BEGIN:VCALENDAR
VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-4406
DTSTART:20170126T180000Z
DURATION:PT1H0M0S
DTSTAMP:20260419T043437Z
LAST-MODIFIED:20170123T194409Z
LOCATION:5280 Chamberlin Hall
SUMMARY:From fundamental physics to aspects of photosynthesis: Control
 ling and studying complex quantum systems\, Atomic Physics Seminar\, B
 oerge Hemmerling\, UC Berkeley
DESCRIPTION:The answer to many scientific questions ranging from funda
 mental physics to aspects of photosynthesis lie in the study of quantu
 m systems. A requirement for such studies is often to initialize the s
 ystems\, manipulate them and read them out. However\, many of the syst
 ems with interesting applications tend to have a complex level structu
 re rendering these requirements difficult to meet.<br>
\n<br>
\nIn thi
 s talk\, I will discuss experimental strategies to control complex ion
 s and molecules for which standard trapping\, cooling and state manipu
 lation methods fail. In particular\, I will discuss how complex ions\,
  such as Ti+ or Fe+\, can be studied and used to place limits on the t
 emporal variation of fundamental constants. Moreover\, I will present 
 a strategy to laser cool the diatomic molecule calcium monofluoride\, 
 a precursor to produce a degenerate dipolar quantum gas. Finally\, I w
 ill show how strings of ions can be used to emulate processes relevant
  for transport phenomena in light harvesting processes.<br>
\n<br>
\nI
  will conclude with a discussion on how to control and study two furth
 er quantum systems: electrons and aluminum chloride. Electrons can be 
 stored in a novel two-frequency Paul trap\, constituting the first ste
 p towards electron quantum computing\; such a trap has\, moreover\, th
 e potential to advance studies on matter-antimatter asymmetries by imp
 roving antihydrogen production. Furthermore\, I will explain a laser c
 ooling scheme for aluminum chloride\, a molecule with excellent prospe
 cts for generating high phase-space density clouds at ultracold temper
 atures to study the physics of degenerate dipolar quantum gases.
URL:https://www.physics.wisc.edu/events/?id=4406
END:VEVENT
END:VCALENDAR