Literature DB >> 11909442

Measuring the speed of sound of quintessence.

Joel K Erickson1, R R Caldwell, Paul J Steinhardt, C Armendariz-Picon, V Mukhanov.   

Abstract

Quintessence, a time-varying energy component that may account for the accelerated expansion of the universe, can be characterized by its equation of state and sound speed. In this paper, we show that if the quintessence density is at least 1% of the critical density at the surface of last scattering the cosmic microwave background anisotropy can distinguish between models whose sound speed is near the speed of light versus near zero, which could be useful in distinguishing competing candidates for dark energy.

Year:  2002        PMID： 11909442     DOI： 10.1103/PhysRevLett.88.121301

Source DB:  PubMed          Journal:  Phys Rev Lett        ISSN： 0031-9007            Impact factor:   9.161


  3 in total

Review 1.  Cosmology and Fundamental Physics with the Euclid Satellite.

Authors:  Luca Amendola; Stephen Appleby; David Bacon; Tessa Baker; Marco Baldi; Nicola Bartolo; Alain Blanchard; Camille Bonvin; Stefano Borgani; Enzo Branchini; Clare Burrage; Stefano Camera; Carmelita Carbone; Luciano Casarini; Mark Cropper; Claudia de Rham; Cinzia Di Porto; Anne Ealet; Pedro G Ferreira; Fabio Finelli; Juan García-Bellido; Tommaso Giannantonio; Luigi Guzzo; Alan Heavens; Lavinia Heisenberg; Catherine Heymans; Henk Hoekstra; Lukas Hollenstein; Rory Holmes; Ole Horst; Knud Jahnke; Thomas D Kitching; Tomi Koivisto; Martin Kunz; Giuseppe La Vacca; Marisa March; Elisabetta Majerotto; Katarina Markovic; David Marsh; Federico Marulli; Richard Massey; Yannick Mellier; David F Mota; Nelson J Nunes; Will Percival; Valeria Pettorino; Cristiano Porciani; Claudia Quercellini; Justin Read; Massimiliano Rinaldi; Domenico Sapone; Roberto Scaramella; Constantinos Skordis; Fergus Simpson; Andy Taylor; Shaun Thomas; Roberto Trotta; Licia Verde; Filippo Vernizzi; Adrian Vollmer; Yun Wang; Jochen Weller; Tom Zlosnik
Journal:  Living Rev Relativ       Date:  2013-09-02       Impact factor: 40.429

Review 2.  Cosmology and fundamental physics with the Euclid satellite.

Authors:  Luca Amendola; Stephen Appleby; Anastasios Avgoustidis; David Bacon; Tessa Baker; Marco Baldi; Nicola Bartolo; Alain Blanchard; Camille Bonvin; Stefano Borgani; Enzo Branchini; Clare Burrage; Stefano Camera; Carmelita Carbone; Luciano Casarini; Mark Cropper; Claudia de Rham; Jörg P Dietrich; Cinzia Di Porto; Ruth Durrer; Anne Ealet; Pedro G Ferreira; Fabio Finelli; Juan García-Bellido; Tommaso Giannantonio; Luigi Guzzo; Alan Heavens; Lavinia Heisenberg; Catherine Heymans; Henk Hoekstra; Lukas Hollenstein; Rory Holmes; Zhiqi Hwang; Knud Jahnke; Thomas D Kitching; Tomi Koivisto; Martin Kunz; Giuseppe La Vacca; Eric Linder; Marisa March; Valerio Marra; Carlos Martins; Elisabetta Majerotto; Dida Markovic; David Marsh; Federico Marulli; Richard Massey; Yannick Mellier; Francesco Montanari; David F Mota; Nelson J Nunes; Will Percival; Valeria Pettorino; Cristiano Porciani; Claudia Quercellini; Justin Read; Massimiliano Rinaldi; Domenico Sapone; Ignacy Sawicki; Roberto Scaramella; Constantinos Skordis; Fergus Simpson; Andy Taylor; Shaun Thomas; Roberto Trotta; Licia Verde; Filippo Vernizzi; Adrian Vollmer; Yun Wang; Jochen Weller; Tom Zlosnik
Journal:  Living Rev Relativ       Date:  2018-04-12       Impact factor: 40.429

3.  Rigorous theoretical constraint on constant negative EoS parameter [Formula: see text] and its effect for the late Universe.

Authors:  Alvina Burgazli; Maxim Eingorn; Alexander Zhuk
Journal:  Eur Phys J C Part Fields       Date:  2015-03-12       Impact factor: 4.590
  3 in total

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