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2022 CAP Congress / Congrès de l'ACP 2022

5–11 Jun 2022
McMaster University
America/Toronto timezone
Welcome to the 2022 CAP Congress Program website! / Bienvenue au siteweb du programme du Congrès de l'ACP 2022!

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Session

W2-2 Fields, Particles, and Strings II (DTP) | Champs, particules et cordes II (DPT)

W2-2
8 Jun 2022, 13:15
McMaster University

McMaster University

Conveners

W2-2 Fields, Particles, and Strings II (DTP) | Champs, particules et cordes II (DPT)

  • Arundhati Dasgupta

Presentation materials

There are no materials yet.

  1. 3327. (I) Quantum finite elements
    Sanjeev Seahra
    08/06/2022, 13:15
    Theoretical Physics / Physique théorique (DTP-DPT)
    Invited Speaker / Conférencier(ère) invité(e)

    The finite element method is a well-known technique to approximate solutions of partial differential equations on complex geometries. In this talk, I consider the quantization of the classical finite element method as applied to a scalar field propagating on a closed spatial manifold equipped with a random triangulation. This is intended to be a toy model of quantized matter inhabiting the...

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  2. 3432. (G*) One problem in a ‘melon’ (milion)
    Mathieu Giroux (McGill University)
    08/06/2022, 13:45
    Theoretical Physics / Physique théorique (DTP-DPT)
    Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle)

    It was recently showed that the dual to the vector space of Feynman
    integrals have a very physical interpretation through unitary cuts. In
    this talk, we want to use this new technology to answer questions at
    two-loop. In particular, we initiate the loop-by-loop program and
    investigate the recursive loop-structure of the ‘watermelon’
    diagram, which is relevant for self-energy calculations...

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  3. 3383. (G*) The complex symmetron: global strings in non-minimally coupled scalar-tensor theories
    Ali Nezhadsafavi
    08/06/2022, 14:00
    Theoretical Physics / Physique théorique (DTP-DPT)
    Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle)

    Topological defects, such as monopoles, cosmic strings and domain walls, have been extensively studied in theories with fields minimally coupled to gravity. With the surging interest in alternative gravity theories, it is interesting to investigate the novel characteristics of defects in theories with non-minimally coupled strings. Previous works in this filed have already yielded interesting...

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  4. 3401. (G*) Interaction of Gravitational waves with Yang-Mills waves
    Narasimha Gosala (University of Lethbridge)
    08/06/2022, 14:15
    Theoretical Physics / Physique théorique (DTP-DPT)
    Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle)

    Gravitational waves (GWs) provide a new window to observe the universe. Detecting GWs requires an understanding of the interaction of GWs with the matter. In this view, we discuss the interaction of gravitational waves with SU(2) Yang-Mills waves. In particular, we discuss how a Yang-Mills wave gets modified in the background of a gravitational wave. We also discuss some of the implications of...

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  5. 3306. (G*) Sorkin-Johnston Effective Field Theory
    Mr Shafayat Shawqi (University of Alberta)
    08/06/2022, 14:30
    Theoretical Physics / Physique théorique (DTP-DPT)
    Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle)

    Quantum Effective Field Theory (EFT) in curved spacetime is our most advanced and established framework on the path towards a quantum theory of gravity. However, unlike its flat space counterpart, the theory lacks a unique notion of vacuum or energy, which complicates decoupling from ultraviolet (UV) degrees of freedom. Here, we present an EFT quantization procedure based on the...

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