Universal dynamics in quantum quenches with ultracold atom
Seminar
Speaker
Emanuele Dalla Torre (Dept. of Physics, Harvard)
Date
07/03/2013 - 15:30 - 14:15Add to Calendar
2013-03-07 14:15:00
2013-03-07 15:30:00
Universal dynamics in quantum quenches with ultracold atom
Which tools can we count-on to study the dynamics of interacting quantum systems following a quantum quench? I will open my talk with a (biased) review on recent experiments with ultracold atoms. I will than move to the theoretical efforts to explain them, focusing on the concepts of quantum criticality and universality. Finally, I will present our recent predictions for a quantum quench in which two independent condensates are suddenly coupled. Combining numerics, semi-classics, and field-theories, we find that appropriately rescaled physical observables follow a universal time-evolution. Using this method, we can hope to describe the dynamics of many-body quantum systems without knowing their microscopic details.
REFERENCE: arxiv:1211.5145 (PRL, in press)
Resnick (bld 209), seminar room 201
Department of Physics
physics.dept@mail.biu.ac.il
Asia/Jerusalem
public
Place
Resnick (bld 209), seminar room 201
Abstract
Which tools can we count-on to study the dynamics of interacting quantum systems following a quantum quench? I will open my talk with a (biased) review on recent experiments with ultracold atoms. I will than move to the theoretical efforts to explain them, focusing on the concepts of quantum criticality and universality. Finally, I will present our recent predictions for a quantum quench in which two independent condensates are suddenly coupled. Combining numerics, semi-classics, and field-theories, we find that appropriately rescaled physical observables follow a universal time-evolution. Using this method, we can hope to describe the dynamics of many-body quantum systems without knowing their microscopic details.
REFERENCE: arxiv:1211.5145 (PRL, in press)
Last Updated Date : 27/02/2013
