"Supercooling of atoms based on steady-state superradiance," by Murray Holland (University of Colorado)

Thursday, June 30, 2016 - 2:30pm to 3:30pm
AMO Seminars

AMO Seminar
Physics & Astronomy Building (PAB) Room 4-330
Thursday, June 30, 2016

Guest Speaker: Murray Holland (University of Colorado)

Talk Title: "Supercooling of atoms based on steady-state superradiance"


The development of laser cooling methods in the 1980's revolutionized atomic physics and became an essential technology in many fields, including quantum gas physics, precision measurements and quantum information. Laser cooling is based on various schemes that involve the interaction of single atoms with multiple light fields. In this talk, I will present a new theoretical proposal for "supercooling" of atoms in an optical cavity, which is a novel example of many-body laser cooling. I will show that the motion of the atoms is subject to a giant frictional force that derives from the growth of many-atom dipole correlations in steady-state superradiance. This effect leads to a final temperature that can be orders of magnitude lower than the conventional limit for laser cooling of atoms in an optical cavity. The superradiant effects lead to a rapid cooling rate that is greatly enhanced by collective emission into the cavity mode. If successfully observed in experiment, this prediction could have important application in the next generation of atomic clocks and in ultrastable lasers.

PAB 4-330