AMO/QO SEMINAR SERIES
"Extreme fine tuning of the cosmological constant is not needed"
Dr. Qingdi Wang
University of British Columbia
We show that when the bare cosmological constant in the Einstein field
equations takes large negative values, the average distance between
any two nearby geodesics moving in the spacetime sourced by quantum
fields vacuum would gradually increase at a slow accelerating rate due
to the weak parametric resonance effect caused by the fluctuations of
the quantum vacuum energy density. In this scenario, the extreme fine
tuning of the cosmological constant is not needed. This resolves the
cosmological constant problem and provides an explanation to the
accelerating expansion of the universe.
Friday, December 7, 2018
IQSE Seminar Room, 12:00 Noon
Institute for Quantum Science and Engineering
Texas A&M University
Sandwich lunch to be served at 11:30 a.m.
Host: Dr. William Unruh
THE INSTITUTE FOR QUANTUM
SCIENCE AND ENGINEERING