Area B: Quantum cooperativity of collective degrees of freedom

Summary of the area

Area B aims at characterizing quantum cooperative dynamics of the collective degrees of freedom in mesoscopic systems. The aim is to push the limits of quantum cooperativity to the mesoscopic scale. The five projects conforming this area utilize different collective excitations across a wide range of different parameters. They include the dynamics of optomechanical collective modes of cold atomic ensembles, the properties of transport in crystals of trapped ions and in the presence of quantum defects, the controlled interaction of light with mechanical or magnetic degrees of freedom in nanostructured and levitated solid state systems.

Projects

Publications

2023

Bittencourt VA., Potts CA., Huang Y., Davis JP., Viola Kusminskiy S.:
Magnomechanical backaction corrections due to coupling to higher-order Walker modes and Kerr nonlinearities
In: Physical Review B 107 (2023), Article No.: 144411
ISSN: 0163-1829
DOI: 10.1103/PhysRevB.107.144411
Bostroem EV., Parvini TS., Mciver JW., Rubio A., Kusminskiy SV., Sentef MA.:
Direct Optical Probe of Magnon Topology in Two-Dimensional Quantum Magnets
In: Physical Review Letters 130 (2023), Article No.: 026701
ISSN: 0031-9007
DOI: 10.1103/PhysRevLett.130.026701
Müller H., Eckstein M., Viola Kusminskiy S.:
Control of Yu-Shiba-Rusinov States through a Bosonic Mode
In: Physical Review Letters 130 (2023), Article No.: 106905
ISSN: 0031-9007
DOI: 10.1103/PhysRevLett.130.106905
Niederländer M., Vogel J., Schulze-Makuch A., Gély B., Mokhberi A., Schmidt-Kaler F.:
Rydberg ions in coherent motional states: a new method for determining the polarizability of Rydberg ions
In: New Journal of Physics 25 (2023), p. 033020
ISSN: 1367-2630
DOI: 10.1088/1367-2630/acbf06
Potts CA., Huang Y., Bittencourt VA., Viola Kusminskiy S., Davis JP.:
Dynamical backaction evading magnomechanics
In: Physical Review B 107 (2023), Article No.: L140405
ISSN: 0163-1829
DOI: 10.1103/PhysRevB.107.L140405

2022

Engelhardt F., Bittencourt VASV., Huebl H., Klein O., Kusminskiy SV.:
Optimal Broadband Frequency Conversion via a Magnetomechanical Transducer
In: Physical Review Applied 18 (2022), Article No.: 044059
ISSN: 2331-7019
DOI: 10.1103/PhysRevApplied.18.044059
Gajewski M., Li W., Wolf S., Hahn W., Duellmann CE., Budker D., Morigi G., Schmidt-Kaler F.:
Fluorescence calorimetry of an ion crystal
In: Physical Review A 106 (2022), Article No.: 033108
ISSN: 1050-2947
DOI: 10.1103/PhysRevA.106.033108
Kustura K., Wachter V., Lopez AER., Rusconi CC.:
Stability of a magnetically levitated nanomagnet in vacuum: Effects of gas and magnetization damping
In: Physical Review B 105 (2022)
ISSN: 0163-1829
DOI: 10.1103/PhysRevB.105.174439
Li W., Wolf S., Klein L., Budker D., Duellmann CE., Schmidt-Kaler F.:
Robust polarization gradient cooling of trapped ions
In: New Journal of Physics 24 (2022), Article No.: 043028
ISSN: 1367-2630
DOI: 10.1088/1367-2630/ac6233
Sharma S., Bittencourt VASV., Kusminskiy SV.:
Protocol for generating an arbitrary quantum state of the magnetization in cavity magnonics
In: JPhys Materials 5 (2022), Article No.: 034006
ISSN: 2515-7639
DOI: 10.1088/2515-7639/ac81f0

2021

Graf J., Sharma S., Huebl H., Viola Kusminskiy S.:
Design of an optomagnonic crystal: Towards optimal magnon-photon mode matching at the microscale
In: Physical Review Research 3 (2021), Article No.: 013277
ISSN: 2643-1564
DOI: 10.1103/PhysRevResearch.3.013277
Kiethe J., Timm L., Landa H., Kalincev D., Morigi G., Mehlstäubler T.:
Finite-temperature spectrum at the symmetry-breaking linear to zigzag transition
In: Physical Review B 103 (2021), Article No.: 104106
ISSN: 0163-1829
DOI: 10.1103/PhysRevB.103.104106
Potts CA., Varga E., Bittencourt VASV., Viola Kusminskiy S., Davis JP.:
Dynamical Backaction Magnomechanics
In: Physical Review X 11 (2021)
ISSN: 2160-3308
DOI: 10.1103/PhysRevX.11.031053
Rühl M., Lehmeyer J., Nagy R., Weißer M., Bockstedte M., Krieger M., Weber HB.:
Removing the orientational degeneracy of the TS defect in 4H-SiC by electric fields and strain
In: New Journal of Physics 23 (2021), Article No.: 073002
ISSN: 1367-2630
DOI: 10.1088/1367-2630/abfb3e
URL: https://iopscience.iop.org/article/10.1088/1367-2630/abfb3e
Wachter V., Bittencourt VASV., Xie S., Sharma S., Joly N., Russell PSJ., Marquardt F., Viola Kusminskiy S.:
Optical signatures of the coupled spin-mechanics of a levitated magnetic microparticle
In: Journal of the Optical Society of America B-Optical Physics 38 (2021), p. 3858-3871
ISSN: 0740-3224
DOI: 10.1364/JOSAB.440562