Northwestern Events Calendar


CFP Colloquium: Harold Metcalf: Careful Thinking About Laser Cooling in Polychromatic Light

When: Tuesday, January 18, 2022
2:00 PM - 3:00 PM Central

Audience: Faculty/Staff - Student - Post Docs/Docs - Graduate Students

Contact: Laura Nevins   (847) 467-6678

Group: Center for Fundamental Physics Colloquia

Category: Lectures & Meetings, Academic


Abstract: We usually discuss laser cooling in terms of a single frequency of light on two-level atoms.  The effect of the multi-level structure of real atoms has been studied rigorously for the past 20 years,  but there has been little consideration of polychromatic light.  Bichromatic light opens a whole new domain of thinking, including questions about the need for spontaneous emission, the role of the light field itself, energy conservation, unitarity considerations, entropy dissipation, and more.  The talk will start with an introduction to the basic ideas of laser cooling and then discuss the case for two colors.

Harold Metcalf, Distinguished Teaching Professor, Stony Brook University

Host: Gerald Gabrielse

This will be a virtual talk. Please contact Laura Nevins at for the Zoom link.

Keywords: CFP, Physics

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