ITN Newsletter – December 2019

ITN Newsletter – December 2019

New Year, new website: You’ll find all information regarding the COST Action and its events and calls at There is alos the posibility to subscribe to this newsletter. Do not hesitate to forward this address to anyone intrested.

Dear all,

New Year, new website: You’ll find all information regarding the COST Action and its events and calls at There is alos the posibility to subscribe to this newsletter. Do not hesitate to forward this address to anyone intrested.

We wish you a wonderful and exciting New Year with many well-behaved  ions !

Best regards,

Your editorial team


Precision measurements and traps are among the driving forces of the new Max Planck-RIKEN-PTB Center for Time, Constants and Fundamental Symmetries. More details about this new Center are described HERE. Have a look at the website for a detailed description, job offers, and recent publications!

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


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

CAMEL 16, 15-19 March 2020, Bansko, BG

52nd EGAS conference, 6-10 July 2020 in Zagreb, Croatia

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

13th International Workshop on Non-Neutral Plasmas, Milano, Italy, 13-16 July 2020 LINK

27th International Conference on Atomic Physics (ICAP) held in Toronto, Canada, 19-24 July 2020 LINK

CCMI 2020 – Cold and Controlled Molecules and Ions, 6 – 11 September 2020, Durham University, UK, LINK


PhD project in machine learning with anti-hydrogen under a CDT in AI, Machine learning and Advanced Computing LINK

A postdoc position on the development of a portable Sr+ ion optical clock will be opened at NRC, Ottawa, Canada. Details will be published on 22 Jan.

Postdoc position in the group of Tobias Schaetz at the Albert-Ludwigs-University in Freiburg:

Qsim – Experimental Quantum Simulations based on Arrays of Individually Trapped Ions  LINK

Postdoc position in the group of Tobias Schaetz at the Albert-Ludwigs-University in Freiburg:

TIAMO: Trapping Ions, Atoms and Molecules Optically – interaction in the ultra-cold quantum regime LINK

TRIUMF is looking to hire a post-doctoral researcher (in collaboration with MIT), and a research faculty position.  More details can be found in the following links:  LINK1   and LINK2

A 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).  LINK

Assistant Professor in the Quantum Light and Matter group at Durham University. Further details

A PhD position is available in the group of Prof. Stefan Willitsch (University of Basel, Switzerland) on cold ion-molecule hybrid systems. See the group’s website for further information.

Two PhD positions are available on fundamental tests based on precision (frequency comb) spectroscopy of trapped He+ ions, molecular hydrogen and quantum-degenerate meta-stable helium at the Vrije Universiteit Amsterdam, The Netherlands. More information at:

A new PhD position is open at the Physics department of University of Mainz on “Scalable Quantum Computing with Trapped Ions”. More information is available HERE. The successful candidate will work on a cutting-edge experiment aiming at the realization of elementary quantum algorithms based on shuttling trapped-ion qubits in segmented microchip traps. If you are interested, please contact Ulrich Poschinger () and Ferdinand Schmidt-Kaler ().

LaserLaB VU Amsterdam, the Netherlands, has an open PhD position on Doppler-free laser spectroscopy of trapped molecular hydrogen ions. LINK

A new PhD position is open at the Physics department of University of Mainz on “Rydberg Ions for Quantum Computation and Quantum Sensing”. More information is available HERE. The successful candidate will work on the experiment that combines exciting aspects of Rydberg physics with trapped-ion qubits. If you are interested, please contact Ferdinand Schmidt-Kaler ().

We are currently seeking to recruit two motivated and enthusiastic postdoctoral research associates to join the ALPHA collaboration at CERN/Switzerland. LINK

PhD position (3 years), fully funded by  the German Science Foundation (DFG), is available in the

laser molecular spectroscopy group of Otto Dopfer at Technische Universität Berlin, Germany. Details

The Department of Physics at Yale University is inviting applications for a faculty appointment in the area of experimental quantum science. The position is open at all levels. DETAILS

Postdoc and PhD positions on projects in Quantum Computing and Error Correction as well as Quantum Neural Networks with Trapped Ions are available in the Theoretical Quantum Technology Group of Markus Müller at RWTH Aachen and Forschungszentrum Jülich. Please contact Markus Müller for details.

A PhD position in theoretical many-body physics with Rydberg atoms at University Tübingen with Igor Lesanowsky. Please contact directly at

We are looking for a PhD student from a European country for an ITN network. The person will work on one of the coolest QT-Flagship projects ever, building a laser system for a transportable optical Sr-clock. Details. In 10 years optical clocks will be all over the place.

A PhD position in theoretical quantum physics in Quantum dynamics of impurities with long-range impurity-bath interactions. Details

PhD Position, Scientist and Developer at Swabian Instruments. Details

A postdoc position on Ultra-stable frequency laser development for ground tests of the payload of LISA mission at SYRTE, Paris,France. Please contact

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


Please sent informations about your publications to

A single atom noise probe operating beyond the Heisenberg limit
T. Dutta & M. Mukherjee
npj Quantum Information volume 6, Article number: 3 (2020)

Adaptive Bayesian phase estimation for quantum error correcting codes
F Martínez-García, D Vodola and M Müller
2019 New J. Phys. 21 123027

Analog quantum simulation of superradiance and subradiance in trapped ions
R. T. Sutherland
Phys. Rev. A 100, 061405(R) (2019)

Critical Response of a Quantum van der Pol Oscillator
Shovan Dutta and Nigel R. Cooper
Phys. Rev. Lett. 123, 250401 (2019)

Cross-Platform Verification of Intermediate Scale Quantum Devices
Andreas Elben, Benoît Vermersch, Rick van Bijnen, Christian Kokail, Tiff Brydges, Christine Maier, Manoj K. Joshi, Rainer Blatt, Christian F. Roos, and Peter Zoller
Phys. Rev. Lett. 124, 010504 (2020)

Deuteron-to-Proton Mass Ratio from the Cyclotron Frequency Ratio of H+2 to D+ with H+2 in a Resolved Vibrational State
David J. Fink and Edmund G. Myers
Phys. Rev. Lett. 124, 013001 (2020)

Digital-analog quantum algorithm for the quantum Fourier transform
Ana Martin, Lucas Lamata, Enrique Solano, and Mikel Sanz
Phys. Rev. Research 2, 013012 (2020)

Direct decay-energy measurement as a route to the neutrino mass,
J. Karthein, D. Atanasov, K. Blaum, S. Eliseev, P. Filianin, D. Lunney, V. Manea, M. Mougeot, D. Neidherr, Y. Novikov, L. Schweikhard, A.Welker, F. Wienholtz, K. Zuber,
Hyperfine Interact. 240, 61 (2019)

Distance scaling and polarization of electric-field noise in a surface ion trap
Da An, Clemens Matthiesen, Erik Urban, and Hartmut Häffner
Phys. Rev. A 100, 063405 (2019)

Doppler-cooled ions in a compact reconfigurable Penning trap
Brian J. McMahon, Curtis Volin, Wade G. Rellergert, and Brian C. Sawyer
Phys. Rev. A 101, 013408 (2020)

Dual-species, multi-qubit logic primitives for Ca+/Sr+ trapped-ion crystals
C. D. Bruzewicz, R. McConnell, J. Stuart, J. M. Sage & J. Chiaverini
npj Quantum Information volume 5, Article number: 102 (2019)

Dynamics of an unbalanced two-ion crystal in a Penning trap for application in optical mass spectrometry
M. J. Gutiérrez, J. Berrocal, F. Domínguez, I. Arrazola, M. Block, E. Solano, and D. Rodríguez
Phys. Rev. A 100, 063415 (2019)

Electron-impact ionization of W5+
V. Jonauskas, A. Kynienė, S. Kučas, S. Pakalka, Š. Masys, A. Prancikevičius, A. Borovik, Jr., M. F. Gharaibeh, S. Schippers, and A. Müller
Phys. Rev. A 100, 062701 (2019)

Fault-tolerant protection of near-term trapped-ion topological qubits under realistic noise sources
A. Bermudez, X. Xu, M. Gutiérrez, S. C. Benjamin, and M. Müller
Phys. Rev. A 100, 062307 (2019)

Fluorescence Detection as a new Diagnostics Tool for Electrostatic Ion Beam Traps,
S. Lechner, P. Fischer, H. Heylen, V. Lagaki, F.M. Maier, P. Plattner, M. Rosenbusch, S. Sels, F. Wienholtz, R.N. Wolf, W. Nörthershäuser, L. Schweikhard, S. Malbrunot-Ettenauer, Hyperfine Interact. 240, 95 (2019)

Frustrated double ionization of argon atoms in strong laser fields
Seyedreza Larimian, Sonia Erattupuzha, Andrius Baltuška, Markus Kitzler-Zeiler, and Xinhua Xie (
Phys. Rev. Research 2, 013021 (2020)

Hyperfine Magnetic Substate Resolved State-to-State Chemistry
Joschka Wolf, Markus Deiß, and Johannes Hecker Denschlag
Phys. Rev. Lett. 123, 253401 (2019)

Impact of ion motion on atom-ion confinement-induced resonances in hybrid traps
Vladimir S. Melezhik, Zbigniew Idziaszek, and Antonio Negretti
Phys. Rev. A 100, 063406 (2019)

Improved estimate of the collisional frequency shift in Al+ optical clocks
Jack Davis, Pierre Dubé, and Amar C. Vutha
Phys. Rev. Research 1, 033137 (2019)

Ion generation and loading of a Penning trap using pulsed laser ablation
Muhammed Sameed, Daniel Maxwell and Niels Madsen
New Journal of Physics, Volume 22, January 2020

Many-body localization in spin chains with long-range transverse interactions: Scaling of critical disorder with system size
Andrii O. Maksymov and Alexander L. Burin
Phys. Rev. B 101, 024201 (2020)

Many-body localization in XY spin chains with long-range interactions: An exact-diagonalization study
Sebastian Schiffer, Jia Wang, Xia-Ji Liu, and Hui Hu
Phys. Rev. A 100, 063619 (2019)

Mass measurements of neutron-rich isotopes near N = 20 by in-trap decay with the ISOLTRAP spectrometer,
P. Ascher, N. Althubiti, D. Atanasov, K. Blaum, B. Cakirli, S. Grévy, F. Herfurth, S. Kreim, D. Lunney, V. Manea, D. Neidherr, M. Rosenbusch, L. Schweikhard, A. Welker, F. Wienholtz, R.N. Wolf, K. Zuber,
Phys. Rev. C 100, 014304 (2019)

Measurements of electric quadrupole transition frequencies in 226Ra+
C. A. Holliman, M. Fan, and A. M. Jayich
Phys. Rev. A 100, 062512 (2019)

Off-axis parabolic mirror relay microscope for experiments with ultra-cold matter
Michael Hejduk and Brianna R. Heazlewood
Review of Scientific Instruments 90, 123701 (2019)

One-dimensional quantum many body systems with long-range interactions
Somnath Maity, Utso Bhattacharya and Amit Dutta
2020 J. Phys. A: Math. Theor. 53 013001

Phonon-number-resolving detection of multiple local phonon modes in trapped ions
Ryutaro Ohira, Takashi Mukaiyama, and Kenji Toyoda
Phys. Rev. A 100, 060301(R) (2019)

Protocol for Implementing Quantum Nonparametric Learning with Trapped Ions
Dan-Bo Zhang, Shi-Liang Zhu, and Z. D. Wang
Phys. Rev. Lett. 124, 010506 (2020)

Pulsed production of cold protonium in Penning traps
Sebastian Gerber, Michael Doser, and Daniel Comparat
Phys. Rev. A 100, 063418 (2019)

QEC-value determination for 21Na → 21Ne and 23Mg → 23Na mirror-nuclei decays using high-precision mass spectrometry with ISOLTRAP at the CERN ISOLDE facility,
J. Karthein, D. Atanasov, Blaum, M. Breitenfeldt, V. Bondar, S. George, L. Hayen, D. Lunney, V. Manea, M. Mougeot, D. Neidherr, L. Schweikhard, N. Severijns, A. Welker, F. Wienholtz, R.N. Wolf, K. Zuber,
Phys. Rev. C 100, 015502 (2019)

QED tests with highly charged ions
P Indelicato
2019 J. Phys. B: At. Mol. Opt. Phys. 52 232001

Quantum bridges in phase space: interference and nonclassicality in strong-field enhanced ionisation
H Chomet, D Sarkar and C Figueira de Morisson Faria
2019 New J. Phys. 21 123004

Robust and Resource-Efficient Microwave Near-Field Entangling 9Be+ Gate
G. Zarantonello, H. Hahn, J. Morgner, M. Schulte, A. Bautista-Salvador, R. F. Werner, K. Hammerer, and C. Ospelkaus
Phys. Rev. Lett. 123, 260503 (2019)

Rotationally inelastic processes of ${{rm{C}}}_{2}^{-}$ (${}^{2}{{rm{Sigma }}}_{g}^{+}$) colliding with He (1 S) at low temperatures: ab initio interaction potential, state changing rates and kinetic modelling
B P Mant, F A Gianturco, L González-Sánchez, E Yurtsever and R Wester
2020 J. Phys. B: At. Mol. Opt. Phys. 53 025201

Shortcuts to adiabaticity: Concepts, methods, and applications
D. Guéry-Odelin, A. Ruschhaupt, A. Kiely, E. Torrontegui, S. Martínez-Garaot, and J. G. Muga
Rev. Mod. Phys. 91, 045001

Steady-state force sensing with single trapped ion
Peter A Ivanov
2020 Phys. Scr. 95 025103

Strong Coupling of a Single Ion to an Optical Cavity
Hiroki Takahashi, Ezra Kassa, Costas Christoforou, and Matthias Keller
Phys. Rev. Lett. 124, 013602 (2020)

The mixed quantum Rabi model
Liwei Duan, You-Fei Xie & Qing-Hu Chen
Scientific Reports volume 9, Article number: 18353 (2019)

Toward convergence of effective-field-theory simulations on digital quantum computers
O. Shehab, K. Landsman, Y. Nam, D. Zhu, N. M. Linke, M. Keesan, R. C. Pooser, and C. Monroe
Phys. Rev. A 100, 062319 (2019)

Viewpoint: Quantum Computer Crosscheck
Steven Flammia, Centre for Engineered Quantum Systems, School of Physics, The University of Sydney, Sydney, Australia
January 6, 2020• Physics 13, 3


Coherent rotations of qubits within a multi-species ion-trap quantum computer
Martin W. van Mourik, Esteban A. Martinez, Lukas Gerster, Pavel Hrmo, Thomas Monz, Philipp Schindler, Rainer Blatt

Collisional-radiative modeling of the 5p−5s spectrum of W XIV – W XVI ions
Xiaobin Ding, Fengling Zhang, Yang Yang, Ling Zhang, Fumihiro Koike, Izumi Murakami, Daiji Kato, Hiroyuki A Sakaue, Nobuyuki Nakamura, Chenzhong Dong

Eliminating Leakage Errors in Hyperfine Qubits
D. Hayes, D. Stack, B. Bjork, A. C. Potter, C. H. Baldwin, R. P. Stutz

Feasibility of the ion-trap simulation of a class of non-equilibrium phase transitions
Alba Ramos, Cecilia Cormick

Indistinguishable photons from a trapped-ion quantum network node
M. Meraner, A. Mazloom, V. Krutyanskiy, V. Krcmarsky, J. Schupp, D. Fioretto, P. Sekatski, T. E. Northup, N. Sangouard, B. P. Lanyon

Many-Body Dephasing in a Trapped-Ion Quantum Simulator
Harvey B. Kaplan, Lingzhen Guo, Wen Lin Tan, Arinjoy De, Florian Marquardt, Guido Pagano, Christopher Monroe

Measurement-free preparation of grid states
Jacob Hastrup, Kimin Park, Jonatan Bohr Brask, Radim Filip, Ulrik Lund Andersen

Observation of Domain Wall Confinement and Dynamics in a Quantum Simulator
W. L. Tan, P. Becker, F. Liu, G. Pagano, K. S. Collins, A. De, L. Feng, H. B. Kaplan, A. Kyprianidis, R. Lundgren, W. Morong, S. Whitsitt, A. V. Gorshkov, C. Monroe

Optimised fast gates for quantum computing with trapped ions
Evan P. G. Gale, Zain Mehdi, Lachlan M. Oberg, Alexander K. Ratcliffe, Simon A. Haine, Joseph J. Hope

Programmable Quantum Simulations of Spin Systems with Trapped Ions
C. Monroe, W. C. Campbell, L. -M. Duan, Z. -X. Gong, A. V. Gorshkov, P. Hess, R. Islam, K. Kim, G. Pagano, P. Richerme, C. Senko, N. Y. Yao

Quantum Control via Enhanced Shortcuts to Adiabaticity
Chris Whitty, Anthony Kiely, Andreas Ruschhaupt

Quantum information scrambling in a trapped-ion quantum simulator with tunable range interactions
Manoj K. Joshi, Andreas Elben, Benoît Vermersch, Tiff Brydges, Christine Maier, Peter Zoller, Rainer Blatt, Christian F. Roos

Realization of two-dimensional crystal of ions in a monolithic Paul trap
Ye Wang, Mu Qiao, Zhengyang Cai, Kuan Zhang, Naijun Jin, Pengfei Wang, Wentao Chen, Chunyang Luan, Haiyan Wang, Yipu Song, Dahyun Yum, Kihwan Kim

Shuttling-Based Trapped-Ion Quantum Information Processing
V. Kaushal, B. Lekitsch, A. Stahl, J. Hilder, D. Pijn, C. Schmiegelow, A. Bermudez, M. Müller, F. Schmidt-Kaler, U. Poschinger

Variational quantum state preparation via quantum data buses
V. V. Kuzmin, P. Silvi

Weak-value magnetometry for precision tests of fundamental physics
Sounok Ghosh, Leong-Chuan Kwek, Daniel R. Terno, Sai Vinjanampathy

Copyright 2019 ITN | Published on behalf of the COST Action Trapped Ions: Progress in classical and quantum applications
Editorial team: Alejandro Bermudez, Martina Knoop

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