Beyond : Problems, solutions, and the road ahead
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- 作者：Philip Bull1 ; 2 ; 3 ; Philip.J.Bull@jpl.nasa.gov" class="auth_mail" title="E-mail the corresponding author ; Yashar Akrami4 ; 3 ; Yashar.Akrami@thphys.uni-heidelberg.de" class="auth_mail" title="E-mail the corresponding author ; Julian Adamek5 ; Tessa Baker6 ; Emilio Bellini7 ; Jose Beltrá ; n Jimé ; nez8 ; Eloisa Bentivegna9 ; 10 ; Stefano Camera11 ; Sé ; bastien Clesse12 ; Jonathan H. Davis13 ; Enea Di Dio14 ; 15 ; Jonas Enander16 ; 17 ; Alan Heavens18 ; Lavinia Heisenberg19 ; Bin Hu20 ; Claudio Llinares21 ; 3 ; Roy Maartens22 ; 23 ; Edvard Mö ; rtsell16 ; 17 ; Seshadri Nadathur23 ; Johannes Noller6 ; Roman Pasechnik24 ; Marcel S. Pawlowski25 ; Thiago S. Pereira26 ; Miguel Quartin27 ; Angelo Ricciardone28 ; Signe Riemer-Sø ; rensen3 ; Massimiliano Rinaldi29 ; 30 ; Jeremy Sakstein23 ; Ippocratis D. Saltas31 ; Vincenzo Salzano32 ; Ignacy Sawicki5 ; Adam R. Solomon33 ; 4 ; 34 ; Douglas Spolyar16 ; 17 ; Glenn D. Starkman35 ; Daniè ; le Steer36 ; Ismael Tereno37 ; 38 ; Licia Verde39 ; 7 ; 40 ; 3 ; Francisco Villaescusa-Navarro14 ; 15 ; Mikael von Strauss41 ; Hans A. Winther6
- 关键词：Cosmology ; Dark energy ; Cosmological constant problem ; Modified gravity ; Dark matter ; Early universe
- 刊名：Physics of the Dark Universe
- 出版年：2016
- 出版时间：June 2016
- 年：2016
- 卷：12
- 期：Complete
- 页码：56-99
- 全文大小：3297 K
文摘
Despite its continued observational successes, there is a persistent (and growing) interest in extending cosmology beyond the standard model, 
. This is motivated by a range of apparently serious theoretical issues, involving such questions as the cosmological constant problem, the particle nature of dark matter, the validity of general relativity on large scales, the existence of anomalies in the CMB and on small scales, and the predictivity and testability of the inflationary paradigm. In this paper, we summarize the current status of as a physical theory, and review investigations into possible alternatives along a number of different lines, with a particular focus on highlighting the most promising directions. While the fundamental problems are proving reluctant to yield, the study of alternative cosmologies has led to considerable progress, with much more to come if hopes about forthcoming high-precision observations and new theoretical ideas are fulfilled.
. This is motivated by a range of apparently serious theoretical issues, involving such questions as the cosmological constant problem, the particle nature of dark matter, the validity of general relativity on large scales, the existence of anomalies in the CMB and on small scales, and the predictivity and testability of the inflationary paradigm. In this paper, we summarize the current status of as a physical theory, and review investigations into possible alternatives along a number of different lines, with a particular focus on highlighting the most promising directions. While the fundamental problems are proving reluctant to yield, the study of alternative cosmologies has led to considerable progress, with much more to come if hopes about forthcoming high-precision observations and new theoretical ideas are fulfilled.