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2023 CAP Congress / Congrès de l'ACP 2023

18–23 Jun 2023
University of New Brunswick
America/Halifax timezone
Welcome to the 2023 CAP Congress Program website! / Bienvenue au siteweb du programme du Congrès de l'ACP 2023!

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Session

(DTP) M2-2 Gravity and Cosmology and Astrophysics | Gravité, cosmologie et astrophysique (DPT)

M2-2
19 Jun 2023, 14:00
University of New Brunswick

University of New Brunswick

Conveners

(DTP) M2-2 Gravity and Cosmology and Astrophysics | Gravité, cosmologie et astrophysique (DPT)

  • Mark Walton (University of Lethbridge)

Presentation materials

There are no materials yet.

  1. 3746. (I) Quantum black holes: fundamentals and phenomenological aspects
    Saeed Rastgoo (University of Alberta)
    19/06/2023, 14:00
    Theoretical Physics / Physique théorique (DTP-DPT)
    Invited Speaker / Conférencier(ère) invité(e)

    Quantum black holes are one of the main playgrounds of any theory of quantum gravity. Describing such objects is a principal goal of these theories. I will review the fundamentals of analyzing black holes in non-perturbative canonical quantum gravity and briefly present some of the models arising from this approach. I will also present a short overview of some of the phenomenological aspects...

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  2. 3730. (G*) Discretized Spherical Symmetry via LQG
    Jorden Roberts
    19/06/2023, 14:30
    Theoretical Physics / Physique théorique (DTP-DPT)
    Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle)

    Following the techniques of canonical loop quantum gravity, a full Thiemann regularization is performed on the scalar constraint of classical general relativity. The regularized Hamiltonian is then considered for a general spherically-symmetric spacetime, without recourse to additional gauge-fixing conditions commonly imposed to aid in computing the radial holonomies. By investigating the form...

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  3. 3792. (G*) Hawking Corrections from Universal Planck Scale Physics
    Liam Farrell
    19/06/2023, 14:45
    Theoretical Physics / Physique théorique (DTP-DPT)
    Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle)

    Caustics are regions of high intensity created generically by the natural focusing of waves, and are universally described by catastrophe theory. Each distinct class of catastrophe is uniquely described by its own diffraction pattern, the simplest two being the Airy and Pearcey functions. A more exotic form of logarithmic wave singularity occurs near event horizons, which have acoustic...

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  4. 3869. (U*) Numerically Solving Fast-Oscillating Integrals
    Mr Naman Jain (McMaster University)
    19/06/2023, 15:00
    Theoretical Physics / Physique théorique (DTP-DPT)
    Oral Competition (Undergraduate Student) / Compétition orale (Étudiant(e) du 1er cycle)

    We use a novel approach to numerically calculate Fast-Oscillating Integrals (FOI) using the Picard-Lefschetz theory. In this theory, analytic oscillatory integrals are converted into sums of convex integrals by deforming the integration domain in the complex plane. Feldbrugge, Pen, and Turok 2019 introduced a new numerical integrator to evaluate the interference effects near caustics in lenses...

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