Spin gradient thermometry for ultracold atoms in optical lattices

Details Spin gradient thermometry for ultracold atoms in optical lattices Spin gradient thermometry for ultracold atoms in optical lattices

2009-08-21

arxiv.org/abs/0908.3046v2

Phys. Rev. Lett. 103, 245301 (2009)

Physics

Condensed Matter

Quantum Gases

5 pages, 3 figures, minor edits for clarity

Scientific paper

10.1103/PhysRevLett.103.245301

We demonstrate spin gradient thermometry, a new general method of measuring the temperature of ultracold atoms in optical lattices. We realize a mixture of spins separated by a magnetic field gradient. Measurement of the width of the transition layer between the two spin domains serves as a new method of thermometry which is observed to work over a broad range of lattice depths and temperatures, including in the Mott insulator regime. We demonstrate the thermometry in a system of ultracold rubidium atoms, and suggest that interesting spin physics can be realized in this system. The lowest measured temperature is 1 nK, indicating that the system has reached the quantum regime, where insulating shells are separated by superfluid layers.

Affiliated with

Also associated with

No associations

Rating

Spin gradient thermometry for ultracold atoms in optical lattices 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 Spin gradient thermometry for ultracold atoms in optical lattices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spin gradient thermometry for ultracold atoms in optical lattices will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-666180