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首页> 外文期刊>Physical Review, A. Atomic, molecular, and optical physics >Light-induced effective magnetic fields for ultracold atoms in planar geometries
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Light-induced effective magnetic fields for ultracold atoms in planar geometries

机译：平面几何中超冷原子的光诱导有效磁场

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摘要

We propose a scheme to create an effective magnetic field for ultracold atoms in a planar geometry. The setup allows the experimental study of classical and quantum Hall effects in close analogy to solid-state systems including the possibility of finite currents. The present scheme is an extention of the proposal in Phys. Rev. Lett. 93, 033602 (2004), where the effective magnetic field is now induced for three-level Lambda-type atoms by two counterpropagating laser beams with shifted spatial profiles. Under conditions of electromagnetically induced transparency the atom-light interaction has a space-dependent dark state, and the adiabatic center-of-mass motion of atoms in this state experiences effective vector and scalar potentials. The associated magnetic field is oriented perpendicular to the propagation direction of the laser beams. The field strength achievable is one flux quantum over an area given by the transverse beam separation and the laser wavelength. For a sufficiently dilute gas the field is strong enough to reach the lowest Landau level regime.
机译：我们提出了一种为平面几何中的超冷原子创建有效磁场的方案。该设置可以对经典霍尔效应和量子霍尔效应进行实验研究，类似于固态系统，包括有限电流的可能性。本方案是Phys。牧师93，033602（2004），其中三级Lambda型原子的有效磁场现在是由两个具有空间分布偏移的反向传播的激光束感应的。在电磁感应的透明性条件下，原子与光的相互作用具有与空间有关的暗态，并且在此状态下原子的绝热质心运动会经历有效的矢量和标量势。关联的磁场垂直于激光束的传播方向。可获得的场强是在由横向光束分离和激光波长给定的区域上的一个通量量子。对于足够稀的气体，该场足够强大，可以达到最低的兰道水准。

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