Abstract
A cosmological constant fits all current dark energy data, but requirestwo extreme fine tunings, both of which are currently explained by anthropic arguments. Here we discuss anti-anthropic solutions to one of these problems:the cosmic coincidence problem- that today the dark energy density is nearly equal tothe matter density. We replace the ensemble of Universes used inthe anthropic solution with an ensemble of tracking scalar fields thatdo not require fine-tuning. This not only does away with the coincidence problem, but also allows for a Universe that has a very different future than the one currently predicted by a cosmological constant. These models also allow for transient periodsof significant scalar field energy (SSFE) over the history of the Universethat can give very different observational signatures as comparedwith a cosmological constant, and so can be confirmed or disprovedin current and upcoming experiments.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
