This TG is concerned with the development of microfabricated plaforms for atomic quantum systems with applications in quantum computing and sensing.


  • Establish Regional TrapFab Facility which achieves/improves
    • Coating Technology,
    • Fine Placement,
    • Chip integrated detectors
    • Chip integrated light sources
  • Long-term goal to achieve UHV, hand-held portable device;
  • Establish spin-offs e.g. ion traps, quantum computing
  • Support EU project


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.org/10.1063/5.0024423

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.org/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 1;91(11). 111301. doi.org/10.1063/5.0024693

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. 2020 Okt 22;36(1). 014002. doi.org/10.1088/1361-6641/abc5ff

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 8;21(4). 043011. doi.org/10.1088/1367-2630/ab0e46

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. doi.org/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.org/10.1038/s41534-019-0184-5

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.org/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 Smart Systems Integration 2019: International Conference and Exhibition on Integration Issues of Miniaturized Systems, SSI 2019. VDE Verlag GmbH. 2019. S. 69-75. (Smart Systems Integration 2019 - International Conference and Exhibition on Integration Issues of Miniaturized Systems, SSI 2019).

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. 260503. doi.org/10.1103/PhysRevLett.123.260503

Involved QF Members
Members Institution Relevant Expertise
Christian Ospelkaus, LeaderLUH / 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
Mayra Garcés-SchröderTUBSNanophotonics for Atom and Ion Manipulation
Klaas StrempelTUBSNanophotonics for Atom and Ion Manipulation
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
New W1TUBSPhotonic Electronic Hybrid Integration
Marc Christopher WurzLUHDevelopment of compact vacuum pumps, pressure measruement devices and miniaturized Rb sources; Atom-Chip Based Gravimeters and Inertial Sensors
Alexander KassnerLUHAtom-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