Laser cooling in the Penning trap: an analytical model for cooling rates in the presence of an axializing field

Details Laser cooling in the Penning trap: an analytical model for cooling rates in the presence of an axializing field Laser cooling in the Penning trap: an analytical model for cooling rates in the presence of an axializing field

2007-09-24

arxiv.org/abs/0709.3817v1

Physics

Quantum Physics

22 pages, 7 figures

Scientific paper

10.1088/0953-4075/41/3/035301

Ions stored in Penning traps may have useful applications in the field of quantum information processing. There are, however, difficulties associated with the laser cooling of one of the radial motions of ions in these traps, namely the magnetron motion. The application of a small radio-frequency quadrupolar electric potential resonant with the sum of the two radial motional frequencies has been shown to couple these motions and to lead to more efficient laser cooling. We present an analytical model that enables us to determine laser cooling rates in the presence of such an 'axializing' field. It is found that this field leads to an averaging of the laser cooling rates for the two motions and hence improves the overall laser cooling efficiency. The model also predicts shifts in the motional frequencies due to the axializing field that are in qualitative agreement with those measured in recent experiments. It is possible to determine laser cooling rates experimentally by studying the phase response of the cooled ions to a near resonant excitation field. Using the model developed in this paper, we study the expected phase response when an axializing field is present.

Affiliated with

Also associated with

No associations

Rating

Laser cooling in the Penning trap: an analytical model for cooling rates in the presence of an axializing field does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Laser cooling in the Penning trap: an analytical model for cooling rates in the presence of an axializing field, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laser cooling in the Penning trap: an analytical model for cooling rates in the presence of an axializing field will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-277549