandenberger, R Brandenberger, R Brandenberger, R Brandenberger, R Brandenberger, R Brandenberger, R Brandenberger, R Brandenberger, R Brandenberger, R Brandenberger, R Moessner, R Moessner, R Scherrer, Robert H. Brandenberger, S Dimopoulos, S Weinberg, S White, T Hara, T Hara, T Hara, T Vachaspati, T Vachaspati, T Vachaspati, T W B Kibble, T W B Kibble, U-L Pen, V Kuzmin, V Zanchin, W Hu, W Perkins, Ya B Zeldovich, Ya B Zel’dovich, Ya B Zel’dovich, Ya B Zel’dovich   +99 more
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Creating vortons and three-dimensional skyrmions from domain wall annihilation with stretched vortices in Bose-Einstein condensates [PDF]

, 2012
We propose a mechanism to create a vorton or three-dimensional skyrmion in phase-separated two-component BECs with the order parameters Psi_1 and Psi_2 of the two condensates.
Kasamatsu, Kenichi, Nitta, Muneto, Takeuchi, Hiromitsu, Tsubota, Makoto   +3 more
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Topological Defects in an Open Universe [PDF]

, 1994
(To appear in Nuclear Physics B Supplements Proceedings section) This talk will explore the evolution of topological defects in an open universe. The rapid expansion of the universe in an open model slows defects and suppresses the generation of CBR ...
Albrecht, Albrecht, Allen, Bardeen, Bardeen, Barriol, Baugh, Bennett, Bennett, Bennett, Bennett, Cheng, D.N. Spergel, Davis, Dekel, Deliyannis, Devlin, Dragovan, Fisher, Ganga, Geller, Gooding, Gouda, Gould, Hughes, Jacoby, Jaffe, Kibble, Kodama, Lahav, Melott, Nagasawa, Ostriker, Peebles, Peebles, Pen, Perivolaropoulos, Press, Press, Regos, Sachs, Spergel, Spergel, Turok, Turok, U. Pen, Vachaspati, Vilenkin, Vogeley, Walker, Watson, White, Wilson, Wollack, Wright, Wright   +55 more
core   +3 more sources

Primordial non-Gaussianity from the large scale structure [PDF]

, 2010
Primordial non-Gaussianity is a potentially powerful discriminant of the physical mechanisms that generated the cosmological fluctuations observed today.
Desjacques, Vincent, Seljak, Uros
core   +1 more source

Neutrino mass textures with one vanishing minor and two equal cofactors

, 2013
In this paper, we carry out a numerical and systematic analysis of the neutrino mass textures, which contain one vanishing minor and an equality between two cofactors.
Wang, Weijian
core   +1 more source