5 papers
Cascaded Optomechanical Sensing for Small Signals
Marta Maria Marchese, Daniel Braun, Stefan Nimmrichter +1
We propose a sensing scheme for detecting weak forces that achieves Heisenberg-limited sensitivity without relying on entanglement or other non-classical resources. Our scheme util…
Electron-Enabled Nanoparticle Diffraction
Stefan Nimmrichter, Dennis Rätzel, Isobel C. Bicket +2
We propose a scheme for generating high-mass quantum superposition states of an optically pre-cooled, levitated nanoparticle through electron diffraction at its sub-nanometer cryst…
Quantum Metrology of Spin Sensing with Free Space Electrons
Santiago Beltrán-Romero, Michael Gaida, Philipp Haslinger +2
Recent advances in transmission electron microscopy (TEM) have opened the path toward spin resonance spectroscopy with single-spin sensitivity. To assess this potential, we investi…
The path towards measuring the gravitational field of proton bunches at accelerators
Daniel Braun, Rongrong Cai, Pascal Hermes +6
The Newtonian law describing the gravitational interaction of non-relativistic (slowly moving) gravitating matter, has been tested in many laboratory experiments with very high pre…
Metrology of Gravitational Effects with Mechanical Quantum Systems
Daniel Braun, Marta Maria Marchese, Stefan Nimmrichter +3
Mechanical quantum systems, such as resonators and levitated particles, offer unique opportunities for quantum metrology. Particularly, their significant mass and quantum-level con…