
High Energy Physics Seminars 200708
held at the Fields Institute
Overview
Highenergy physics (HEP) at the University of Toronto is
a comprehensive program involving experimentalists and theorists.
Theoretical HEP seminar topics include string theory, early
universe cosmology, physics beyond the standard model, and
particle phenomenology, while experimental HEP seminar topics
include both particle and astrophysics experiment. Experimentalists
also hold weekly collaboration meetings, while theorists also
hold a weekly internal journal club.
Organizer: Erich Poppitz
String theory: Mondays at 12:10 Fields Institute Library
For dates see below

Date 
Speaker

Mar. 10/08
12:10 p.m. 
Michael
Schulz, University of Pennsylvania
String Junctions, Abelian Fibrations and Flux/Geometry Duality.

Jan 28/08
12:10 p.m.
Fields Institute,
Room 230

YangHui He, Merton
College, Oxford
Triadophilia: a special corner of the landscape
It is well known that there are a great many apparently consistent
vacua of string theory. We draw attention to the fact that there
appear to be very few CalabiYau manifolds with the Hodge numbers
h^{11} and h^{21} both small. Of these, the case (h^{11}, h^{21})=(3,3)
corresponds to a manifold on which a three generation heterotic
model has recently been constructed. We point out also that
there is a very close relation between this manifold and several
familiar manifolds including the `threegeneration' manifolds
with \chi=6 that were found by Tian and Yau, and by Schimmrigk,
during early investigations. It is an intriguing possibility
that we may live in a naturally defined corner of the landscape.
The location of these three generation models with respect to
a corner of the landscape is so striking that we are led to
consider the possibility of transitions between heterotic vacua.
The possibility of these transitions, that we here refer to
as transgressions, is an old idea that goes back to Witten.
Here we apply this idea to connect three generation vacua on
different CalabiYau manifolds. 
Jan 8/08
2:00 p.m. 
Josh Guffin (UrbanaChampaign)
Deformed Quantum Cohomology and (0,2) Mirror Symmetry

Nov. 26/07
12:10 p.m. 
Daniel Jafferis, Rutgers University
Fragmenting 4branes and qdeformed YangMills

Nov. 22/07
12:10 p.m.* 
Boris Pioline, Université
Paris VI et VII
"Quantum attractor flows and black hole partition functions"
*Note: Unusual Time 
Nov. 5/07
12:10 p.m. 
Thomas Levi, New York University
"Black Hole Microstates:From Dbranes to Foam" 

