Interacting two-dimensional quantum gases in optical traps

在远失谐偶极子势中创造和操纵原子量子气体的能力为原子相互作用和集体量子现象的研究提供了新的可能性。在这些陷阱中，二维量子气体可以在远离表面的地方实现和操纵。通过这种方式，在分数量子霍尔多粒子态中产生具有快速旋转光学陷阱的量子气体的新前景出现，以提供强磁场中二维电子气体的玻色子模拟。在第一步，我们计划在二维光阱阵列中观察准密实。通过一种新的调制技术旋转原子微云，可以达到分数量子霍尔型状态。我们计划在二维陷阱中创建高度相关的量子霍尔态，作为有效的原子间相互作用的结果。这种相关多粒子状态的证据可以从观察旋转微云的坍缩和干涉图样的恢复中得到。这项工作的一个角度是检测分数统计。我们期望光学陷阱中的量子气体将成为探索二维量子系统丰富物理特性的有力工具，在二维量子系统中，新的相关多粒子态可以成为系统的基态。

The ability to create and manipulate atomic quantum gases in far detuned dipole potentials offers novel possibilities for the study of atomic interactions and collective quantum phenomena. In these traps, two-dimensional quantum gases can be realized and manipulated far from surfaces. In this way, novel prospects arise for the generation of quantum gases in fractional quantum Hall multiparticle states with rapidly rotating optical traps to provide a bosonic analogue of two-dimensional electron gases in strong magnetic fields. In a first step, we plan to observe quasicondensation in an array of two-dimensional optical traps. By rotating the atomic microclouds with a novel modulation technique, a fractional quantum-Hall type regime can be reached. We plan to create highly correlated quantum-Hall states in the two-dimensional traps, as the result of an effective interatomic interaction. Evidence for this correlated multiparticle regime can be obtained from the observation of collapse and revival of the interference pattern of the rotated microclouds. A perspective of this work is to detect fractional statistics. We expect that quantum gases in optical traps will be a powerful tool in the exploration of the rich physics of two-dimensional quantum systems, where novel correlated multiparticle states can be the system ground state.