论文标题
Bose-Einstein冷凝物中涡流的相位检索
Phase Retrieval of Vortices in Bose-Einstein Condensates
论文作者
论文摘要
我们从数值上提出并证明了一种测量方案，用于从飞行时间测量中完全重建Bose-Einstein冷凝物，振幅和相位的2D量子波函数。我们确定了高对称激发（例如涡旋）相结构中存在的基本歧义，并通过允许在不同方向上允许不同的扩展持续时间来表达如何克服它。我们通过重建物质波涡流和涡流阵列来证明这种方法。
We propose and demonstrate numerically a measurement scheme for complete reconstruction of the 2D quantum wave function of a Bose-Einstein condensate, amplitude and phase, from a time-of-flight measurement. We identify a fundamental ambiguity present in the measurement of phase structures of high-symmetry excitations (e.g., vortices) and show how to overcome it by allowing for different expansion durations in different directions. We demonstrate this approach with the reconstruction of matter-wave vortices and arrays of vortices.
