Towards the study of topological defects in 87-Rubidium Bose-Einstein condensate

这个项目完全是实验性的。该装置通过全光学方法产生了一个三维的87-Rb玻色-爱因斯坦凝聚体。这意味着铷原子在宏观上处于最低能态，低于一定的临界温度，表现出集体行为。该项目的主要目的是研究不同类型的非线性动力效应对凝析油的影响。这些动力学取决于玻色子之间相互作用的类型，比如产生漩涡或孤子的玻色子。这两种现象在理论上和实验上都得到了很好的研究，它们是我们实验中首先研究的两个案例。当达到第一个目标时，将研究更复杂的情况。为了产生这些复杂的效果，需要一种称为空间光调制器（SLM）的光电器件。当激光光源照射时，该装置允许发射任何类型的光模式。这种模式将与凝结水的原子相互作用，从而产生这些非线性动力学。该装置目前已安装在设备中，并正在进行测试，以便重现上述情况。注：该生现已转读硕士学位。

This project is totally experimental. The set-up generates a 3-dimensional 87-Rb Bose-Einstein condensate by all-optical methods. This means that rubidium atoms macroscopically occupy the lowest energy state below a certain critical temperature showing a collective behaviour. The main objective of the project is the study of different kind of non-linear dynamic effects over the condensate. These dynamics depend on the type of interactions between the bosons which give rise to vortices or solitons, for example. These two phenomena are well studied theoretically and experimentally and they are the first cases which will be studied first in our experiment. When this first objective will be reached, more complex cases will be studied. In order to generate these complex effects it is necessary an opto-electronic device called spatial light modulator (SLM). This device allows the emission of any kind of light pattern when is shined by a laser source. This pattern will be interact with the atoms of the condensate given rise to these non-linear dynamics. This device is currently installed in the set-up and it is being tested in order to reproduce the mentioned cases. Note: the student has now transferred to a master's degree.