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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

(DCMMP) W2-7 Condensed matter theory II | Théorie de la matière condensée II (DPMCM)

W2-7
21 Jun 2023, 13:45
University of New Brunswick

University of New Brunswick

Conveners

(DCMMP) W2-7 Condensed matter theory II | Théorie de la matière condensée II (DPMCM)

  • Rachel Wortis

Presentation materials

There are no materials yet.

  1. 3901. (I) Sparse-rank factorization methods in quantum physics
    Thomas Baker (Department of Physics & Astronomy and also of Chemistry, University of Victoria)
    21/06/2023, 13:45
    Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
    Invited Speaker / Conférencier(ère) invité(e)

    Lanczos-based algorithms have been demonstrated to play a pivotal role in quantum computing and classical methods. I review the development of these methods for a variety of physical systems and new implementations. I also review new use cases of these algorithms.

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  2. 3668. (G*) Many-Body Dispersion in Model Systems and the Sensitivity of Self-Consistent Screening
    Mr Kyle Bryenton (Dalhousie University)
    21/06/2023, 14:15
    Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
    Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle)

    London dispersion is a weak, attractive, intermolecular force that occurs due to interactions between instantaneous dipole moments. While individual dispersion contributions are small, they are the dominating attractive force between non-polar species and determine many properties of interest. Standard methods in density-functional theory do not account for dispersion contributions, so a...

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  3. 3877. WITHDRAWN (U*) Sonic Event Horizon in a Bose-Einstein Condensate
    David Tyler (McMaster University)
    21/06/2023, 14:30
    Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
    Oral Competition (Undergraduate Student) / Compétition orale (Étudiant(e) du 1er cycle)

    We consider a one-dimensional flowing Bose-Einstein condensate (BEC). We numerically model the mean-field wave function of this system, and compare our results to an analytical solution derived using the hydrodynamic approximation. We find that a sonic event horizon forms in the BEC, where in one region the flow of the condensate exceeds the speed of sound in the BEC, while across a boundary...

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  4. 3665. Quantum many-body scars: Connections to classical stability and instability
    Dr Meenu Kumari (Perimeter Institute)
    21/06/2023, 14:45
    Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)
    Oral (Non-Student) / Orale (non-étudiant(e))

    The discovery of non-thermal behaviour in a thermalizing quantum many-body system [Nature 551, 579-584 (2017)] led to the introduction of quantum many-body scars (QMBS). They are atypical eigenstates of chaotic systems and generally exhibit sub-volume or area law entanglement as opposed to the volume law present in the bulk of the eigenstates. The term, QMBS, was given using heuristic...

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