Coherent macroscopic quantum tunneling in boson-fermion mixtures
Mesoscale and Nanoscale Physics
2009-11-13 v1 Strongly Correlated Electrons
Abstract
We show that the cold atom systems of simultaneously trapped Bose-Einstein condensates (BEC's) and quantum degenerate fermionic atoms provide promising laboratories for the study of macroscopic quantum tunneling. Our theoretical studies reveal that the spatial extent of a small trapped BEC immersed in a Fermi sea can tunnel and coherently oscillate between the values of the separated and mixed configurations (the phases of the phase separation transition of BEC-fermion systems). We evaluate the period, amplitude and dissipation rate for Na and K-atoms and we discuss the experimental prospects for observing this phenomenon.
Keywords
Cite
@article{arxiv.0704.0650,
title = {Coherent macroscopic quantum tunneling in boson-fermion mixtures},
author = {D. Mozyrsky and I. Martin and E. Timmermans},
journal= {arXiv preprint arXiv:0704.0650},
year = {2009}
}
Comments
4 pages, 3 figures