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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: Trapped-Ion Qunatum Information and Simulation

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.

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Article

S. Hannig, J. Mielke, J. A. Fenske, M. Misera, N. Beev, C. Ospelkaus, and P. O. Schmidt (2018): A highly stable monolithic enhancement cavity for second harmonic generation in the ultraviolet, Review of Scientific Instruments 89, 013106 (2018)
DOI: 10.1063/1.5005515

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)
DOI: 10.1016/j.physletb.2017.03.024

C. Smorra, S. Sellner, M. J. Borchert, J. A. Harrington, T. Higuchi, H. Nagahama, T. Tanaka, A. Mooser, G. Schneider, M. Bohman, K. Blaum, Y. Matsuda, C. Ospelkaus, W. Quint, J. Walz, Y. Yamazaki & S. Ulmer (2017): A parts-per-billion measurement of the antiproton magnetic moment, Nature 550, 371–374 (2017)
DOI: 10.1038/nature24048

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)
DOI: 10.1038/ncomms14084

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)
DOI: 10.1063/1.4974736

S. Sellner, M. Besirli, M. Bohman, M. J. Borchert, J. Harrington, T. Higuchi, A. Mooser, H. Nagahama, G. Schneider, C. Smorra, T. Tanaka, K. Blaum, Y. Matsuda, C. Ospelkaus, W. Quint, J. Walz, Y. Yamazaki and S. Ulmer (2017): Improved limit on the directly measured antiproton lifetime, New Journal of Physics 19, 083023 (2017)
DOI: 10.1088/1367-2630/aa7e73

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)
DOI: 10.1063/1.4967493

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)
DOI: 10.1016/j.ijms.2016.10.010

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)
DOI: 10.1140/epjst/e2015-02607-4

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)
DOI: 10.1007/s10751-014-1018-7

Christian Ospelkaus, Ulrich Warring, Yves Colombe (2014): Qubits in der Mikrowelle, Physik in unserer Zeit 45, 72 (2014)
DOI: 10.1002/piuz.201301358

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 (2014): The magnetic moments of the proton and the antiproton, Journal of Physics: Conference Series 488, 012033 (2014)
DOI: 10.1088/1742-6596/488/1/012033

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) weitere Informationen

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). weitere Informationen

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). weitere Informationen

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) weitere Informationen

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)  | Datei | weitere Informationen

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)  | Datei | weitere Informationen

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

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)  | Datei | weitere Informationen

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)  | Datei | weitere Informationen

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)  | Datei | weitere Informationen

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)  | Datei | weitere Informationen

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)  | Datei | weitere Informationen

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)  | Datei | weitere Informationen

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

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  | Datei | weitere Informationen

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)  | Datei | weitere Informationen

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

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) weitere Informationen

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)  | Datei | weitere Informationen

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)  | Datei | weitere Informationen

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)  | Datei | weitere Informationen

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)  | Datei | weitere Informationen

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)  | Datei | weitere Informationen

Proceeding

Teresa Meiners, Malte Niemann, Anna-Greta Paschke, Johannes Mielke, Alexander Idel, Kai Voges, Matthias Borchert, Amado Bautista-Salvador, Stefan Ulmer, Christian Ospelkaus (2017): Towards Quantum Logic Inspired Cooling and Detection for Single (Anti-)Protons, JPS Conf. Proc. 18, 011006 (2017)
DOI: 10.7566/JPSCP.18.011006

Teresa Meiners, Malte Niemann, Anna-Greta Paschke, Matthias Borchert, Alexander Idel, Johannes Mielke, Kai Voges, Amado Bautista-Salvador, Ralf Lehnert, Stefan Ulmer, Christian Ospelkaus (2016): Towards Sympathetic Laser Cooling and Detection of Single (Anti-)Protons, Seventh Meeting on CPT and Lorentz Symmetry (CPT’16) weitere Informationen

PhD Thesis

Anna-Greta Paschke (2017): 9Be+ ion qubit control using an optical frequency comb, Dissertation, Leibniz Universität Hannover

Martina Wahnschaffe (2016): Engineered microwave control for trapped ions, Dissertation, Leibniz Universität Hannover weitere Informationen

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