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SUMMARY:Dynamics of cold bosons in microtraps - Peter Kruger (The Universi
 ty of Nottingham)
DTSTART:20150427T143000Z
DTEND:20150427T160000Z
UID:TALK58306@talks.cam.ac.uk
CONTACT:6270
DESCRIPTION:Atom chips provide means to cool and trap atoms at distances f
 rom microns to millimetres from surfaces. Different applications of variou
 s manipulation techniques become possible at different lengthscales. In th
 is talk\, we will cover a few examples within the range of possibilities. 
 At relatively large distance scales integrated conductor assemblies based 
 on mm-cm sized wires in combination with micron scale conductor patterns o
 n a chip facilitate robust and efficient laser cooling and Bose-Einstein c
 ondensate production at surface distances that are sufficiently large to p
 rovide optical access for interferometery and to render any harmful surfac
 e effects unimportant. The resulting reliable and robust cold atom sources
  form a basis for quantum sensors with a scope for practical use in the la
 boratory and in the field. At the other end of the scale\, we are working 
 towards more intimate\, but controlled atom-surface coupling at single mic
 ron (and below) distances\, where the atoms can be used as a sensitive mic
 roscopic surface probe and where in turn micro- and nanoscale structuring 
 of the chip surface can be utilised to tailor a quantum gas's environment 
 on length scales on the order of the healing length and the thermal wavele
 ngth of a degenerate gas of bosons. Examples of arising possibilities will
  be given and the experimental route to this regime will be discussed.
LOCATION:Rutherford building\, Seminar Room B
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