Coherent mesoscopic quantum tunneling in boson-fermion mixtures

被引：5

作者：

Mozyrsky, D. ^{[1
]}

Martin, I. ^{[1
]}

Timmermans, E. ^{[1
]}

机构：

[1] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA

来源：

PHYSICAL REVIEW A | 2007年 / 76卷 / 05期

关键词：

D O I：

10.1103/PhysRevA.76.051601

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We show that cold atom systems of simultaneously trapped Bose-Einstein condensates (BECs) 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-23 and K-40 atoms, and we discuss the experimental prospects for observing this phenomenon.

引用

页数：4

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