2017 CAP Congress / Congrès de l'ACP 2017

Session

W2-4 Fields and Strings (DTP) | Champs et cordes (DPT)

W2-4

31 May 2017, 11:30

Botterell B143 (Queen's University)

Conveners

W2-4 Fields and Strings (DTP) | Champs et cordes (DPT)

• Svetlana Barkanova (Acadia University)

1853. Out of equilibrium dynamics of gauge theories from holography

Dr Alex Buchel (Western University and Perimeter Institute)

31/05/2017, 11:30

Theoretical Physics / Physique théorique (DTP-DPT)

Invited Speaker / Conférencier invité

I review applications of holographic framework to out of equilibrium dynamics in strong coupled gauge theories. Potential applications range from physics of heavy-ion collisions to properties of primordial quark-gluon plasma in early Universe.

1630. Non-perturbative calculations in scalar theories

Prof. Margaret Carrington (Brandon University)

31/05/2017, 12:00

Theoretical Physics / Physique théorique (DTP-DPT)

CLOSED - Oral (Non-Student) / orale (non-étudiant)

Non-perturbative techniques are needed to study strongly coupled systems.
One popular method is the 2 particle irreducible (2pi) effective theory.
For scalar theories, calculations at the 3 loop level show improved convergence, relative to perturbative results.
We present results in ${\varphi }^4$ theory at the 4 loop level which show that convergence breaks down at large coupling.
This...

1598. Modelling The Gravitational Collapse Of Scalar Fields In Anti-de Sitter Space

Mr Brad Cownden (University of Manitoba)

31/05/2017, 12:15

Theoretical Physics / Physique théorique (DTP-DPT)

CLOSED - Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)

For phases like quark-gluon plasmas, the strong-coupling nature of the system means that perturbative approximations are invalid, and therefore conventional solution methods break down. However, using a duality first established by string theory, we are able to relate strongly coupled quantum field theories to weakly coupled gravitational systems (in one higher dimension). The most common use...