Speaker
David Kaplan
(Inst. of Nuclear Theory, Seattle)
Description
Understanding the properties of few to many strongly interacting fermions in a finite volume is of interest in many areas of physics, and is computationally challenging. One of the simplest non-trivial systems to look at are "unitary fermions": non- relativistic fermions with short range interactions and infinite scattering length. This is a conformal theory which can be studied experimentally with trapped atoms; it may also serve as a starting point for numerical nuclear physics, given how large are nucleon scattering lengths. In addition the system provides a good testing ground for confronting various computational challenges in finite density simulations. I discuss recent work with Endres, Nicholson and Lee where to date we have simulated up to 20 fermions on a 64^3 x 80 lattice, and 38 fermions on 16^3 x 36.
