Symmetry in Inflationary Cosmology
A special issue of Symmetry (ISSN 2073-8994). This special issue belongs to the section "Physics".
Deadline for manuscript submissions: closed (15 June 2023) | Viewed by 1004
Special Issue Editors
Interests: cosmic inflation; gravitational theory
Special Issue Information
Dear Colleagues,
Inflation is a graceful solution to the monopole, horizon, and flatness problems in the standard Big Bang cosmology. The quantum fluctuations of the inflaton can provide the initial condition for the formation of the large-scale structure of our Universe, and these fluctuations—imprinted on the cosmic microwave background radiation—can be also used to test the inflationary scenario. Symmetries play an important role in the inflationary models. The nearly De Sitter symmetry of the spacetime at the inflation epoch guarantees the power spectrum to be nearly scale-invariant; the superconformal symmetry of the action gives the T/E models, which have good consistency with the observational data; the general attractor symmetry in the scalar–tensor theory imposes a challenge to distinguish different inflationary models; the dual symmetry between slow-roll and ultra-slow-roll inflationary models shows the inner connection between the slow-roll condition and ultra-slow-roll condition.
Thus, in the Special Issue “Symmetry in Inflationary Cosmology”, we would like to focus on the topics about the slow-roll inflation, ultra-slow roll inflation, constant-roll inflation, the attractor phenomenon, and other symmetries in the inflationary models.
Dr. Zhu Yi
Dr. Qing Gao
Guest Editors
Manuscript Submission Information
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Keywords
- symmetry
- inflation
- ultra-slow-roll inflation
- constant-roll inflation
- inflationary attractors
