A phonon laser in ultra-cold matter

Details A phonon laser in ultra-cold matter A phonon laser in ultra-cold matter

2009-11-25

arxiv.org/abs/0911.4916v1

Physics

Condensed Matter

Quantum Gases

4 pages, submitted to PRL

Scientific paper

We show the possible excitation of a phonon laser instability in an ultra-cold atomic gas confined in a magneto-optical trap. Such an effect results from a negative Landau damping of the collective density perturbations in the gas, leading to the coherent emission of phonons. This laser instability can be driven by a blue-detuned laser superimposed to the usual red-detuning laser beams which usually provide the cooling mechanism. Threshold conditions, instability growth rates and saturation levels are derived. This work generalizes, on theoretical grounds, the recent results obtained with single ion phonon laser, to an ultra-cold atomic gas, where real phonons can be excited. Future phonon lasers could thus adequately be called phasers.

Affiliated with

Also associated with

No associations

Rating

A phonon laser in ultra-cold matter 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 A phonon laser in ultra-cold matter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A phonon laser in ultra-cold matter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-624275