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Ausgewählte Publikationen

Quantum information science | Cavity quantum electrodynamics | Molecules in strong laser fields

Quantum information science / Trapped ions [top]

Measuring a single atom’s position with extreme sub-wavelength resolution and force measurements in the yoctonewton range [QIS60]

P. H. Huber, P. Barthel, Th. Sriarunothai, G. S. Giri, S. Wolk, and Ch. Wunderlich
arXiv:2407.18670v1

Fast, robust and laser-free universal entangling gates for trapped-ion quantum computing [QIS59]

Markus Nünnerich, Daniel Cohen, Patrick Barthel, Patrick H. Huber, Dorna Niroomand, Alex Retzker, Christof Wunderlich
arXiv:2403.04730

Robust two-qubit gates using pulsed dynamical decoupling [QIS57]

Patrick Barthel, Patrick H. Huber, Jorge Casanova, Iñigo Arrazola, Dorna Niroomand, Theeraphot Sriarunothai, Martin B Plenio and Christof Wunderlich
New Journal of Physics, Volume 25, June 2023

Classical Half-Adder using Trapped-ion Quantum Bits: Towards Energy-efficient Computation [QIS58]

Sagar Silva Pratapsi, Patrick H. Huber, Patrick Barthel, Sougato Bose, Christof Wunderlich, and Yasser Omar
Appl. Phys. Lett. 123, 154003 (2023) (2022)

Realization of a quantum perceptron gate with trapped ions [QIS56]

Patrick H. Huber, J. Haber, P. Barthel, J. J. García-Ripoll, E. Torrontegui, Ch. Wunderlich
arXiv:2111.08977 (2021)

Q-Match: Iterative Shape Matching via Quantum Annealing [QIS55]

M. Seelbach Benker, Z. Lähner, V. Golyanik, Ch. Wunderlich, C. Theobalt, M. Moeller
International Conference on Computer Vision (ICCV) (2021)

Genuine temporal correlations can certify the quantum dimension [QIS54]

C. Spee, H. Siebeneich, T.F. Gloger, P. Kaufmann, M. Johanning, Ch. Wunderlich, M. Kleinmann and O. Gühne
New J. Phys. 22 023028 (2020)

Speeding-up the decision making of a learning agent using an ion trap quantum processor [QIS53]

T. Sriarunothai, S. Wölk, G. S. Giri, N. Friis, V. Dunjko, H. J. Briegel, Ch. Wunderlich
Quantum Sci. Technol.4 015014 (2019)

Distinguishing between statistical and systematic errors in quantum process tomography [QIS55]

S. Wölk, T. Sriarunothai, G. S. Giri, Ch. Wunderlich
New J. Phys. 21 013015 (2019)

Measuring Anomalous Heating in a Planar Ion Trap with Variable Ion-Surface Separation [QIS52]

I. A. Boldin, A. Kraft, Ch. Wunderlich
Physical Review Letters 120, 023201 (2018)

High-fidelity preservation of quantum information during trapped ion transport [QIS51]

P. Kaufmann, T. F. Gloger, D. Kaufmann, M. Johanning, Ch. Wunderlich
Physical Review Letters 120, 010501 (2018)

Radio frequency sideband cooling and sympathetic cooling of trapped ions in a static magnetic field gradient [QIS54]

T. Sriarunothai, G. S. Giri, S. Wölk, Ch. Wunderlich
Journal of Modern Optics 65 5-6, (2017)

Quantum dynamics of trapped ions in a dynamic field gradient using dressed states [QIS50]

S. Wölk and Ch. Wunderlich
New Journal of Physics 19 083021 (2017)

Blueprint for a microwave trapped ion quantum computer [QIS46]

B. Lekitsch, S. Weidt, A. G. Fowler, K. Mølmer, S. J. Devitt, C. Wunderlich, W. K. Hensinger
Science Advances 3 (2017)

Analog Quantum Simulation of (1+1)D Lattice QED with Trapped Ions [QIS49]

D. Yang, G. S. Giri, M. Johanning, Ch. Wunderlich, P. Zoller, P. Hauke
Physical Review A 94 052321 (2016) - Editors' Suggestion

Versatile microwave-driven trapped ion spin system for quantum information processing [QIS47]

Ch. Piltz, Th. Sriarunothai, S. Ivanov, S. Wölk, Ch. Wunderlich
Science Advances 2 e1600093 (2016)

Ultrasensitive Magnetometer using a Single Atom [QIS42]

I. Baumgart, J.-M. Cai, A. Retzker, M. B. Plenio, Ch. Wunderlich
Physical Review Letters 116, 240801 (2016) - Editors' Suggestion

Isospaced Linear Ion Strings [QIS48]

M. Johanning
Applied Physics B 122:71 (2016)

Ion-trajectory analysis for micromotion minimization and the measurement of small forces [QIS44]

T. F. Gloger, P. Kaufmann, D. Kaufmann, M. T. Baig, T. Collath, M. Johanning, Ch. Wunderlich
Physical Review A 92 043421 (2015)

Investigating the emergence of time in stationary states with trapped ions [QIS41]

S. Massar, Ph. Spindel, A. F. Varón, Ch. Wunderlich
Physical Review A 92 030102(R) (2015)

Simplified implementation of the quantum Fourier transform with Ising-type Hamiltonians: Example with ion traps [QIS45]

S. S. Ivanov, M. Johanning, Ch. Wunderlich
arXiv:1503.08806 (2015)

Fault-tolerant Hahn-Ramsey interferometry with pulse sequences of alternating detuning [QIS43]

N. V. Vitanov, T. F. Gloger, P. Kaufmann, D. Kaufmann, Th. Collath, M. T. Baig, M. Johanning and Ch. Wunderlich
Physical Review A 91, 033406 (2015)

State selective detection of hyperfine qubits [QIS38]

S. Wölk, Ch. Piltz, Th. Sriarunothai, and Ch. Wunderlich
J. Phys. B: At. Mol. Opt. Phys. 48, 075101 (2015)

Cooling techniques for trapped ions [QIS40]

D. M. Segal and Ch. Wunderlich
Physics with Trapped Charged Particles, Lectures from the Les Houches Winter School, edited by M. Knoop, N. Madsen, and R. C. Thompson (Imperial College Press, London, 2014), pp. 43-81 | arXiv (2014)

A trapped-ion-based quantum byte with 10⁻⁵ next-neighbour cross-talk [QIS39]

Ch. Piltz, Th. Sriarunothai, A. F. Varón, and Ch. Wunderlich
Nature Communications 5, 4679 (2014)

A planar ion trap chip with integrated structures for an adjustable magnetic field gradient [QIS36]

P. J. Kunert, D. Georgen, L. Bogunia, T. M. Baig, M. A. Baggash, M. Johanning and Ch. Wunderlich
Applied Physics B: Lasers and Optics Vol. 114, 27-36 (2014)

Adiabatic quantum simulation with a segmented ion trap: Application to long-distance entanglement in quantum spin systems [QIS35]

S. Zippilli, M. Johanning, S. M. Giampaolo, Ch. Wunderlich, F. Illuminati
Physical Review A 89, 042308 (2014)

A scalable, fast and multichannel arbitrary waveform generator [QIS37]

M. T. Baig, M. Johanning, A. Wiese, S. Heidbrink, M. Ziolkowski and Ch. Wunderlich
Review of Scientific Instruments 84, 124701 (2013)

Protecting conditional quantum gates by robust dynamical decoupling [QIS34]

Ch. Piltz, B. Scharfenberger, A. Khromova, A. F. Varón, and Ch. Wunderlich
Physical Review Letters 110, 200501 (2013)

Designer Spin Pseudomolecule Implemented with Trapped Ions in a Magnetic Gradient [QIS33]

A. Khromova, Ch. Piltz, B. Scharfenberger, T. F. Gloger, M. Johanning, A. F. Varón, and Ch. Wunderlich
Physical Review Letters 108, 220502 (2012)

Thick-film technology for ultra high vacuum interfaces of micro-structured traps [QIS32]

D. Kaufmann, T. Collath, M. T. Baig, P. Kaufmann, E. Asenwar, M. Johanning and Ch. Wunderlich
Applied Physics B: Lasers and Optics Vol. 107, 935-943 (2012)
http://dx.doi.org/10.1007/s00340-012-4951-7

Designing Spin-Spin Interactions with One and Two Dimensional Ion Crystals in Planar Micro Traps [QIS31]

J. Welzel, A. Bautista-Salvador, C. Abarbanel, V. Wineman-Fisher, Ch. Wunderlich, R. Folman, and F. Schmidt-Kaler
The European Physical Journal D, 1-13 (2011)

Quantum Gates and Memory using Microwave Dressed States [QIS30]

N. Timoney, I. Baumgart, M. Johanning, A. F. Varón, M. B. Plenio, A. Retzker and Ch. Wunderlich
Nature 476, 185–188 (2011)

Quantum gates using electronic and nuclear spins of Yb+ in a magnetic field gradient [QIS29]

K. L. Wang, M. Johanning, M. Feng, F. Mintert and C. Wunderlich
Eur. Phys. J. D. http://dx.doi.org/10.1140/epjd/e2011-20108-2 (2011)

Resonance-enhanced isotope-selective photoionization of YbI for ion trap loading [QIS28]

M. Johanning, A. Braun, D. Eiteneuer, C. Paape, C. Balzer, W. Neuhauser and C. Wunderlich
Applied Physics B: Lasers and Optics 103, 327-338 (2011)

Enhancement of laser cooling by the use of magnetic gradients [QIS27]

A. Albrecht, A. Retzker, C. Wunderlich, and M. B. Plenio
New Journal of Physics 13, 033009 (2011)

Quantum physics: Trapped ion set to quiver [QIS26]

Chr. Wunderlich
Nature 463, 37-39 (2010)

Invited Review Article: Quantum Simulations with Cold Trapped Ions [QIS25]

M. Johanning,A. Varón, Chr. Wunderlich
Journal of Physics B: At. Mol. Opt. Phys. 42, 154009 (2009)

Two-dimensional cluster-state preparation with linear ion traps [QIS24]

H. Wunderlich, Chr. Wunderlich and K. Singer, F. Schmidt-Kahler
Physical Review A 79, 052324 (2009)

Scrutinizing single-qubit quantum channels: Theory and experiment with trapped ions [QIS23a]

Th. Hannemann, Ch. Wunderlich, M. Plesch, M. Ziman, V. Buzek
arXiv:0904.0923v1 [quant-ph]

Quantitative verification of entanglement and fidelities from incomplete measurement data [QIS23]

H. Wunderlich, M. B. Plenio
arXiv:0902.2093v1 [quant-ph]

Individual addressing of trapped ions and coupling a motional and spin states using rf radiation [QIS22]

M. Johanning, A. Braun, N. Timoney, V. Elman, W. Neuhauser and Chr. Wunderlich
Physical Review Letters 102, 073004 (2009)

Error-resistant Single Qubit Gates with Trapped Ions [QIS21]

N. Timoney, V. Elman, S. Glaser, C. Weiß, M. Johanning, W. Neuhauser and Chr. Wunderlich
Physical Review A 77, 052334 (2008)

Trapped Ion Chain as a Neural Network: Error-Resistant Quantum Computation [QIS20]

M. Pons, V. Ahufinger, Chr. Wunderlich, A. Sanpera, S. Braungardt, A. Sen(De), U. Sen and M. Lewenstein
Physical Review Letters 98, 023003 (2007)

Robust state preparation of a single trapped ion by adiabatic passage [QIS19]

Ch. Wunderlich, Th. Hannemann, T. Körber, H. Häffner, Ch. Roos, W. Hänsel, R. Blatt, F. Schmidt-Kaler
Journal of Modern Optics 54 (11), 1541 - 1549 (2007)

Electrodynamically trapped Yb+ ions for quantum information processing [QIS18]

Chr. Balzer, A. Braun, T. Hannemann, Chr. Paape, M. Ettler, W. Neuhauser and Chr. Wunderlich
Physical Review A 73, 041407(Rapid Comm.) (2006)

Simultaneous cooling of axial vibrational modes in a linear ion trap [QIS16]

Ch. Wunderlich, G. Morigi and D. Reiß
Physical Review A 72, 023421 (2005)

Thermally activated hopping of two ions trapped in a bistable potential well [QIS15]

K. Abich, A. Keil, Ch. Wunderlich, W. Neuhauser and P. E. Toschek
Journal of Optics B: Quantum and Semiclass. Opt. 6, S18-S23 (2004)

Quantum measurements and new concepts for experiments with trapped ions [QIS14]

Ch. Wunderlich, Ch. Balzer
Advances in Atomic, Molecular, and Optical Physics Vol. 49, Academic Press, 2003, 295-376 (2003)

Spin resonance with trapped ions [QIS13]

Ch. Wunderlich, Ch. Balzer, Th. Hannemann, F. Mintert, W. Neuhauser, D. Reiß and P.E. Toschek
Journal of Physics B: At. Mol. Opt. Phys. 36, 1063-1072 (2003)

Entanglement and Inhibited Quantum Evolution [QIS12]

P.E. Toschek, Chr. Balzer, Th. Hannemann, Ch. Wunderlich, W. Neuhauser
Journal of Physics B: At. Mol. Opt. Phys. 36, 1049-1061 (2003)

A Relaxation-Free Verification of the Quantum Zeno Paradox on an Individual Atom [QIS11]

Ch. Balzer, Th. Hannemann, D. Reiß, Ch. Wunderlich, W. Neuhauser and P. E. Toschek
Quantum Information Processing, Wiley-VCH, Berlin, 2003, 196-209 (2003)

Spin resonance with trapped ions: experiments and new concepts [QIS10]

K. Abich, Ch. Balzer, T. Hannemann, F. Mintert, W. Neuhauser, D. Reiß, P. E. Toschek and Ch. Wunderlich
Quantum Information Processing, Wiley-VCH, Berlin, 2003, 210-223 (2003)

From spectral relaxation to quantified decoherence [QIS9]

Ch. Balzer, Th. Hannemann, D. Reiß, W. Neuhauser, P. E. Toschek and Ch. Wunderlich
Laser Physics at the Limit, Springer Verlag, Heidelberg-Berlin-New York, 2001, 233-241 (2002)

Conditional spin resonance with trapped ions [QIS8]

Ch. Wunderlich
Laser Physics at the Limit, Springer Verlag, Heidelberg-Berlin-New York, 2001, 261-271. e-Print archive quant-ph/0111158 (2002)

A Relaxationless demonstration of the quantum Zeno paradox on an individual atom [QIS7]

Ch. Balzer, Th. Hannemann, D. Reiß, Ch. Wunderlich, W. Neuhauser and P. E. Toschek
Optics Communications 211, 235-241 (2002)

Self-learning estimation of quantum states [QIS6]

Th. Hannemann, D. Reiß, Ch. Balzer, W. Neuhauser, P. E. Toschek, and Ch. Wunderlich
Physical Review A 65, 050303 – 1-4 (Rapid Comm.) (2002)

Light-induced decoherence in the driven evolution of an atom [QIS5]

Ch. Balzer, Th. Hannemann, D. Reiß, W. Neuhauser, P. E. Toschek, and Ch. Wunderlich
Laser Physics 12, 729-735 (2002)

Raman laser cooling and heating of two trapped Ba+ ions [QIS4]

D. Reiß, K. Abich, W. Neuhauser, Ch. Wunderlich, P. E. Toschek
Physical Review A 65, 053401 – 1-7 (2002)

Ion trap quantum logic using long wavelength radiation [QIS3]

F. Mintert and Ch. Wunderlich
Physical Review Letters 87, 257904 – 1-4 (2001)

What does an observed quantum system reveal to its observer? [QIS2]

P. E. Toschek and Ch. Wunderlich
European Physical Journal D 14, 387-396 (2001)

Evolution of an atom impeded by measurement: The quantum Zeno effect [QIS1]

Ch. Wunderlich, Ch. Balzer, and P. E. Toschek
Zeitschrift für Naturforschung 56 a, 160-164 (2001)

Cavity quantum electrodynamics [top]

Generation of a Schrödinger cat of radiation and observation of its decoherence [QCE5]

S. Haroche, M. Brune, J. M. Raimond, E. Hagley, Ch. Wunderlich, A. Maali, J. Dreyer and X. Maitre
Atomic Physics 15, Zeeman-Effect Centenary, World Scientific Singapore, 1997, 1- 15 (1997)

An experimental study of a Schrödinger's cat with atoms and cavities [QCE4]

X. Maitre, E. Hagley, J. Dreyer, A. Maali, Ch. Wunderlich, M. Brune, J. M. Raimond, and S. Haroche
Journal of Modern Optics 44, Special issue on Quantum state preparation, 2023 – 2032 (1997)

Quantum memory with a single photon in a cavity [QCE3]

X. Maitre, E. Hagley, G. Nogues, Ch. Wunderlich, P. Goy, M. Brune, J. M. Raimond and S. Haroche
Physical Review Letters 79, 769-772 (1997)

Generation of Einstein-Podolsky-Rosen pairs of atoms [QCE2]

E. Hagley, X. Maitre, G. Nogues, Ch. Wunderlich, M. Brune, J. M. Raimond and S. Haroche
Physical Review Letters 79, 1-5 (1997)

Observing the progressive decoherence of the "meter" in a quantum measurement [QCE1]

M. Brune, E. Hagley, J. Dreyer, X. Maitre, A. Maali, Ch. Wunderlich, J. M. Raimond and S. Haroche
Physical Review Letters 77, 4887-4890 (1996)

Molecules in strong laser fields / Excimer molecules [top]

Tunneling through light-induced potentials in Ar2+ [EM11]

Ch. Wunderlich, H. Figger, and T. W. Hänsch
Physical Review A 62, 023401 - 1-14 (2000)

H2+ in strong laser fields – Resolution of photofragments from different vibrational levels [EM10]

K. Sändig, H. Figger, Ch. Wunderlich, and T. W. Hänsch
Laser Spectroscopy, XIV. International Conference, World Scientific, Singapore, 1999, 310-311 (1999)

Dynamics on the ground-state potential surfaces of H3 and its isotopomers from their uv spectra [EM9]

D. Azinovic, R. Bruckmeier, Ch. Wunderlich, and H. Figger, G. Theodorakopoulos and I. D. Petsalakis
Physical Review A 58, 1115 - 1128 (1998)

Tunnel Dissociation of Molecular Ions [EM8]

Ch. Wunderlich, H. Figger, T. W. Hänsch
Laser Spectroscopy, XIII. International Conference, World Scientific, Singapore, 1998, 389-392 (1998)

Light-induced molecular potentials [EM7]

Ch. Wunderlich, H. Figger, T. W. Hänsch
Physical Review Letters 78, 2333-2336 (1997)

Molecular bond-softening revisited [EM6]

Ch. Wunderlich, H. Figger and T. W. Hänsch
Multiphoton Processes 1996, Institute of Physics Publishing, Bristol, 1997, 254-265 (1996)

Ar2+ molecules in intense laser fields [EM5]

Ch. Wunderlich, H. Figger and T. W. Hänsch
Chemical Physics Letters 256, 43-50 (1996)

Enhanced charge transfer to molecular ions by electronic excitation of the target [EM4]

R. Bruckmeier, Ch. Wunderlich and H. Figger
Physical Review A 52, 334-341 (1995)

UV spectra of ArH and ArD as emitted by a neutralized ion beam [EM3]

Ch. Wunderlich, B. Witzel, R. Bruckmeier and H. Figger
Canadian Journal of Physics 72, Special issue in honor of Dr. G. Herzberg, 1236-1240 (1994)

New experimental insight into the ground state potential surface of triatomic hydrogen [EM2]

R. Bruckmeier, Ch. Wunderlich and H. Figger
Physical Review Letters 72, 2550-2553 (1994)

Lifetime measurements on ArH and ArD [EM1]

Ch. Wunderlich, V. Betz, R. Bruckmeier and H.Figger
Journal of Chemical Physics 98, 9362-9371 (1993)

Observation of intermittent behavior in a radio-frequency discharge

Ch. Wunderlich, L. Moorman, and P. M. Koch
Physics Letters A 176, 317-326 (1993)