Development of microfabricated plaforms for atomic quantum systems with applications in quantum computing and sensing.
Contributions to QuantumFrontiers
- Established a regional TrapFab Facility which advances scalability, compactness and stability of atom and ion trap technology
- Advancement of engineering fabrication processes and research on integrating control techniques (optical, electronic) for scalable chip structures
- Improvements to coating technology, fine placement, chip integrated detectors and light-sources
- Development of UHV, hand-held portable devices
- Basic research for the stimulation of future spin-offs e.g. in the technology sectors atom/ion traps and quantum computing
- Support for EU projects
Collaborative Innovation
- Waveguide-traps (Kroker TUBS / Mehlstäubler, C. Ospelkaus PTB, LUH)
- Hybrid assembly and socket technology: (Wurz LUH / C. Ospelkaus LUH, PTB / Waag TUBS)
- Atom-Chips: (Wurz, Rasel LUH)
- Cryogenic integrated microwave circuits (Issakov TUBS / Bieler PTB / C. Ospelkaus LUH, PTB)
- fs-laser manufacturing of 3D ion traps (Chichkov LUH / Mehlstäubler PTB, LUH)
- Ion-trap control electronics: (Schilling TUBS / Schöbel PTB / C. Ospelkaus LUH, PTB)
Scientific Output
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Publications
Heine H, Arnold AS, Le Gonidec M, Griffin PF, Riis E, Herr W et al. A compact high-flux grating chip cold atom source. New Journal of Physics. 2025 Mar 14;27(3):033019. doi: 10.1088/1367-2630/adbc14Dubielzig T, Halama S, Hahn H, Zarantonello G, Niemann M, Bautista-Salvador A et al. Ultra-low-vibration closed-cycle cryogenic surface-electrode ion trap apparatus. Review of scientific instruments. 2021 Apr 13;92(4):043201. doi: 10.1063/5.0024423Strempel K, Römer F, Yu F, Meneghini M, Bakin A, Wehmann HH et al. Vertical 3D gallium nitride field-effect transistors based on fin structures with inverted p-doped channel. Semiconductor Science and Technology. 2021 Jan;36(1):014002. Epub 2020 Oct 29. doi: 10.1088/1361-6641/abc5ffTanaka U, Nakamura M, Hayasaka K, Bautista-Salvador A, Ospelkaus C, Mehlstäubler TE. Creation of double-well potentials in a surface-electrode trap towards a nanofriction model emulator. Quantum Science and Technology. 2021 Mar 5;6(2):024010. doi: 10.1088/2058-9565/abe51aNordmann T, Didier A, Doležal M, Balling P, Burgermeister T, Mehlstäubler TE. Sub-kelvin temperature management in ion traps for optical clocks. Review of scientific instruments. 2020 Nov 24;91(11):111301. doi: 10.48550/arXiv.2008.04231, 10.1063/5.0024693, 10.1063/5.0160415Bautista-Salvador A, Zarantonello G, Hahn H, Preciado-Grijalva A, Morgner J, Wahnschaffe M et al. Multilayer ion trap technology for scalable quantum computing and quantum simulation. New journal of physics. 2019 Apr;21(4):043011. Epub 2019 Apr 8. doi: 10.1088/1367-2630/ab0e46, 10.15488/10409Christ M, Kassner A, Smol R, Bawamia A, Heine H, Herr W et al. Integrated atomic quantum technologies in demanding environments: development and qualification of miniaturized optical setups and integration technologies for UHV and space operation. CEAS Space Journal. 2019 Dec 1;11(4):561-566. Epub 2019 May 25. doi: 10.1007/s12567-019-00252-0Hahn H, Zarantonello G, Schulte M, Bautista-Salvador A, Hammerer K, Ospelkaus C. Integrated 9Be+ multi-qubit gate device for the ion-trap quantum computer. npj Quantum information. 2019 Aug 16;5(1):70. doi: 10.1038/s41534-019-0184-5, 10.15488/9283Hahn H, Zarantonello G, Bautista-Salvador A, Wahnschaffe M, Kohnen M, Schoebel J et al. Multilayer ion trap with three-dimensional microwave circuitry for scalable quantum logic applications. Applied Physics B: Lasers and Optics. 2019 Jul 31;125(8):154. doi: 10.1007/s00340-019-7265-1Kassner A, Rechel M, Heine H, Herr W, Christ M, Krutzik M et al. Atom chip technology for use under UHV conditions. In Otto T, editor, Smart Systems Integration 2019: International Conference and Exhibition on Integration Issues of Miniaturized Systems, SSI 2019. VDE Verlag GmbH. 2019. p. 69-75Zarantonello G, Hahn H, Schulte M, Bautista-Salvador A, Werner RF, Hammerer K et al. Robust and Resource-Efficient Microwave Near-Field Entangling ^{9}Be^{+} Gate. Physical review letters. 2019 Dec 31;123(26):260503. Epub 2019 Dec 26. doi: 10.48550/arXiv.1911.03954, 10.1103/PhysRevLett.123.260503
TG Members
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Involved Members and their Relevant Expertise
Members Institution Relevant Expertise Julia-Aileen Coenders, Leader LUH Fabrication of 3D Ion Traps, Micro-structuring of Substrates & Assembly Alexander Kassner, Leader LUH Atom-Chip Based Gravimeters and Inertial Sensors Agus Budi Dharmawan TUBS Nanophotonics for Atom and Ion Manipulation Mouine Abidi LUH Lars Bauer PTB Integrated Chip Traps and Optical Components Amado Bautista-Salvador LUH / PTB Scalable Surface-Electrode Ion Traps Mark Bieler PTB Quantenelektronik Massum Billah LUH Kai-Christian Bruns LUH Atasi Chatterjee PTB Integrated Chip Traps and Optical Components Christian Ospelkaus LUH / PTB Scalable Surface-Electrode Ion Traps; Integrated Microwave and RF Control Elements Boris Chichkov LUH Nanoscale Materials Processing Sascha de Wall LUH Atom-Chip Based Gravimeters and Inertial Sensors Folke Dencker LUH Atom-Chip Based Gravimeters and Inertial Sensors Agus Budi Dharmawan TUBS Nanophotonics for Atom and Ion Manipulation Leonard Diekmann LUH Atom-Chip Based Gravimeters and Inertial Sensors Niklas Droese LUH Atom-Chip Based Gravimeters and Inertial Sensors Alexander Fernandez-Scarioni PTB Josephson-Schaltungen, Nanostrukturierung und Reinraumzentrum-Infrastruktur Friederike Giebel LUH Fabrication of Surface-Electrode Ion Traps for Scaling and Integration, MEMS- and CMOS-technology Carl Grimpe PTB Integrated Chip Traps and Optical Components Waldemar Herr LUH Quantum Gravimeters; Atom-Chip Based Gravimeters and Inertial Sensors Ulf Hinze LUH Nanoscale Materials Processing Philipp Luca Hoffmann LUH Eike Iseke LUH Fabrication of Surface-Electrode Ion Traps, Micro-structuring of Substrates & Assembly Vadim Issakov TUBS CMOS Elena Jordan PTB Julian Kaßmann TUBS Nanophotonics for Atom and Ion Manipulation Lauritz Keinert LUH Atom-Chip Based Gravimeters and Inertial Sensors Roman Kiyan LUH Nanoscale Materials Processing Milutin Kovacev LUH Enhanced Optical Nonlinearities and High-Harmonic Generation Dietmar Kracht LZH Advanced Light Sources; Precision Additive Manufacturing of Quantum Sensors; High power solid-state single frequency amplifiers Nila Krishnakumar PTB Fabrication of Surface-Electrode Ion Traps, Micro-structuring of Substrates & Assembly Stefanie Kroker TUBS Complex Coupled High Index Waveguide Arrays ; Photonic Nanomaterials in the Strong Optomechanical Coupling Regime Markus Kromrey PTB Integrated Chip Traps and Optical Components Marlon Kuhn LUH Fabrication of 3D Ion Traps, Micro-structuring of Substrates & Assembly Kestutis Kurselis LUH Nanoscale Materials Processing Tara Liebisch PTB Tanja Mehlstäubler PTB / LUH Dynamics of ion Coulomb Crystals; Integrated Chip Traps and Optical Components Florian Meierhofer TUBS Nanophotonics for Atom and Ion Manipulation Philip Mosel LUH Enhanced Optical Nonlinearities and High-Harmonic Generation Jörg Neumann LZH Advanced Light Sources; Precision Additive Manufacturing of Quantum Sensors; High power solid-state single frequency amplifiers Christian Ospelkaus LUH / PTB Scalable Surface-Electrode Ion Traps; Integrated Microwave and RF Control Elements Ernst M. Rasel LUH Quantum Gravimeters; Atom-Chip Based Gravimeters and Inertial Sensors Sebastian Raupach PTB Steffen Sauer TUBS Complex Coupled High Index Waveguide Arrays Dennis Schlippert LUH Quanten-Inertialsensorik Liam Shelling-Neto TUBS Complex Coupled High Index Waveguide Arrays Nora Stahr LUH Fabrication of 3D Ion Traps, Micro-structuring of Substrates & Assembly Jacob Stupp LUH Fabrication of Surface-Electrode Ion Traps, Micro-structuring of Substrates & Assembly Konstantin Thronberens PTB Fabrication of Surface-Electrode Ion Traps, Micro-structuring of Substrates & Assembly Maximilian Vergin TUBS Nanophotonics for Atom and Ion Manipulation Andreas Waag TUBS Coherent Light Field Control; Nanophotonics for Atom and Ion Manipulation; Hybrid integration of GaN LEDs with conductive substrates Thomas Weimann PTB Nanostrukturierung und Reinraumzentrum-Infrastruktur Silke Wolter TUBS Nanophotonics for Atom and Ion Manipulation Marc Christopher Wurz LUH Development of compact vacuum pumps, pressure measruement devices and miniaturized Rb sources; Atom-Chip Based Gravimeters and Inertial Sensors
