Noboru Kawamoto
(Hokkaido University)
17/06/2010, 14:30
Theoretical developments
Species doublers of chiral fermions have been considered as unwanted particles. We propose a new formulation where the species doublers play a crucial role as supermultiplet partners of lattice supersymmetry. The basic ideas for the simplest model together with the general philosophy of the formulation and the connection with the link approach will be explicitly explained.
Alessandro D'adda
(INFN, Sezione di Torino and Dipartimento Fisica Teorica, Università di Torino)
17/06/2010, 14:50
Theoretical developments
By interpreting species doublers as members of the same
supermultiplet we describe the N=2 supersymmetric quantum
mechanichs (including interaction) on a lattice with both
supersymmetries exactly realized. Supersymmetric Ward identities
are satisfies and the continuum limit is smooth. Interaction is
non-local on the lattice, but locality is recovered in the
continuum limit.
Masazumi Honda
(SOKENDAI,KEK)
17/06/2010, 15:10
Theoretical developments
We perform Monte Carlo simulation of the plane-wave matrix model or the BMN matrix model, which has 16 supercharges. The model has many degenerate supersymmetric vacua, and by picking up a particular one, we can obtain 4d N = 4 super Yang-Mills theory on R*S^3 in the planar limit based on the idea of a novel large-N reduction. We study correlation functions of non-extremal operators, and find...
Issaku Kanamori
(INFN, Torino and Univ. of Turin)
17/06/2010, 15:30
Theoretical developments
I propose a method for measuring the Witten index using a lattice
simulation. The index is useful to discuss spontaneous breaking of
supersymmetry. As a test of the method, I also report some
numerical results for the supersymmetric quantum mechanics, for which the
index is known.
Hiroki Kawai
(University of Tokyo)
17/06/2010, 15:50
Theoretical developments
It is conjectured that the two-dimensional N=2 Wess-Zumino model with a quasi-homogeneous superpotential provides a Landau-Ginzburg description of the N=2 superconformal minimal models. For the simplest cubic superpotential W=¥lambda ¥Phi^3 /3, it is expected that the Wess-Zumino model describes A_{2} model and the chiral superfield ¥Phi shows the conformal weight (h,¥bar{h})=(1/6,1/6) at the...
