379 citations · 1.2k across the 10 of their papers we have counts for
9 papers
Real-time optimal quantum control of mechanical motion at room temperature
Lorenzo Magrini, Philipp Rosenzweig, Constanze Bach +6
The ability to accurately control the dynamics of physical systems by measurement and feedback is a pillar of modern engineering. Today, the increasing demand for applied quantum t…
Stationary optomechanical entanglement between a mechanical oscillator and its measurement apparatus
C. Gut, K. Winkler, J. Hoelscher-Obermaier +9
We provide an argument to infer stationary entanglement between light and a mechanical oscillator based on continuous measurement of light only. We propose an experimentally realiz…
Hanbury Brown and Twiss interferometry of single phonons from an optomechanical resonator
Sungkun Hong, Ralf Riedinger, Igor Marinkovic +5
Nano- and micromechanical solid-state quantum devices have become a focus of attention. Reliably generating nonclassical states of their motion is of interest both for addressing f…
Optical trapping and control of nanoparticles inside evacuated hollow core photonic crystal fibers
David Grass, Julian Fesel, Sebastian G. Hofer +2
We demonstrate an optical conveyor belt for levitated nano-particles over several centimeters inside both air-filled and evacuated hollow-core photonic crystal fibers (HCPCF). Dete…
Optimal state estimation for cavity optomechanical systems
Witlef Wieczorek, Sebastian G. Hofer, Jason Hoelscher-Obermaier +3
We demonstrate optimal state estimation for a cavity optomechanical system through Kalman filtering. By taking into account nontrivial experimental noise sources, such as colored l…
Violation of Bell's Inequality in Electromechanics
Sebastian G. Hofer, Konrad W. Lehnert, Klemens Hammerer
Opto- and electromechanical systems offer an effective platform to test quantum theory and its predictions at macroscopic scales. To date, all experiments presuppose the validity o…
Entanglement-enhanced time-continuous quantum control in optomechanics
Sebastian G. Hofer, Klemens Hammerer
The cavity-optomechanical radiation pressure interaction provides the means to create entanglement between a mechanical oscillator and an electromagnetic field interacting with it.…
Time-Continuous Bell Measurements
Sebastian G. Hofer, Denis V. Vasilyev, Markus Aspelmeyer +1
We combine the concept of Bell measurements, in which two systems are projected into a maximally entangled state, with the concept of continuous measurements, which concerns the ev…
Quantum entanglement and teleportation in pulsed cavity-optomechanics
Sebastian G. Hofer, Witlef Wieczorek, Markus Aspelmeyer +1
Entangling a mechanical oscillator with an optical mode is an enticing and yet a very challenging goal in cavity optomechanics. Here we consider a pulsed scheme to create Einstein-…