High temperature thermodynamics of fermionic alkaline earth atoms in optical lattices

Details High temperature thermodynamics of fermionic alkaline earth atoms in optical lattices High temperature thermodynamics of fermionic alkaline earth atoms in optical lattices

2010-10-29

arxiv.org/abs/1011.0032v2

Physics

Condensed Matter

Quantum Gases

4+ pages main text, 2 figures. 3 pages supplementary information, 2 figures. v2: added citation

Scientific paper

We calculate experimentally relevant properties of trapped fermionic alkaline earth atoms in an optical lattice, modeled by the $SU(N)$ Hubbard model. Our calculation is accurate when the temperature is much larger than the tunneling rate, similar to current regimes in ultracold atom experiments. In addition to exploring the Mott insulator-metal crossover, we calculate final temperatures achieved by the standard experimental protocol of adiabatically ramping from a non-interacting gas, as a function of initial gas temperature and final state lattice parameters. Of particular experimental interest, we find that increasing $N$ gives substantially \textit{colder} Mott insulators, up to more than a factor of five for relevant parameters. This cooling happens for all $N$, fixing the initial entropy, or for all $N \lsim 20$ (the exact value depends on dimensionality), fixing the initial temperature.

Affiliated with

Also associated with

No associations

Rating

High temperature thermodynamics of fermionic alkaline earth 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 High temperature thermodynamics of fermionic alkaline earth atoms in optical lattices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High temperature thermodynamics of fermionic alkaline earth atoms in optical lattices will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-405052