• Sep 18 2013

    Internship student David Métivier from ENS, Lyon spends 3 months at NITheP, Stellenbosch


    David, busy with his first year of Masters degree, specializing in fundamental physics, is currently registered at ENS, (École Normale Supérieure de Lyon), Lyon, France.

    David worked under the leadership of Prof Michael Kastner on an internship project with the following
    focus:

    A result by E.H. Lieb and D.W. Robinson shows that, even in nonrelativistic lattice spin systems, a perturbation cannot spread faster than at finite velocity. They found a bound with a light cone shape, mimicking that of special relativity. This kind of result has been shown for several quantum models, for finite as well as long-range interactions. In the classical case, only a particular model with nearest-neighbor interactions had been considered so far.

    The aim of his internship was to find a Lieb-Robinson bound for the classical long-range interacting spin systems. The result found was then compared to numerical simulations done by Romain Bachelard (Instituto de Fisica de Sao Carlos, Universidade de Sao Paulo, Brazil) and showed great qualitative agreements.

    David was at NITheP, Stellenbosch Node from the 6th of May 2013 until 30 July 2013.

    David made the internship possible by sponsoring his own costs with the help the ENS in terms of housing and food and Prof Kastner took care of transport.

    It certainly was a very beneficial time spent, and the work done during this project will lead to a publication, which will be updated on this page when it becomes available.