Strongly correlated systems in few-body land

Seminar
Speaker
Prof. Chris H. Greene, Department of Physics, Purdue University, IN, USA
Date
03/03/2014 - 12:30Add to Calendar 2014-03-03 12:30:00 2014-03-03 12:30:00 Strongly correlated systems in few-body land This colloquium will discuss some of the nonperturbative physics that occurs when a few particles interact strongly, stressing low-energy phenomena where one needs to go beyond perturbation theory. Some of the problems of recent interest include the recombination of 3 or 4 or even 5 ultracold atoms to form molecules, a key process that tends to eject atoms and cause losses from a Bose-Einstein condensate. Resonances in this system are connected with the intriguing Efimov effect.  Another recent interest has been the field of artificial gauge potentials in cold atom physics, where an appropriate laser dressing of neutral atoms causes them to behave as though they were charged particles in a magnetic field or even with artificial spin-orbit coupling.  I will discuss recent developments that allow the theory to treat such systems quantitatively and also enable qualitative intuition to be developed, in the context of recent experiments. Room 301, Physics Bld. 202 Department of Physics physics.dept@mail.biu.ac.il Asia/Jerusalem public
Place
Room 301, Physics Bld. 202
Abstract

This colloquium will discuss some of the nonperturbative
physics that occurs when a few particles interact strongly, stressing
low-energy phenomena where one needs to go beyond perturbation theory.
Some of the problems of recent interest include the recombination of 3
or 4 or even 5 ultracold atoms to form molecules, a key process that
tends to eject atoms and cause losses from a Bose-Einstein condensate.
Resonances in this system are connected with the intriguing Efimov
effect.  Another recent interest has been the field of artificial gauge
potentials in cold atom physics, where an appropriate laser dressing of
neutral atoms causes them to behave as though they were charged
particles in a magnetic field or even with artificial spin-orbit
coupling.  I will discuss recent developments that allow the theory to
treat such systems quantitatively and also enable qualitative intuition
to be developed, in the context of recent experiments.

Last Updated Date : 30/01/2014