4 papers · 1 filter
Picometer control of a levitating milligram gravity sensor
Dennis G. Uitenbroek, Jurriaan Langendorff, Tjerk H. Oosterkamp
Due to their exceptional isolation from the environment, magnetically levitated particles are explored as extremely sensitive mechanical sensors. For future gravity experiments on…
A Sub-kHz Mechanical Resonator Passively Cooled to 6 mK
Loek van Everdingen, Jaimy Plugge, Tim Fuchs +6
Highly coherent mechanical resonators are invaluable to ultrasensitive detection techniques by enabling detection of small forces. Studying mechanical resonators in a thermal equil…
Superconducting flux concentrator coils for levitation of particles in the Meissner state
Robert Smit, Martijn Janse, Eli van der Bent +5
Magnetic levitation of superconductors is a promising platform to study quantum mechanics in the large-mass limit. One major limitation is the weak trapping potential, which result…
The Instability of a Quantum Superposition of Time Dilations
Louk Rademaker, Tom van der Reep, Nick Van den Broeck +3
Using the relativistic concept of time dilation we show that a superposition of gravitational potentials can lead to nonunitary time evolution. For sufficiently weak gravitational…