Phase Shear Imaging for Long-Baseline Interferometry

用于长基线干涉测量的相位剪切成像

• 批准号: 2601529
• 金额: --
• 依托单位: University of Liverpool
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2601529
• 关键词: Phase; Shear; Imaging; Long; Baseline

MAGIS and AION are long-baseline atomic interferometers for the purposes of dark matter detection and act as a testbed for future gravitational wave detection in the mid-band frequency range between aLIGO and LISA. Being constructed at Fermilab and the UK. They operate by free-falling collections of ultra-cold atoms down its vertical baseline. A series of laser pulses separate the atoms into a superposition of two states and eventually recombines them. The phase differences between the returning atoms result from either a change in acceleration during the free-fall or a change in the length of the baseline. During the program of study, phase-shear imaging will be developed for the detection system of these devices to improve their sensitivity. This will include the assembly of a retro-reflection platform, its commissioning and operation. Data taken using this technique will then be analysed and initial results on dark matter detection produced.

MAGIS和AION是用于暗物质探测的长基线原子干涉仪，并作为未来在aLIGO和LISA之间的中带频率范围内探测引力波的试验台。正在费米实验室和英国建造。它们通过垂直基线下自由下落的超冷原子集合来运作。一系列激光脉冲将原子分离成两种状态的叠加，并最终将它们重新组合。返回的原子之间的相位差要么是由于自由落体过程中加速度的变化，要么是由于基线长度的变化。在研究过程中，将为这些器件的探测系统开发相位剪切成像，以提高它们的灵敏度。这将包括反向反射平台的组装、调试和运行。然后将对使用该技术获取的数据进行分析，并产生暗物质探测的初步结果。