Hamilton Colloquium Series - Jun Ye, University of Colorado: "Ultracold Molecules - New Frontiers in Quantum and Chemical Physics"
Molecules cooled to ultralow temperatures provide fundamental new insights to molecular interaction dynamics in the quantum regime. In recent years, researchers from various scientific disciplines such as atomic, optical, condensed matter physics, physical chemistry, and quantum science have started working together to explore many emergent topics related to cold molecules, including cold chemistry, strongly correlated quantum systems, novel quantum phases, and precision measurement.
Complete control of molecular interactions by producing a molecular gas at very low entropy and near absolute zero has long been hindered by their complex energy level structure. Recently, a range of technical tools have been developed enabling the production of ultracold molecules, including a quantum gas of molecules. In this regime, molecular collisions follow full quantum descriptions. Chemical reaction is controlled via quantum statistics of the molecules, along with dipolar effects. Further, molecules can be confined in reduced spatial dimensions and their interactions are precisely manipulated via external electromagnetic fields. By encoding a spin-1/2 system in rotational states, we realize a spin lattice system where many-body spin dynamics are directly controlled by long-range and anisotropic dipolar interactions. These new capabilities promise further explorations of strongly interacting and collective quantum effects in exotic quantum matter.
Location: Jadwin A10
Date/Time: 02/20/14 at 4:30 pm - 02/20/14 at 6:00 pm
Category: Physics Colloquium