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Tuesday, 31 October 2023, 14:00 in P8445B
Prof. Shinji Mukohyama (YITP, Kyoto)
Dynamical approach to the cosmological constant revisited
The cosmological constant (cc) problem is one of the most difficult problems in theoretical physics and cosmology. The observational upper bound on the cc is smaller than what is naively expected quantum mechanically by 120 orders of magnitude. At present there is no theory that can convincingly explain this small value. In this talk I present a cosmological model of an early-time scenario that incorporates a relaxation process of the would-be large vacuum energy, followed by a reheating era connecting to the standard hot big bang universe.
Zoom: Zoom
Upcoming Seminars:
2023-11-07 14:00 in P8445B - Marcin Sawicki (Saint Mary’s): JWST’s distant universe as seen by CANUCS
Past Seminars:
2023-10-31 14:00 in P8445B - Shinji Mukohyama (YITP, Kyoto): Dynamical approach to the cosmological constant revisited 2023-09-14 13:00 in P8445B - Prajval Shastri (Indian Institute of Astrophysics): Different angles on accreting supermassive black holes
[ See complete seminar archives | iCal feed ]
Modified by Andrei Frolov <frolov@sfu.ca> on 2023-11-01