COVID-19 information for PI Residents and Visitors
One of the biggest mysteries in cosmology and fundamental physics is the nature of dark energy that is responsible for the current acceleration of cosmic expansion. While a cosmological constant provides the simplest model of dark energy, recent observational tensions amongst supernovae Ia, gravitational lensing time delays, and cosmic microwave background suggest the need for a more complex dynamical dark energy. One of the oldest proposals for a dynamical dark energy is “Everpresent Lambda” proposed by Sorkin, which is inspired by the causal set model of quantum gravity. It was recently shown that this model can potentially resolve the tensions in cosmological observations. The meeting aims to bring together a small number of experts in quantum gravity, causal sets, and cosmology, to carefully examine the model’s theoretical predictions and its observational tests, and pave the way for what might be an(other) exciting insight from cosmology into the fundamental nature of spacetime.
- David Kubiznak, Perimeter Institute
- Jian Li, Simon Fraser University
- Levon Pogosian, Simon Fraser University
- Sumati Surya, Raman Research Institute
- Yasaman Yazdi, Imperial College London
- Nosiphiwo Zwane, University of Eswatini - via teleconference
- Alan Coley, Dalhousie University
- David Kubizinak, Perimeter Institute
Monday, November 11, 2019
Time |
Event |
Location |
10:15 – 10:30am |
Registration |
Reception |
10:30 – 11:00am |
Coffee Break |
Bistro – 1st Floor |
11:00 – 12:00pm |
Sumati Surya, Raman Research Institute |
Space Room |
12:00 – 2:00pm |
Lunch |
Bistro – 1st Floor |
2:00 – 3:00pm |
Rafael Sorkin, Perimeter Institute |
Space Room |
3:00 – 3:30pm |
Coffee Break |
Bistro – 1st Floor |
3:30 – 4:30pm |
Niayesh Afshordi, Perimeter Institute & University of Waterloo |
Space Room |
Tuesday, November 12, 2019
Time |
Event |
Location |
10:30 – 11:00am |
Coffee Break |
Bistro – 1st Floor |
11:00 – 12:00pm |
Yasaman Yazdi, Imperial College London |
Space Room |
12:00 – 2:00pm |
Lunch |
Bistro – 1st Floor |
2:00 – 3:00pm |
Jian Li, Simon Fraser University |
Space Room |
3:00 – 3:30pm |
Coffee Break |
Bistro – 1st Floor |
3:30 – 4:30pm |
Rafael Sorkin, Perimeter Institute |
Space Room |
Wednesday, November 13, 2019
Time |
Event |
Location |
10:30 – 11:00am |
Coffee Break |
Bistro – 1st Floor |
11:00 – 12:00pm |
Nosiphiwo Zwane, University of Eswatini |
Space Room |
12:00 – 1:30pm |
Lunch |
Bistro – 1st Floor |
1:30 – 2:30pm |
Levon Pogosian, Simon Fraser University |
Space Room |
2:30 – 2:40pm |
Coffee Break |
Bistro – 1st Floor |
2:40 – 3:30pm |
Discussion |
Space Room |
Thursday, November 14, 2019
Time |
Event |
Location |
10:30 – 11:00am |
Coffee Break |
Bistro – 1st Floor |
11:00 – 12:00pm |
Nosiphiwo Zwane, University of Eswatini |
Space Room |
12:00 – 2:00pm |
Lunch |
Bistro – 1st Floor |
2:00 – 3:00pm |
Discussion |
Space Room |
3:00 – 3:30pm |
Coffee Break |
Bistro – 1st Floor |
3:30 – 4:30pm |
David Kubiznak, Perimeter Institute |
Space Room |
5:00 – 8:00pm |
Pub Night |
Bistro – 1st Floor |
Friday, November 15, 2019
Time |
Event |
Location |
10:30 – 11:00am |
Coffee Break |
Bistro – 1st Floor |
11:00 – 12:00pm |
Niayesh Afshordi, Perimeter Institute & University of Waterloo |
Space Room |
12:00 – 2:00pm |
Lunch |
Bistro – 1st Floor |
2:00 – 3:00pm |
Discussion |
Space Room |
3:00 – 3:30pm |
Coffee Break |
Bistro – 1st Floor |
3:30 – 4:30pm |
Niayesh Afshordi, Perimeter Institute & University of Waterloo |
Space Room |
Observational constraints on modified gravity and dark energy
Causal Set Action/Entropy
Status of Hubble tension in Cosmology
Introduction to Everpresent Lambda
Introduction Causal Sets
Pages
Scientific Organizers:
- Niayesh Afshordi, Perimeter Institute & University of Waterloo
- Rafael Sorkin, Perimeter Institute