Newsletter – October 2019

Newsletter – October 2019

The COST Action has an ongoing open call for Short term scientific missions (STSMs) which gives support to early career researchers for spending some time (at least one week) in a different lab in order to learn new techniques and methods and discuss mutual approaches.

Dear all,

The COST Action has an ongoing open call for Short term scientific missions (STSMs) which gives support to early career researchers for spending some time (at least one week) in a different lab in order to learn new techniques and methods and discuss mutual approaches. We would like to particularly invite female ion trappers from all associated countries and ion trappers from the central and eastern European countries to make use of this tool. Useless to say, that if you are a female ion trapper from central or eastern Europe, the world is at your feet! Please submit your scientific projects to or contact the STSM coordinator Lukas Klosowski.

Best regards,
Your editorial team


Regarding our colleagues from the UK, COST informs us that: Brexit Update: UK government has extended the Underwrite Guarantee of Horizon 2020 to COST. The UK government has committed to provide funding for eligible UK participation in COST Actions until the end of 2020 in case of a no-deal Brexit.

Special Issue in Applied Sciences (Open Access Journal): “Optical Trapping of Ions and Atoms 2020: Novel Advances and Prospects”, now open for submissions. Guest Editors: Tobias Schätz, Vladan Vuletic, Michael Drewsen, Jonathan Home, Leon Karpa. Details

EPJ QT special issue: “Quantum Metrology & Quantum Enhanced Measurement”. Submissions are accepted from now until 30 June 2021. Details


IQuMS 2019 – the “International conference on quantum Metrology and Sensing” will be held in Paris, France from 9 to 13 December 2019. LINK

Early Career Conference on Trapped Ions, to be held at CERN, Geneva 13-17 January 2020. LINK

DPG Spring Meeting “Atomic Physics” 9 – 13 March 2020 in Hannover. LINK

European Conference on Trapped Ions (ECTI), Djurönäset, Sweden, 13-17 July 2020


Two postdoc positions are available at the Stefan Meyer Institute for Subatomic Physics of the Austrian Academy of Sciences in Vienna on physics with trapped charged particles for antihydrogen production (ASACUSA collaboration). LINK1 and LINK2

A postdoc position at Laboratoire de Physique des Lasers (Villetaneuse, close to Paris) on Ultrastable frequency transfer through optical fiber links in a Euramet project. Details

The University of Sydney invites applications for a Postdoctoral Research Associate to participate in a research programme investigating quantum simulation using the trapped-ion architecture, especially for the simulation of chemical processes. The successful candidate will develop new theoretical techniques for quantum simulation of a range of chemical and physical processes and collaborate with experimentalists to enable the experimental demonstration of new methods. For details and to apply, visit Applications close on 14 November 2019.

One open PhD position would be for Quantum Simulation with large beryllium ion crystals in a Penning trap. Interested students should please contact Robert Wolf () and Michael Biercuk ().

Furthermore, we have two open PhD positions at our Paul trap experiments with ytterbium ions on Quantum Control and Quantum Simulation, please contact Cornelius Hempel () and Michael Biercuk ().

Ultracold Quantum Molecular Systems Group at the Faculty of Physics of the University of Warsaw in Poland – – is looking for two postdoctoral researchers in the field of theoretical AMO physics / quantum chemistry. Please contact Michał Tomza ().

The University of Düsseldorf offers 5-year independent junior research groups. Details

The European Training Network “MoSaiQC” is looking for a PhD candidate to become an expert on optical atomic clocks. Based at TOPTICA in Munich, the work will be done in close collaboration with the University of Birmingham. Details

A postdoctoral fellowship at Georgetown University is available in the field of reservoir engineering in ion traps in the group of Jim Freericks. E-mail for further information.

Postdoc and PhD positions on projects in Quantum Networking and Quantum Computing with trapped ions are available at the University of Oxford, please contact Chris Ballance.

The University of Kassel, Germany announces an open W2 professorship for Theo­re­ti­cal Ato­mic, Mole­cu­lar and Quan­tum Op­ti­cal Phy­sics – Institute of Physics. Details

2 PostDoc positions (quantum dynamics of Coulomb crystals controlled by optical fields, and quantum logic spectroscopy of bio-relevant molecular ions) are available in the Ion TRap group at Aarhus University. For details please contact Michael Drewsen.

You can also find postdoc positions in frequency metrology, cold atoms and quantum information.


Please sent informations about your publications to:

Capture of an external anion beam into a linear Paul trap
G Cerchiari, S Erlewein, P Yzombard, M Zimmermann and A Kellerbauer
J. Phys. B: At. Mol. Opt. Phys. 52 155003 (2019)

Demonstration of slow light in rubidium vapor using single photons from a trapped ion
J. D. Siverns, J. Hannegan and Q. Quraishi
Science Advances Vol. 5, no. 10, eaav4651, 04 Oct 2019

Heisenberg-scaling measurement protocol for analytic functions with quantum sensor networks
Kevin Qian, Zachary Eldredge, Wenchao Ge, Guido Pagano, Christopher Monroe, J. V. Porto, and Alexey V. Gorshkov
Phys. Rev. A 100, 042304 (2019)

Highly Polarizable Rydberg Ion in a Paul Trap
Gerard Higgins, Fabian Pokorny, Chi Zhang, and Markus Hennrich
Phys. Rev. Lett. 123, 153602 (2019)

Laser-driven production of the antihydrogen molecular ion
Mark C. Zammit, Michael Charlton, Svante Jonsell, James Colgan, Jeremy S. Savage, Dmitry V. Fursa, Alisher S. Kadyrov, Igor Bray, Robert C. Forrey, Christopher J. Fontes, Jeffery A. Leiding, David P. Kilcrease, Peter Hakel, and Eddy Timmermans
Phys. Rev. A 100, 042709 (2019)

Microelectromechanical-System-Based Design of a High-Finesse Fiber Cavity Integrated with an Ion Trap
Moonjoo Lee, Minjae Lee, Seokjun Hong, Klemens Schüppert, Yeong-Dae Kwon, Taehyun Kim, Yves Colombe, Tracy E. Northup, Dong-Il “Dan” Cho, and Rainer Blatt
Phys. Rev. Applied 12, 044052 (2019)

Modular quantum computation in a trapped ion system
Kuan Zhang, Jayne Thompson, Xiang Zhang, Yangchao Shen, Yao Lu, Shuaining Zhang, Jiajun Ma, Vlatko Vedral, Mile Gu & Kihwan Kim
Nature Communications volume 10, Article number: 4692 (2019)

Phonon Pair Creation by Inflating Quantum Fluctuations in an Ion Trap
Matthias Wittemer, Frederick Hakelberg, Philip Kiefer, Jan-Philipp Schröder, Christian Fey, Ralf Schützhold, Ulrich Warring, and Tobias Schaetz
Phys. Rev. Lett. 123, 180502 (2019)

Polarizability assessments of ion-based optical clocks
M. D. Barrett, K. J. Arnold, and M. S. Safronova
Phys. Rev. A 100, 043418 (2019)

Quantum criticality of the transverse-field Ising model with long-range interactions on triangular-lattice cylinders
Jan Koziol, Sebastian Fey, Sebastian C. Kapfer, and Kai Phillip Schmidt
Phys. Rev. B 100, 144411 (2019)

Shuttling of Rydberg Ions for Fast Entangling Operations
J. Vogel, W. Li, A. Mokhberi, I. Lesanovsky, and F. Schmidt-Kaler
Phys. Rev. Lett. 123, 153603 (2019)

Sideband cooling of the radial modes of motion of a single ion in a Penning trap
P. Hrmo, M. K. Joshi, V. Jarlaud, O. Corfield, and R. C. Thompson
Phys. Rev. A 100, 043414 (2019)

Stroboscopic approach to trapped-ion quantum information processing with squeezed phonons
Wenchao Ge, Brian C. Sawyer, Joseph W. Britton, Kurt Jacobs, Michael Foss-Feig, and John J. Bollinger
Phys. Rev. A 100, 043417 (2019)

Superconducting Solenoid System with Adjustable Shielding Factor for Precision Measurements of the Properties of the Antiproton
Jack A. Devlin, Elise Wursten, James A. Harrington, Takashi Higuchi, Pascal E. Blessing, Matthias J. Borchert, Stefan Erlewein, Jannek J. Hansen, Jonathan Morgner, Matthew A. Bohman, Andreas H. Mooser, Christian Smorra, Markus Wiesinger, Klaus Blaum, Yasuyuki Matsuda, Christian Ospelkaus, Wolfgang Quint, Jochen Walz, Yasunori Yamazaki, and Stefan Ulmer
Phys. Rev. Applied 12, 044012 (2019)

Systematic uncertainty due to background-gas collisions in trapped-ion optical clocks
A. M. Hankin, E. R. Clements, Y. Huang, S. M. Brewer, J.-S. Chen, C. W. Chou, D. B. Hume, and D. R. Leibrandt
Phys. Rev. A 100, 033419 (2019)

Training of quantum circuits on a hybrid quantum computer
D. Zhu, N. M. Linke, M. Benedetti, K. A. Landsman, N. H. Nguyen, C. H. Alderete, A. Perdomo-Ortiz, N. Korda, A. Garfoot, C. Brecque, L. Egan, O. Perdomo and C. Monroe
Science Advances Vol. 5, no. 10, eaaw9918, 18 Oct 2019:


Accurately accounting for effects on times-of-flight caused by finite field-transition times during the ejection of ions from a storage trap: A study for TOF and MRTOF mass spectrometry
M. Rosenbusch, P. Schury, M. Wada, S. Iimura, Y. Ito, H. Wollnik

Bridging the Gap Between Many-Body Localization and Quantum Spin Glasses
Louk Rademaker, Dmitry A. Abanin

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

Dynamical mean field theory algorithm and experiment on quantum computers
I. Rungger, N. Fitzpatrick, H. Chen, C. H. Alderete, H. Apel, A. Cowtan, A. Patterson, D. Munoz Ramo, Y. Zhu, N. H. Nguyen, E. Grant, S. Chretien, L. Wossnig, N. M. Linke, R. Duncan

Engineering generalized Gibbs ensembles with trapped ions
Florentin Reiter, Florian Lange, Zala Lenarčič

Higher-order and fractional discrete time crystals in clean long-range interacting systems
Andrea Pizzi, Johannes Knolle, Andreas Nunnenkamp

Hybrid infinite time-evolving block decimation algorithm for long-range multi-dimensional quantum many-body systems
Tomohiro Hashizume, Jad C. Halimeh, Ian P. McCulloch

Kinks and Nanofriction: Structural Phases in Few-Atom Chains
Dorian A. Gangloff, Alexei Bylinskii, Vladan Vuletić

Large orbital magnetic moments of small, free cobalt cluster ions Co+n with n≤9
V Zamudio-Bayer, K Hirsch, A Langenberg, A Ławicki, A Terasaki, B von Issendorff, J T Lau

Logical Performance of 9 Qubit Compass Codes in Ion Traps with Crosstalk Errors
Dripto M. Debroy, Muyuan Li, Shilin Huang, Kenneth R. Brown

Machine learning design of a trapped-ion quantum spin simulator
Yi Hong Teoh, Marina Drygala, Roger G. Melko, Rajibul Islam

Observation of the weak-to-strong transition of quantum measurement in trapped ions
Yiming Pan, Jie Zhang, Eliahu Cohen, Chun-wang Wu, Ping-Xing Chen, Nir Davidson

Paving the way for fundamental physics tests with singly-ionized helium
J. J. Krauth, L. S. Dreissen, C. Roth, E. L. Gründeman, M. Collombon, M. Favier, K. S. E. Eikema

Quantum non-demolition state detection and spectroscopy of single trapped molecules
Mudit Sinhal, Ziv Meir, Kaveh Najafian, Gregor Hegi, Stefan Willitsch

Rotational state-changing collisions between N+2 and Rb at low energies
A. D. Dörfler, E. Yurtsever, P. Villarreal, T. González-Lezana, F. A. Gianturco, S. Willitsch

Scalable quantum computing stabilised by optical tweezers on an ion crystal
Yu-Ching Shen, Guin-Dar Lin

Steering Zitterbewegung in driven Dirac systems — from persistent modes to echoes
Phillipp Reck, Cosimo Gorini, Klaus Richter

Trapping Single Ions and Coulomb Crystals with Light Fields
Leon Karpa