4 papers
Three-dimensional squeezing of optically levitated nanospheres
Giacomo Marocco, David C. Moore, Daniel Carney
We propose a protocol to measure impulses beyond the standard quantum limit. The protocol reduces noise in all three spatial dimensions and consists of squeezing a mechanical syste…
Mechanical Sensors for Ultraheavy Dark Matter Searches via Long-range Forces
Juehang Qin, Dorian W. P. Amaral, Sunil A. Bhave +10
Dark matter candidates with masses around the Planck-scale are theoretically well-motivated, and it has been suggested that it might be possible to search for dark matter solely vi…
Impulse measurements enhanced with squeezed readout light
Tsai-Chen Lee, Jacob L. Beckey, Giacomo Marocco +1
We quantify how squeezed light can reduce quantum measurement noise to levels below the standard quantum limit in impulse measurements with mechanical detectors. The broadband natu…
Superconducting Levitated Detector of Gravitational Waves
Daniel Carney, Gerard Higgins, Giacomo Marocco +1
A magnetically levitated mass couples to gravity and can act as an effective gravitational wave detector. We show that a superconducting sphere levitated in a quadrupolar magnetic…