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TrapFab

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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

  • 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 Mär 14;27(3):033019. doi: 10.1088/1367-2630/adbc14
    Dubielzig 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: 10.1063/5.0024423
    Strempel 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 Okt 29. doi: 10.1088/1361-6641/abc5ff
    Tanaka 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 Mär 5;6(2):024010. doi: 10.1088/2058-9565/abe51a
    Nordmann 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, 10.1063/5.0160415
    Bautista-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, 10.15488/10409
    Christ 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 Dez 1;11(4):561-566. Epub 2019 Mai 25. doi: 10.1007/s12567-019-00252-0
    Hahn 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, 10.15488/9283
    Hahn 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/s00340-019-7265-1
    Kassner A, Rechel M, Heine H, Herr W, Christ M, Krutzik M et al. Atom chip technology for use under UHV conditions. in Otto T, Hrsg., Smart Systems Integration 2019: International Conference and Exhibition on Integration Issues of Miniaturized Systems, SSI 2019. VDE Verlag GmbH. 2019. S. 69-75
    Zarantonello 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 Dez 31;123(26):260503. Epub 2019 Dez 26. doi: 10.48550/arXiv.1911.03954, 10.1103/PhysRevLett.123.260503

TG Members

  • TG Members
    MembersInstitutionRelevant Expertise
    Julia-Aileen Coenders, LeaderLUHFabrication of 3D Ion Traps, Micro-structuring of Substrates & Assembly
    Alexander Kassner, LeaderLUHAtom-Chip Based Gravimeters and Inertial Sensors
    Friederike GiebelLUHFabrication of Surface-Electrode Ion Traps for Scaling and Integration, MEMS- and CMOS-technology
    Christian OspelkausLUH / PTBScalable Surface-Electrode Ion Traps; Integrated Microwave and RF Control Elements
    Amado Bautista-SalvadorLUH / PTBScalable Surface-Electrode Ion Traps
    Andreas WaagTUBSCoherent Light Field Control; Nanophotonics for Atom and Ion Manipulation; Hybrid integration of GaN LEDs with conductive substrates
    Stefanie KrokerPTB / TUBSComplex Coupled High Index Waveguide Arrays ; Photonic Nanomaterials in the Strong Optomechanical Coupling Regime
    Liam Shelling-NetoPTB / TUBSComplex Coupled High Index Waveguide Arrays
    Tanja MehlstäublerPTB / LUHDynamics of ion Coulomb Crystals; Integrated Chip Traps and Optical Components
    Daniel BennettPTBIntegrated Chip Traps and Optical Components
    Dietmar KrachtLZHAdvanced Light Sources; Precision Additive Manufacturing of Quantum Sensors; High power solid-state single frequency amplifiers
    Christian Zander / Christian HoffLZHPrecision Additive Manufacturing of Quantum Sensors
    Boris ChichkovLUHNanoscale Materials Processing
    Ulf HinzeLUHNanoscale Materials Processing
    Marc Christopher WurzLUHDevelopment of compact vacuum pumps, pressure measruement devices and miniaturized Rb sources; Atom-Chip Based Gravimeters and Inertial Sensors
    Ernst M. RaselLUHQuantum Gravimeters; Atom-Chip Based Gravimeters and Inertial Sensors
    Milutin KovacevLUHEnhanced Optical Nonlinearities and High-Harmonic Generation
    Philip MoselLUHEnhanced Optical Nonlinearities and High-Harmonic Generation
    Markus KromreyPTBIntegrated Chip Traps and Optical Components
    Waldemar HerrLUHQuantum Gravimeters; Atom-Chip Based Gravimeters and Inertial Sensors
    Hendrik HeineLUHQuantum Gravimeters; Atom-Chip Based Gravimeters and Inertial Sensors
    Sven AbendLUHQuantum Gravimeters; Atom-Chip Based Gravimeters and Inertial Sensors
    Jacob StuppLUHFabrication of Surface-Electrode Ion Traps, Micro-structuring of Substrates & Assembly
    Eike IsekeLUHFabrication of Surface-Electrode Ion Traps, Micro-structuring of Substrates & Assembly
    Nila KrishnakumarPTBFabrication of Surface-Electrode Ion Traps, Micro-structuring of Substrates & Assembly
    Konstantin ThronberensPTBFabrication of Surface-Electrode Ion Traps, Micro-structuring of Substrates & Assembly
    Nora StahrLUH 

Letzte Änderung: 17.06.26; Dr. A. Wanner Druckversion

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