Recati A, Fedichev P O, Zwerger W, Zoller P
Institute for Theoretical Physics, University of Innsbruck, A-6020 Innsbruck, Austria.
Phys Rev Lett. 2003 Jan 17;90(2):020401. doi: 10.1103/PhysRevLett.90.020401. Epub 2003 Jan 15.
We investigate the physical properties of quasi-1D quantum gases of fermionic atoms confined in harmonic traps. Using the fact that for a homogeneous gas the low-energy properties are exactly described by a Luttinger model, we analyze the nature and manifestations of spin-charge separation, where in the case of atoms "spin" and "charge" refer to two internal atomic states and the atomic mass density, respectively. We discuss the necessary physical conditions and experimental limitations confronting possible experimental implementations.
我们研究了囚禁在谐波势阱中的费米子原子准一维量子气体的物理性质。利用均匀气体的低能性质可由卢廷格模型精确描述这一事实，我们分析了自旋 - 电荷分离的本质和表现形式，其中对于原子而言，“自旋”和“电荷”分别指两个内部原子态和原子质量密度。我们讨论了可能的实验实现所面临的必要物理条件和实验限制。
