2026 CAP Congress / Congrès de l'ACP 2026

Session

(DTP) T2-10 | (DPT)

T2-10

23 Jun 2026, 14:15

U. Ottawa - Learning Crossroads (CRX) Building

971. The Large Magellanic Cloud and dark matter searches

Nassim Bozorgnia

23/06/2026, 14:15

Theoretical Physics / Physique théorique (DTP-DPT)

Invited Speaker / Conférencier(ère) invité(e)

The Large Magellanic Cloud (LMC) can significantly impact the dark matter halo of the Milky Way, and boost the dark matter velocity distribution in the Solar neighborhood. Cosmological simulations that sample potential Milky Way formation histories are powerful tools, which can be used to characterize the signatures of the LMC’s interaction with the Milky Way, and can provide crucial insight...

638. Jeans Model for the Shapes of Self-Interacting Dark Matter Halos

Adam Smith-Orlik (York University)

23/06/2026, 14:45

Theoretical Physics / Physique théorique (DTP-DPT)

Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle)

The Jeans model for self-interacting dark matter (SIDM) halos has been shown in recent literature to reproduce, with surprising accuracy, the spherically averaged halo profiles inferred from observations and simulations of relaxed galaxies and galaxy clusters. However, in general, dark matter halos are not spherically symmetric, owing to asymmetric baryon distributions and residual triaxiality...

956. Stochastic dark matter

Dr Arad Nasiri (University of New Brunswick)

23/06/2026, 15:00

Theoretical Physics / Physique théorique (DTP-DPT)

Oral (Non-Student) / Orale (non-étudiant(e))

Motivated by discrete approaches to quantum gravity, we formulate the covariant Brownian motion of free particles described by a stochastic geodesic equation. At the level of the Fokker-Planck equation, this approach provides the unique covariant diffusion equation in the absence of a preferred frame. The uniqueness makes the equation the effective description of a wide range of possible...

867. Visualizing the Principle of Least Action

Ciaran McDonald-Jensen (Carleton University)

23/06/2026, 15:15

Theoretical Physics / Physique théorique (DTP-DPT)

Oral Competition (Undergraduate Student) / Compétition orale (Étudiant(e) du 1er cycle)

The Principle of Least Action is a guiding concept in fundamental physics with prominent appearances in many fields, including classical mechanics, general relativity, and quantum mechanics. The general principle is that physically realizable paths are those that extremize the ‘action’ relative to nearby paths. This work explores example systems that highlight important characteristics of the...

657. Wormholes

Mengqi Lu (University of Waterloo)

23/06/2026, 15:30

Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle)

Wormhole solutions in gravitational theories typically require exotic matter. Here we present a wormhole solution to the field equations of Einsteinian Cubic Gravity — a phenomenological competitor to general relativity that includes terms cubic in the curvature — that has no matter, exotic or otherwise. These purely gravitational wormhole geometries are asymptotically AdS but contain a...