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Logo: Institut für Quantenoptik/Leibniz Universität Hannover
Logo Leibniz Universität Hannover
Logo: Institut für Quantenoptik/Leibniz Universität Hannover
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Publications

Here you can find publications related to our surface-electrode Paul trap, microwave quantum logic and the (anti-)proton experiment. Earlier work at other institutions, in particular the NIST Ion Storage Group and ILP, Universität Hamburg, is listed below as well.


2017 2016 2015 2014 2013 2011 2010 2009 2008 2007 2006 2003 all years

Article

C. Smorra, A. Mooser, M. Besirli, M. Bohman, M. J. Borchert, J. Harrington, T. Higuchi, H. Nagahama, G. L. Schneider, S. Sellner, T. Tanaka, K. Blaum, Y. Matsuda, C. Ospelkaus, W. Quint, J. Walz , Y. Yamazaki , S. Ulmer (2017): Observation of individual spin quantum transitions of a single antiproton, Physics Letters B 769, 1 (2017) more

H. Nagahama, C. Smorra, S. Sellner, J. Harrington, T. Higuchi, M. J. Borchert, T. Tanaka, M. Besirli, A. Mooser, G. Schneider, K. Blaum, Y. Matsuda, C. Ospelkaus, W. Quint, J. Walz, Y. Yamazaki & S. Ulmer (2017): Sixfold improved single particle measurement of the magnetic moment of the antiproton, Nature Communications 8, 14084 (2017) more

M. Wahnschaffe, H. Hahn, G. Zarantonello, T. Dubielzig, S. Grondkowski, A. Bautista-Salvador, M. Kohnen, and C. Ospelkaus (2017): Single-ion microwave near-field quantum sensor, Applied Physics Letters 110, 034103 (2017) more

S. Ulmer, A. Mooser, K. Blaum, S. Braeuninger, K. Franke, H. Kracke, C. Leiteritz, Y. Matsuda, H. Nagahama, C. Ospelkaus, C. C. Rodegheri, W. Quint, G. Schneider, C. Smorra, S. Van Gorp, J. Walz, and Y. Yamazaki (2017): The magnetic moments of the proton and the antiproton, Journal of Physics: Conference Series 488, 012033 (2014) more

H. Nagahama, G. Schneider, A. Mooser, C. Smorra, S. Sellner, J. Harrington, T. Higuchi, M. Borchert, T. Tanaka, M. Besirli, K. Blaum, Y. Matsuda, C. Ospelkaus, W. Quint, J. Walz, Y. Yamazaki, and S. Ulmer (2016): Highly sensitive superconducting circuits at ∼700 kHz with tunable quality factors for image-current detection of single trapped antiprotons, Review of Scientific Instruments 87, 113305 (2016) more

J. M. Cornejo, M. J. Gutiérrez, E. Ruiz, A. Bautista-Salvador, C. Ospelkaus, S. Stahl, D. Rodríguez (2016): An optimized geometry for a micro Penning-trap mass spectrometer based on interconnected ions, International Journal of Mass Spectrometry 410, 22 (2016) more

C. Smorra, K. Blaum, L. Bojtar, M. Borchert, K. A. Franke, T. Higuchi, N. Leefer, H. Nagahama , Y. Matsuda, A. Mooser, M. Niemann, C. Ospelkaus, W. Quint, G. Schneider, S. Sellner, T. Tanaka, S. Van Gorp, J. Walz, Y. Yamazaki, and S. Ulmer (2015): BASE – The Baryon Antibaryon Symmetry Experiment, The European Physical Journal Special Topics 224, 3055 (2015) more

C. Smorra, K. Blaum, K. Franke, Y. Matsuda, A. Mooser, H. Nagahama, C. Ospelkaus, W. Quint, G. Schneider, S. Van Gorp, J. Walz, Y. Yamazaki, S. Ulmer (2014): Towards a high-precision measurement of the antiproton magnetic moment, Hyperfine Interactions 228, 31 (2014) more

Christian Ospelkaus, Ulrich Warring, Yves Colombe (2014): Qubits in der Mikrowelle, Physik in unserer Zeit 45, 72 (2014) more

M. Carsjens, M. Kohnen, T. Dubielzig, and C. Ospelkaus (2013): Surface-electrode Paul trap with optimized near-field microwave control, Applied Physics B 114, 243 (2013) more

U. Warring, C. Ospelkaus, Y. Colombe, K. R. Brown, J. M. Amini, M. Carsjens, D. Leibfried, and D. J. Wineland  (2013): Techniques for microwave near-field quantum control of trapped ions, Physical Review A 87, 013437 (2013). more

U. Warring, C. Ospelkaus, Y. Colombe, R. Jördens, D. Leibfried, and D. J. Wineland (2013): Individual-Ion Addressing with Microwave Field Gradients, Physical Review Letters 110, 173002 (2013). more

A. C. Wilson, C. Ospelkaus, A. P. VanDevender, J. A. Mlynek, K. R. Brown, D. Leibfried, and D. J. Wineland  (2011): A 750-mW, continuous-wave, solid-state laser source at 313 nm for cooling and manipulating trapped 9Be+ ions, Applied Physics B 105, 741 (2011) more

C. Ospelkaus, U. Warring, Y. Colombe, K. R. Brown, J. M. Amini, D. Leibfried, D. J. Wineland (2011): Microwave quantum logic gates for trapped ions, Nature 476, 181 (2011)  | file | more

K. R. Brown, A. C. Wilson, Y. Colombe, C. Ospelkaus, A. M. Meier, E. Knill, D. Leibfried, D. J. Wineland (2011): Single-qubit gate error below 10-4 in a trapped ion, Phys. Rev. A 84, 030303 (2011)  | file | more

K. R. Brown, C. Ospelkaus, Y. Colombe, A. C. Wilson, D. Leibfried, D. J. Wineland (2011): Coupled quantized mechanical oscillators, Nature 471, 196 (2011)  | file | more

R. B. Blakestad, C. Ospelkaus, A. P. VanDevender, J. H. Wesenberg, M. J. Biercuk, D. Leibfried, and D. J. Wineland (2011): Near-ground-state transport of trapped-ion qubits through a multidimensional array, Phys. Rev. A 84, 032314 (2011)  | file | more

H. Uys, M. J. Biercuk, A. P. VanDevender, C. Ospelkaus, D. Meiser, R. Ozeri, J. J. Bollinger (2010): Decoherence due to Elastic Rayleigh Scattering, Physical Review Letters 105, 200401 (2010)  | file | more

J. M. Amini, H. Uys, J. H. Wesenberg, S. Seidelin, J. Britton, J. J. Bollinger, D. Leibfried, C. Ospelkaus, A. P. VanDevender, D. J. Wineland (2010): Towards scalable ion traps for quantum information processing, New Journal of Physics 12, 033031 (2010)  | file | more

D. R. Leibrandt, J. Labaziewicz, R. J. Clark, I. L. Chuang, R. J. Epstein, C. Ospelkaus, J. H. Wesenberg, J. J. Bollinger, D. Leibfried, D. J. Wineland, D. Stick, J. Sterk, C. Monroe, C.-S. Pai, Y. Low, R. Frahm, R. E. Slusher (2009): Demonstration of a scalable, multiplexed ion trap for quantum information processing, Quantum Information & Computation 11 & 12, 0901 (2009)  | file | more

R. B. Blakestad, C. Ospelkaus, A. P. VanDevender, J. M. Amini, J. Britton, D. Leibfried, D. J. Wineland (2009): High-Fidelity Transport of Trapped-Ion Qubits through an X-Junction Trap Array, Physical Review Letters 102, 153002 (2009)  | file | more

C. Ospelkaus, C. E. Langer, J. M. Amini, K. R. Brown, D. Leibfried, D. J. Wineland (2008): Trapped-Ion Quantum Logic Gates Based on Oscillating Magnetic Fields, Physical Review Letters 101, 090502 (2008)  | file | more

C. Ospelkaus, S. Ospelkaus (2008): Heteronuclear quantum gas mixtures, Journal of Physics B: Atomic, Molecular and Optical Physics 41, 203001 (2008)  | file | more

F. Deuretzbacher, K. Plassmeier, D. Pfannkuche, F. Werner, C. Ospelkaus, S. Ospelkaus, K. Sengstock, K. Bongs (2008): Heteronuclear molecules in an optical lattice: Theory and experiment, Physical Review A 77, 032726  | file | more

M. Cramer, S. Ospelkaus, C. Ospelkaus, K. Bongs, K. Sengstock, J. Eisert (2008): Do Mixtures of Bosonic and Fermionic Atoms Adiabatically Heat Up in Optical Lattices?, Physical Review Letters 100, 140409 (2008)  | file | more

D. Leibfried, E. Knill, C. Ospelkaus, D. J. Wineland (2007): Transport quantum logic gates for trapped ions, Physical Review A 76, 032324 (2007)  | file | more

S. Ospelkaus, C. Ospelkausa, R. Dinter, J. Fuchs, M. Nakat, K. Sengstock, K. Bongs (2007): Degenerate K–Rb Fermi–Bose gas mixtures with large particle numbers, Journal of Modern Optics 54, 661 (2007) more

C. Ospelkaus, S. Ospelkaus, K. Sengstock, K. Bongs (2006): Interaction-Driven Dynamics of 40K-87Rb Fermion-Boson Gas Mixtures in the Large-Particle-Number Limit, Physical Review Letters 96, 020401 (2006)  | file | more

C. Ospelkaus, S. Ospelkaus, L. Humbert, P. Ernst, K. Sengstock, K. Bongs  (2006): Ultracold Heteronuclear Molecules in a 3D Optical Lattice, Physical Review Letters 97, 120402 (2006)  | file | more

S. Ospelkaus, C. Ospelkaus, L. Humbert, K. Sengstock, K. Bongs  (2006): Tuning of Heteronuclear Interactions in a Degenerate Fermi-Bose Mixture, Physical Review Letters 97, 120403 (2006)  | file | more

S. Ospelkaus, C. Ospelkaus, O. Wille, M. Succo, P. Ernst, K. Sengstock, K. Bongs  (2006): Localization of Bosonic Atoms by Fermionic Impurities in a Three-Dimensional Optical Lattice, Physical Review Letters 96, 180403 (2006)  | file | more

C. Ospelkaus, U. Rasbach, A. Weis (2003): Measurement of the forbidden tensor polarizability of Cs using an all-optical Ramsey resonance technique, Physical Review A 67, 011402(R) (2003)  | file | more

PhD Thesis

M. Wahnschaffe (2016): Engineered microwave control for trapped ions, Dissertation, Leibniz Universität Hannover more

C. Ospelkaus (2006): Fermi-Bose mixtures - From mean-field interactions to ultracold chemistry, Dissertation, Universität Hamburg  | file | more