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Scientific Coordinator

Postal Address
Max Planck Institute for Nuclear Physics
P.O. Box 10 39 80
69029 Heidelberg
Visitor Address
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Saupfercheckweg 1
Building: Gentner lab,
room 134
69117 Heidelberg

 

Max Planck-RIKEN-PTB Center for

Time, Constants and Fundamental Symmetries

Publications

2022

Direct measurement of the 3He+ magnetic moments
A. Schneider, B. Sikora, S. Dickopf, M. Müller, N. S. Oreshkina, A. Rischka, I. A. Valuev, S. Ulmer, J. Walz, Z. Harman, C. H. Keitel, A. Mooser & K. Blaum
Nature (2022) externer Link

A 16-parts-per-trillion measurement of the antiproton-to-proton charge–mass ratio
M. J. Borchert, J. A. Devlin, S. R. Erlewein, M. Fleck, J. A. Harrington, T. Higuchi, B. M. Latacz, F. Voelksen, E. J. Wursten, F. Abbass, M. A. Bohman, A. H. Mooser, D. Popper, M. Wiesinger, C. Will, K. Blaum, Y. Matsuda, C. Ospelkaus, W. Quint, J. Walz, Y. Yamazaki, C. Smorra & S. Ulmer
Nature 601, 53–57 (2022) externer Link

2021

Algorithmic Ground-State Cooling of Weakly Coupled Oscillators Using Quantum Logic
S. A. King, L. J. Spieß, P. Micke, A. Wilzewski, T. Leopold, J. R. C. López-Urrutia, and P. O. Schmidt
Phys. Rev. X 11, 041049 (2021) externer Link | arXiv:2102.12427 externer Link

Blackbody radiation shift in strontium lattice clocks revisited
Ch. Lisdat, S. Dörscher, I. Nosske, and U. Sterr
Phys. Rev. Res. 3, L042036 (2021) externer Link

Lifetime of the 2F7/2 Level in Yb+ for Spontaneous Emission of Electric Octupole Radiation
R. Lange, A. A. Peshkov, N. Huntemann, Chr. Tamm, A. Surzhykov, and E. Peik
Phys. Rev. Lett. 127, 213001 (2021) externer Link

A digital feedback system for advanced ion manipulation techniques in Penning traps
J. Herkenhoff, M. Door, P. Filianin, W. Huang, K. Kromer, D. Lange, R. X. Schüssler, C. Schweiger, S. Eliseev, and K. Blaum
Rev. Sci. Instrum. 92, 103201 (2021) externer Link

Sympathetic cooling of a trapped proton mediated by an LC circuit
M. Bohman, V. Grunhofer, C. Smorra, M. Wiesinger, C. Will, M. J. Borchert, J. A. Devlin, S. Erlewein, M. Fleck, S. Gavranovic, J. Harrington, B. Latacz, A. Mooser, D. Popper, E. Wursten, K. Blaum, Y. Matsuda, C. Ospelkaus, W. Quint, J. Walz, S. Ulmer & BASE Collaboration
Nature 596, 514–518 (2021) externer Link

Direct Q-Value Determination of the β Decay of 187Re
P. Filianin, C. Lyu, M. Door, K. Blaum, W. J. Huang, M. Haverkort, P. Indelicato, C. H. Keitel, K. Kromer, D. Lange, Y. N. Novikov, A. Rischka, R. X. Schüssler, Ch. Schweiger, S. Sturm, S. Ulmer, Z. Harman, and S. Eliseev
Phys. Rev. Lett. 127, 072502 (2021) externer Link

Tank-Circuit Assisted Coupling Method for Sympathetic Laser Cooling
B. Tu, F. Hahne, I. Arapoglou, A. Egl, F. Heiße, M. Höcker, C. König, J. Morgner, T. Sailer, A. Weigel, R. Wolf, and S. Sturm
Adv. Quantum Technol. 4, 2100029 (2021) externer Link

Sensitivity to new physics of isotope-shift studies using the coronal lines of highly charged calcium ions
N.-H. Rehbehn, M. K. Rosner, H. Bekker, J. C. Berengut, P. O. Schmidt, S. A. King, P. Micke, M. F. Gu, R. Müller, A. Surzhykov, and J. R. Crespo López-Urrutia
Phys. Rev. A 103, L040801 (2021) externer Link

XUV frequency comb production with an astigmatism-compensated enhancement cavity
J. Nauta, J.-H. Oelmann, A. Borodin, A. Ackermann, P. Knauer, I. S. Muhammad, R. Pappenberger, T. Pfeifer, and J. R. Crespo López-Urrutia
Optics Express 29, 2624 (2021) externer Link

Improved limits for violations of local position invariance from atomic clock comparisons
R. Lange, N. Huntemann, J. M. Rahm, C. Sanner, H. Shao, B. Lipphardt, Chr. Tamm, S. Weyers, E. Peik
Phys. Rev. Lett. 126, 011102 (2021) externer Link

Constraints on the Coupling between Axionlike Dark Matter and Photons Using an Antiproton Superconducting Tuned Detection Circuit in a Cryogenic Penning Trap
J. A. Devlin, M. J. Borchert, S. Erlewein, M. Fleck, J. A. Harrington, B. Latacz, J. Warncke, E. Wursten, M. A. Bohman, A. H. Mooser, C. Smorra, M. Wiesinger, C. Will, K. Blaum, Y. Matsuda, C. Ospelkaus, W. Quint, J. Walz, Y. Yamazaki, and S. Ulmer
Phys. Rev. Lett. 126, 041301 (2021) externer Link

Perspectives on testing fundamental physics with highly charged ions in Penning traps
K. Blaum, S. Eliseev and S. Sturm
Quantum Sci. Technol. 6, 014002 (2021) externer Link

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2020

Precision Measurements of the Fundamental Properties of the Proton and Antiproton
C. Smorra and A. Mooser
J. Phys.: Conf. Ser. 1412, 032001 (2020) externer Link

Search for transient variations of the fine structure constant and dark matter using fiber-linked optical atomic clocks
B. M. Roberts, P. Delva, A. Al-Masoudi, A. Amy-Klein, C. Baerentsen, C. F. A. Baynham, E. Benkler, S. Bilicki, S. Bize, W. Bowden, J. Calvert, V. Cambier, E. Cantin, E. A. Curtis, S. Dörscher, M. Favier, F. Frank, P. Gill, R. M. Godun, G. Grosche, C. Guo, A. Hees, I. R. Hill, R. Hobson, N. Huntemann, J. Kronjäger, S. Koke, A. Kuhl, R. Lange, T. Legero, B. Lipphardt, C. Lisdat, J. Lodewyck, O. Lopez, H. S. Margolis, H. Alvarez-Martinez, F. Meynadier, F. Ozimek, E. Peik, P.-E. Pottie, N. Quintin, C. Sanner, L. De Sarlo, M. Schioppo, R. Schwarz, A. Silva, U. Sterr, Chr. Tamm, R. LeTargat, P. Tuckey, G. Vallet, T. Waterholter, D. Xu, P. Wolf
New. J. Phys. 22, 093010 (2020) externer Link

Dynamical decoupling of laser phase noise in compound atomic clocks
S. Dörscher, A. Al-Masoudi, M. Bober, R. Schwarz, R. Hobson, U. Sterr & C. Lisdat
Commun. Phys. 3, 185 (2020) externer Link

Coherent Excitation of the Highly Forbidden Electric Octupole Transition in 172Yb+
H. A. Fürst, C.-H. Yeh, D. Kalincev, A. P. Kulosa, L. S. Dreissen, R. Lange, E. Benkler, N. Huntemann, E. Peik, and T. E. Mehlstäubler
Phys. Rev. Lett. 125, 163001 (2020) externer Link

Coherent Suppression of Tensor Frequency Shifts through Magnetic Field Rotation
R. Lange, N. Huntemann, C. Sanner, H. Shao, B. Lipphardt, Chr. Tamm, and E. Peik
Phys. Rev. Lett. 125, 143201 (2020) externer Link

Penning trap mass measurements of the deuteron and the HD+ molecular ion
S. Rau, F. Heiße, F. Köhler-Langes, S. Sasidharan, R. Haas, D. Renisch, C. E. Düllmann, W. Quint, S. Sturm & K. Blaum
Nature 585, 43–47 (2020) externer Link

Long term measurement of the 87Sr clock frequency at the limit of primary Cs clocks
R. Schwarz, S. Dörscher, A. Al-Masoudi, E. Benkler, T. Legero, U. Sterr, S. Weyers, J. Rahm, B. Lipphardt, and C. Lisdat
Phys. Rev. Research 2, 033242 (2020) externer Link

Electronic Bridge Excitation in Highly Charged 229Th Ions
P. V. Bilous, H. Bekker, J. C. Berengut, B. Seiferle, L. von der Wense, P. G. Thirolf, T. Pfeifer, J. R. Crespo López-Urrutia, and A. Pálffy
Phys. Rev. Lett. 124, 192502 (2020) externer Link

Detection of metastable electronic states by Penning trap mass spectrometry
R. X. Schüssler, H. Bekker, M. Braß, H. Cakir, J. R. Crespo López-Urrutia, M. Door, P. Filianin, Z. Harman, M. W. Haverkort, W. J. Huang, P. Indelicato, C. H. Keitel, C. M. König, K. Kromer, M. Müller, Y. N. Novikov, A. Rischka, C. Schweiger, S. Sturm, S. Ulmer, S. Eliseev & K. Blaum
Nature 581, 42–46 (2020) externer Link

100 MHz frequency comb for low-intensity multi-photon studies: intra-cavity velocity-map imaging of xenon
J. Nauta, J.-H. Oelmann, A. Ackermann, P. Knauer, R. Pappenberger, A. Borodin, I. S. Muhammad, H. Ledwa, T. Pfeifer, and J. R. Crespo López-Urrutia
Opt. Lett. 45, 2156-2159 (2020) externer Link

Mass-Difference Measurements on Heavy Nuclides with an eV/c2 Accuracy in the PENTATRAP Spectrometer
A. Rischka, H. Cakir, M. Door, P. Filianin, Z. Harman, W. J. Huang, P. Indelicato, C. H. Keitel, C. M. König, K. Kromer, M. Müller, Y. N. Novikov, R. X. Schüssler, Ch. Schweiger, S. Eliseev, and K. Blaum
Phys. Rev. Lett. 124, 113001 (2020) externer Link

Coherent laser spectroscopy of highly charged ions using quantum logic
P. Micke, T. Leopold, S. A. King, E. Benkler, L. J. Spieß, L. Schmöger, M. Schwarz, J. R. Crespo López-Urrutia and P. O. Schmidt
Nature 578, 60-65 (2020) externer Link

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2019

Detection of the 5p – 4f orbital crossing and its optical clock transition in Pr9+
H. Bekker, A. Borschevsky, Z. Harman, C. H. Keitel, T. Pfeifer, P. O. Schmidt, J. R. Crespo López-Urrutia & J. C. Berengut
Nat. Commun. 10, 5651 (2019) externer Link

Direct limits on the interaction of antiprotons with axion-like dark matter
C. Smorra, Y. V. Stadnik, P. E. Blessing, M. Bohman, M. J. Borchert, J. A. Devlin, S. Erlewein, J. A. Harrington, T. Higuchi, A. Mooser, G. Schneider, M. Wiesinger, E. Wursten, K. Blaum, Y. Matsuda, C. Ospelkaus, W. Quint, J. Walz, Y. Yamazaki, D. Budker & S. Ulmer
Nature 575, 310-314 (2019) externer Link

Superconducting Solenoid System with Adjustable Shielding Factor for Precision Measurements of the Properties of the Antiproton
J. A. Devlin, E. Wursten, J. A. Harrington, T. Higuchi, P. E. Blessing, M. J. Borchert, S. Erlewein, J. J. Hansen, J. Morgner, M. A. Bohman, A. H. Mooser, C. Smorra, M. Wiesinger, K. Blaum, Y. Matsuda, C. Ospelkaus, W. Quint, J. Walz, Y. Yamazaki, and S. Ulmer
Phys. Rev. Applied 12, 044012 (2019) externer Link

Application of the Continuous Stern-Gerlach Effect for Laser Spectroscopy of the 40Ar13+ Fine Structure in a Penning Trap
A. Egl, I. Arapoglou, M. Höcker, K. König, T. Ratajczyk, T. Sailer, B. Tu, A. Weigel, K. Blaum, W. Nörtershäuser, and S. Sturm
Phys. Rev. Lett. 123, 123001 (2019) externer Link

A Novel Penning Trap Design for the High Precision Measurement of the 3He2+ Nuclear Magnetic Moment
A. Schneider, A. Mooser, A. Rischka, K. Blaum, S. Ulmer, J. Walz
Ann. Phys. (Berlin) 531, 1800485 (2019) externer Link