1. High-Energy Physics & RIKEN Theory Seminar

    "Fisher's zeros in spin/gauge models and beyond the standard model"

    Presented by Yannick Meurice, University of Iowa

    Wednesday, April 10, 2013, 2 pm
    Small Seminar Room, Bldg. 510

    Hosted by: Alexei Bazavov

    Studying Lattice Gauge Theory models near conformality requires that we get rid of three scales: the size of the system, the lattice spacing and the fermion masses. These three extrapolations are very expensive for conventional Monte Carlo simulations. We discuss two Renormalization Group (RG) methods designed to handle this type of situations for spin and gauge lattice models. The first one is the construction of complex RG flows which are controlled by the zeros of the partition function in the complex beta plane (Fisher's zeros). The second is the Tensor RG method which we compare in efficiency and accuracy with conventional methods.