Publications by authors named "Jasper Krauser"
Interferometric laser ranging is an enabling technology for high-precision satellite-to-satellite tracking within the context of Earth observation, gravitational wave detection, or formation flying. In orbit, the measurement system is affected by environmental influences, particularly satellite attitude jitter and temperature fluctuations, imposing an instrument design with a high level of thermal stability and insensitivity to rotations around the spacecraft center of mass. The new design concept presented here combines different approaches for dynamic heterodyne laser ranging and features the inherent beam-tracking capabilities of a retroreflector in a mono-axial configuration.
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- The first detection of a Higgs-type amplitude mode has been achieved using Bragg spectroscopy in a strongly interacting condensate of ultracold atoms situated in an optical lattice.
- By comparing experimental results with a time-dependent bosonic Gutzwiller calculation, researchers were able to identify the amplitude mode accurately, demonstrating detection capabilities that exceed the linear response regime.
- A noticeable shift in the resonance frequencies of both sound and amplitude modes was observed, attributed to the finite intensity of the Bragg beam used in the experiments.