Cooling schemes for two-component fermions in layered optical lattices
Abstract
Recently, a cooling scheme for ultracold atoms in a bilayer optical lattice has been proposed [A. Kantian et al., arXiv:1609.03579]. In their scheme, the energy offset between the two layers is increased dynamically such that the entropy of one layer is transferred to the other layer. Using the full-Hilbert-space approach, we compute cooling dynamics subjected to the scheme in order to show that their scheme fails to cool down two-component fermions. We develop an alternative cooling scheme for two-component fermions, in which the spin-exchange interaction of one layer is significantly reduced. Using both full-Hilbert-space and matrix-product-state approaches, we find that our scheme can decrease the temperature of the other layer by roughly half.
Keywords
Cite
@article{arxiv.1710.00521,
title = {Cooling schemes for two-component fermions in layered optical lattices},
author = {Shimpei Goto and Ippei Danshita},
journal= {arXiv preprint arXiv:1710.00521},
year = {2017}
}
Comments
11 pages, 13 figures, typo of article number in abstract fixed