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2019 CAP Congress / Congrès de l'ACP 2019

2–7 Jun 2019
Simon Fraser University
America/Vancouver timezone
Welcome to the 2019 CAP Congress Program website! / Bienvenue au siteweb du programme du Congrès de l'ACP 2019 !

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Session

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

W2-4
5 Jun 2019, 13:15
Simon Fraser University

Simon Fraser University

Conveners

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

  • Jamie Sully

Presentation materials

There are no materials yet.

  1. 2595. Entanglement entropy on the noncommutative sphere
    Joanna Karczmarek (UBC)
    05/06/2019, 13:15
    Theoretical Physics / Physique théorique (DTP-DPT)
    Invited Speaker / Conférencier(ère) invité(e)

    Entanglement entropy in a Quantum Field Theory is an interesting geometric observable which provides information on how degrees of freedom at different points are coupled. Thus, entanglement entropy can be used as a tool for probing the non-locality structure of theories on fuzzy spaces. I will describe how geometric entanglement entropy can be studied in a scalar field theory on a fuzzy...

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  2. 2840. Entanglement and the Infrared
    Gordon Semenoff (University of British Columbia)
    05/06/2019, 13:45
    Theoretical Physics / Physique théorique (DTP-DPT)
    Invited Speaker / Conférencier(ère) invité(e)

    There are two known apparently massless fields in nature, the photon and the graviton. Interestingly, their massless nature in each case leads to similar infrared catastrophes for quantum electrodynamics and perturbative quantum gravity. In this talk, I will review some quantum information theoretic issues stemming from the copious production of soft photons and soft gravitons in elementary...

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  3. 2566. Computing Conformal Blocks through Geodesic Witten Diagrams
    Mr Jonathan Classen-Howes (McGill University)
    05/06/2019, 14:15
    Theoretical Physics / Physique théorique (DTP-DPT)
    Oral Competition (Undergraduate Student) / Compétition orale (Étudiant(e) du 1er cycle)

    Conformal blocks are used to study the correlation functions of conformal field theories; quantum field theories which are invariant under conformal transformations. A consideration affecting the use of conformal blocks is that they can be difficult to compute efficiently. The anti-de Sitter/conformal field theory correspondence, a conjectured duality with wide applications in theoretical...

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  4. 2864. Detecting Lorentz invariance violations with a quantum cavity
    Sanjeev Seahra
    05/06/2019, 14:30
    Theoretical Physics / Physique théorique (DTP-DPT)
    Oral (Non-Student) / Orale (non-étudiant(e))

    We study a scalar field in a 1D quantum cavity governed by a non-Lorentz invariant action. We demonstrate that the energy levels depend on the velocity of the cavity's walls with respect to a preferred frame, which is a stark violation of the principle of relativity.

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  5. 2512. New Gravitational Probes of Dark Matter
    Dr Evan McDonough (Brown University)
    Theoretical Physics / Physique théorique (DTP-DPT)
    Oral (Non-Student) / Orale (non-étudiant(e))

    Despite decades of searching, the strongest evidence for dark matter remains gravitational. It is thus worthwhile to consider the extent to which gravitational probes can discriminate between models of cold dark matter. With this in mind, in this talk I will discuss the early universe origins and late universe observables of "superfluid" dark matter. Despite having only gravitational couplings...

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