Video Library

Since 2002 Perimeter Institute has been recording seminars, conference talks, and public outreach events using video cameras installed in our lecture theatres. Perimeter now has 7 formal presentation spaces for its many scientific conferences, seminars, workshops and educational outreach activities, all with advanced audio-visual technical capabilities. Recordings of events in these areas are all available On-Demand from this Video Library and on Perimeter Institute Recorded Seminar Archive (PIRSA).

PIRSA is a permanent, free, searchable, and citable archive of recorded seminars from relevant bodies in physics. This resource has been partially modelled after Cornell University's arXiv.org.

: The Weird World of Quantum Physics - Part 6
Wednesday Jul 26, 2006
Speaker(s):
Damian Pope
(Flash Presentation, MP3, Windows Presentation,Windows Video File,PDF)
Collection/Series:
ISSYP 2006

: The Weird World of Quantum Physics - Part 5
Wednesday Jul 26, 2006
Speaker(s):
Damian Pope
(Flash Presentation, MP3, Windows Presentation,Windows Video File,PDF)
Collection/Series:
ISSYP 2006

: The Weird World of Quantum Physics - Part 4
Wednesday Jul 26, 2006
Speaker(s):
Damian Pope
(Flash Presentation, MP3, Windows Presentation,Windows Video File,PDF)
Collection/Series:
ISSYP 2006

: Keynote Presentation - Harnessing the Quantum World
Wednesday Jul 26, 2006
Speaker(s):
Raymond Laflamme
(Flash Presentation, MP3, Windows Presentation,Windows Video File,PDF)
Collection/Series:
ISSYP 2006

: The Weird World of Quantum Physics - Part 3
Tuesday Jul 25, 2006
Speaker(s):
Damian Pope
(Flash Presentation, MP3, Windows Presentation,Windows Video File,PDF)
Collection/Series:
ISSYP 2006

: On Quantum Gravity and the Dark Energy Problem
Tuesday Jul 25, 2006
Speaker(s):
Stephon Alexander
(Windows Presentation,Windows Video File,PDF)

After reviewing the cosmological constant/dark energy problem(s), I will present a dynamical mechanism wheiren a gap forms turning the unstable perturbative gravitational vacuum into a non-perturbative vacuum. Similar to the BCS theory this mechanism reflects the formation of Cooper-pairs which can cancel the would be large cosmological constant. Furthermore, when this mechanism is forumlated in the Ashtekar-Sen variables the cosmological constant problem bears close semblance to the strong CP problem in QCD. Open issues with this approach will also be addresssed.

Collection/Series:
Strings Group Meeting

Scientific Areas:

Quantum Gravity,

Cosmology