activity
20202026
most citedReal-time optimal quantum control of mechanical motion at room temperature

379 citations · 488 across the 6 of their papers we have counts for

collaborators

7 papers

quant-ph2026

Limits of Stable Near-Field Probing in Nanophotonic Traps

Johannes Piotrowski, Constanze Bach, Nicolás Vera Paz +2

Near-fields around nanophotonic structures and waveguides can be used to optically interface particles ranging from atoms and molecules to microscopic biological and synthetic part…

quant-ph2024★ 3 cited

Emergence of second-order coherence in superfluorescence

Constanze Bach, Felix Tebbenjohanns, Christian Liedl +2

We experimentally investigate the second-order quantum coherence function of a superradiant burst in a cascaded quantum system. We chirally (i.e. direction-dependently) couple roug…

quant-ph2024★ 16 cited

Predicting correlations in superradiant emission from a cascaded quantum system

Felix Tebbenjohanns, Christopher D. Mink, Constanze Bach +2

In recent experiments, a novel type of cascaded quantum system has been realized using nanofiber-coupled cold atomic ensembles. This setup has enabled the study of superradiant dec…

quant-ph2022★ 50 cited

Observation of superradiant bursts in a cascaded quantum system

Christian Liedl, Felix Tebbenjohanns, Constanze Bach +3

Dicke superradiance describes the collective radiative decay of a fully inverted ensemble of two-level atoms. We experimentally investigate this effect for a chiral, i.e.,~directio…

quant-ph2022★ 37 cited

Squeezed light from a levitated nanoparticle at room temperature

Lorenzo Magrini, Victor A. Camarena-Chávez, Constanze Bach +2

Quantum measurements of mechanical systems can produce optical squeezing via ponderomotive forces. Its observation requires high environmental isolation and efficient detection, ty…

quant-ph2020★ 379 cited

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…

physics.optics2020★ 3 cited

Nanofiber based displacement sensor

Chengjie Ding, Maxime Joos, Constanze Bach +5

We report on the realization of a displacement sensor based on an optical nanofiber. A single gold nano-sphere is deposited on top of a nanofiber and the system is placed within a…