ITN Newsletter – May 2024

Foreword

We’re truly grateful for the ongoing engagement from the iontrap community, who keep the conversation lively by sharing their latest news, events, jobs, publications, and editorials. We are thrilled to present the new ITN-Website ( https://iontraps.net/ ) where you can download the current and archived issues and send us your submissions and events directly using the forms. Please continue to send us your thoughts; your contributions make our newsletter vibrant and enriching.

Events

Workshop on Quantum Mixtures of Atoms and Ions, Amsterdam will take place rom June 11-13, 2024. The conference aims to bring together experts in the field of cold and ultracold mixtures of atoms and ions and will cover various applications of these systems, including quantum chemistry, quantum impurity physics, ultracold buffer gas cooling, Feshbach resonances, quantum information and spin dynamics. Details

Quantum meets ’24 is a co-created collection of free events presented by Quantum Delta NL from June 11-13, 2024 in Amsterdam, the Netherlands. Details

55th Conference of the European Group on Atomic Systems (EGAS 55) will take place in Granada (Spain) from June 16th to 20th 2024. Details

Optica Quantum 2.0 Conference and Exhibition, 23 – 27 June 2024, Postillion Hotel & Convention Centre WTC Rotterdam, Netherlands. Details

EFTF 2024, an international conference and exhibition, providing information on recent advances and trends of scientific research and industrial development in the fields of Frequency and Tim, will take place on June 25 – 27 2024, in Neuchâtel, Switzerland. Details

YAO2024 (Young Atom Opticians) conference, organised this year by CESQ at the University of Strasbourg, June 30th to July 5th, 2024. Details

28th Central European Workshop on Quantum Optics (CEWQO),  July 1st – 5th, 2024, in Olomouc, Czech Republic

European Frequency and Time Seminar, is a nonprofit intensive full-week seminar intended to provide education and training with lectures and lab sessions in Besancon, France, from July 1-5, 2024. Details

Early Career Conference in Trapped Ions (ECCTI) 2024
ECCTI is intended to connect a broad community with very diverse scientific goals with common technical challenges. The event will have a focus on Atomic Clocks, Quantum Information & Computation, Quantum Simulation, Quantum Technologies, Antimatter Physics, Precision & Molecular Spectroscopy, and Nuclear Physics. The event will take place from July 7-12, 2024, at the Viktor-Franz-Hess Haus in Austria. Details

ICAP 2024: The 28th International Conference on Atomic Physics, July 14-19, 2024 at the Imperial College, London. Details

QSim 2024, the 2nd Annual Conference on Quantum Simulation in Rhode Island, USA, August 12-16,  2024. The conference will be preceded by a 3-day summer school from August 9-11 at the same location. The focus of the summer school will be on many-body systems, combining both theoretical and numerical techniques with examples from quantum hardware experiments. Details

NIST Time and Frequency Seminar covers precision clocks and oscillators, atomic frequency standards, rf and optical synchronization, optical oscillators, quantum information, optical cooling and heating; making precise frequency, time, phase-noise, and jitter measurements; and establishing measurement accuracy and traceability. It will be held will be held at the Boulder, CO campus from August 13-15 2024. Details

15th International Symposium on Electron Beam Ion Sources and Traps (EBIST2024) will be held on 27-30 August 2024 at the Jan Kochanowski University, Kielce, Poland. Details

North American Conference on Trapped Ions (NACTI), UCLA, August 13-16, 2024

IMEKO 2024, 26-29 August 2024, Hamburg. Details

EBIS 2024 in Kielce in the Holy Cross Mountains (Poland) from August 27 to 30, 2024. Details

HCI-21 Sept 1 – Sept 6, 2024 in Amsterdam. Details

QuTech 2024: Quantum Technology International conference 2024. This third edition will be held in Berlin, from September 6 to September 12 2024.

ECTI 2025, Save the Date: September 8 – 12, 2025 in the Netherlands. More information to follow.

The Greenhorn meeting is a conference, which targets junior researchers (those who are within the first-half of PhD or in the last year of their masters) working in the research areas of quantum optics, nano optics, atomic physics and ultra-cold atomic gases. It will take place fom September 10th – 12th in Siegen. Details

817 Heraeus seminar on “Precision Atomic Physics Experiments to Probe for New Physics“, 23.-27.9.2024 in Bad Honnef. Details

Quantum Physics with Trapped Particles at Monte Verita, close to Ascona, Switzerland, on October 13-18, 2024. Details

Online seminars

Virtual Seminar on Precision Physics and Fundamental Symmetries – an initiative for the precision physics and quantum information community,  every Thursday   LINK

The “Virtual AMO Seminar” (www.amo-seminar.com): Fridays, 7pm (UTC)

The “Quantum Science Seminar” (http://quantumscienceseminar.com/):  on Thursdays, 5 pm

Jobs

A fully funded, 3.5-year PhD position is available in the Ion Trap Cavity-QED and Molecular Physics (ITCM) Group in the Department of Physics & Astronomy at the University of Sussex. The project is within the Quantum Computing and Simulation Hub.
Contact: Prof Matthias Keller (m.k.keller@sussex.ac.uk)
Details
Several PostDoc and PhD positions available at PTB in Braunschweig and Leibniz University Hannover in the Quantum Logic Spectroscopy Group of Piet Schmidt . Topics include laboratory and transportable aluminium ion clocks, multi-ion calcium clock using dynamical decoupling and entanglement, as well as highly charged ion clocks.
Contact: Dr. Piet Schmidt (Piet.Schmidt@quantummetrology.de)

PhD positions available at the University of Padova (Italy) for a new trapped ion experiment. Potential research directions include quantum simulations on ion strings, interfacing of ion traps with photonics chips, and development of surface electrode traps with integrated photonics.
Contact: Dr. Carmelo Mordini (carmelo.mordini@unipd.it)
Details

PhD and postdoc positions available in the group of Tanja Mehlstäubler at PTB, working on optical clocks based on trapped ion Coulomb crystals. Topics include new interrogation protocols for multi-ensemble clocks, quantum-enhanced clock operation, ground-state cooling of mixed-species Coulomb crystals and tests of fundamental physics with precision spectroscopy.
Contact: Prof. Dr. Tanja Mehlstäubler (tanja.mehlstaeubler@quantummetrology.de).
Details

The research group of C. Ospelkaus at the University of Hannover is looking for a postdoctoral research associate on their Penning trap experiment, which aims to implement quantum logic spectroscopy of (anti-)protons for tests of the fundamental CPT symmetry as part of the BASE collaboration.
Contact: Dr. Christian Ospelkaus (christian.ospelkaus@iqo.uni-hannover.de)

A postdoc position is available at the Old Dominion University in Norfolk, Virginia, USA on a project trapping lutetium ions for precision measurements.
Contact: Dr. Matt Grau (mgrau@odu.edu).

two openings for PhD positions in the Molecular Systems group headed by Roland Wester at the University of Innsbruck. One position is part of a research project in collaboration with the University of Bordeaux on classical versus quantum effects in three-body collisions of cold trapped ions, funded through the Austrian Science Fund (FWF). The second position is part of a collaborative project on controlling
trapped charged nanoparticles, funded through the Austrian excellence cluster QuantA.
Contact: Prof. Dr. Roland Wester (roland.wester@uibk.ac.at).
Details

Multiple postdoc positions are available in the NIST Ion Storage Group in Colorado, USA. Topics include quantum simulation and sensing in a Penning trap, trapped-ion quantum computing, trapped-ion optical clocks, and quantum state control and precision spectroscopy of single molecular ions.
Contact: John Bollinger or any of the NIST Ion Storage group staff
Details

The Imperial College Particle Physics Group has a postgraduate studentship available to work on laser measurements of cold exotic helium atoms that contain antiprotons at the new ELENA facility of CERN in Geneva. This allows us to probe the matter-antimatter symmetry and determine the mass ratio between an antiproton and electron. We hope to be relatively flexible with regards to the exact PhD topic depending on the candidate’s interests. The studentship covers a maintenance bursary similar to standard STFC studentships.
Contact: m.hori@imperial.ac.uk

The Ion trap systems team at Infineon is looking for an ion trap development engineer.  This is a full-time, permanent position in Austria with an entry level of 3-5 years.
Details<

Publications

 

Cold trapped molecular ions and hybrid platforms for ions and neutral particles
Markus Deiß, Stefan Willitsch & Johannes Hecker Denschlag
Nature Physics volume 20, pages 713–721 (2024)

Differentiating enantiomers by directional rotation of ions in a mass spectrometer
XIAOYU ZHOU HTTPS://ORCID.ORG/0000-0002-9840-9159, ZHUOFAN WANG, SHUAI LI, XIANLE RONG, JIEXUN BU,
SCIENCE 8 Feb 2024 Vol 383, Issue 6683 pp. 612-618

Dynamic laser ablation loading of a linear Paul trap
Lin Li, Zi Li, Xia Hua and Xin Tong
2024 J. Phys. D: Appl. Phys. 57 315205

Efficient site-resolved imaging and spin-state detection in dynamic two-dimensional ion crystals
Robert N. Wolf, Joseph H. Pham, Julian Y. Z. Jee, Alexander Rischka, and Michael J. Biercuk
Phys. Rev. Applied 21, 054067 (2024)

Fault-Tolerant Code-Switching Protocols for Near-Term Quantum Processors
Friederike Butt, Sascha Heußen, Manuel Rispler, and Markus Müller
PRX Quantum 5, 020345 (2024)

Improved description of trapped ions as a modular electromechanical system
N. Van Horne, M. Mukherjee
Journal: Journal of Applied Physics
J. Appl. Phys. 135, 154401 (2024)

Microgram BaCl2 ablation targets for trapped ion experiments
Noah Greenberg, Akbar Jahangiri Jozani, Collin J. C. Epstein, Xinghe Tan, Rajibul Islam, Crystal Senko
Journal: Review of Scientific Instruments
Rev. Sci. Instrum. 95, 045117 (2024)

Noise characterization of an ultra-stable laser for optical clocks
Zhiyuan Wang, Zhiyu Ma, Wenzhe Wei, Jialu Chang, Jingxuan Zhang, Qiyue Wu, Wenhao Yuan, Ke Deng, Zehuang Lu, Jie Zhang
Journal: Review of Scientific Instruments
Rev. Sci. Instrum. 95, 053002 (2024)

Quantum gates simulation by ions trapped in a linear Paul trap
Basem R. Kazem, Mezher B. Saleh
Journal: AIP Conference Proceedings
AIP Conf. Proc. 3097, 090014 (2024)

Josephson voltage standards as ultra-stable low-noise voltage sources for precision Penning-trap experiments
Editor’s Pick
Special Collection: Advances in Quantum Metrology
A. Kaiser ; S. Dickopf ; M. Door ; R. Behr ; U. Beutel; S. Eliseev; A. Kaushik; K. Kromer ; M. Müller ; L. Palafox ; S. Ulmer ; A. Mooser ; K. Blaum
Author & Article Information
Appl. Phys. Lett. 124, 224002 (2024)

Majorana modes and their Floquet engineering in a trapped-ion system
Ming-Jian Gao, Yu-Peng Ma, and Jun-Hong An
Phys. Rev. B 109, 184518 (2024

Measurement of infrared magic wavelength for an all-optical trapping of 40Ca+ ion clock
Yao Huang, Miao Wang, Zheng Chen, Chengbin Li, Huaqing Zhang, Baolin Zhang, Liyan Tang, Tingyun Shi, Hua Guan and Ke-Lin Gao
2024 New J. Phys. 26 043021

Multi-site integrated optical addressing of trapped ions
Joonhyuk Kwon, William J. Setzer, Michael Gehl, Nicholas Karl, Jay Van Der Wall, Ryan Law, Matthew G. Blain, Daniel Stick & Hayden J. McGuinness
Nature Communications volume 15, Article number: 3709 (2024) Cite

Non-Hermitian CHSH* game with a single trapped-ion qubit
Xiao Song, Teng Liu, Ji Bian, Pengfei Lu, Yang Liu, Feng Zhu and Le Luo
2024 Chinese Phys. Lett.

Phase-stable traveling waves stroboscopically matched for superresolved observation of trapped-ion dynamics
Florian Hasse, Deviprasath Palani, Robin Thomm, Ulrich Warring, and Tobias Schaetz
Phys. Rev. A 109, 053105 (2024)

Photoinduced charge-carrier dynamics in a semiconductor-based ion trap investigated via motion-sensitive qubit transitions
Woojun Lee, Daun Chung, Honggi Jeon, Beomgeun Cho, KwangYeul Choi, SeungWoo Yoo, Changhyun Jung, Junho Jeong, Changsoon Kim, Dong-Il “Dan” Cho, and Taehyun Kim
Phys. Rev. A 109, 043106 – Published 4 April 2024

Quantum-logic-based 25⁢Mg+-27⁢Al+ optical frequency standard for the redefinition of the SI second
[Phys. Rev. Applied 21, 044017 (2024)]
Z.Y. Ma, K. Deng, Z.Y. Wang, W.Z. Wei, P. Hao, H.X. Zhang, L.R. Pang, B. Wang, F.F. Wu, H.L. Liu, W.H. Yuan, J.L. Chang, J.X. Zhang, Q.Y. Wu, J. Zhang, and Z.H. Lu
Phys. Rev. Applied 21, 059901 (2024) – Published 17 May 2024

Quantum thermodynamics of boundary time-crystals
Federico Carollo, Igor Lesanovsky, Mauro Antezza and Gabriele De Chiara
2024 Quantum Sci. Technol. 9 035024

Robustness of the projected squeezed state protocol
B. J. Alexander, J. J. Bollinger, and M. S. Tame
Phys. Rev. A 109, 052614 (2024) –

Self-diffusion in a strongly coupled non-neutral plasma
Marco Baldovin, Grégoire Vallet, Gaëtan Hagel, Emmanuel Trizac, and Caroline Champenois
Phys. Rev. A 109, 043116

Single-shot error correction on toric codes with high-weight stabilizers
Yingjia Lin, Shilin Huang, and Kenneth R. Brown
Phys. Rev. A 109, 052438 (2024) –

Spectral Signatures of Vibronic Coupling in Trapped Cold Ionic Rydberg Systems
Joseph W. P. Wilkinson, Weibin Li, and Igor Lesanovsky
Phys. Rev. Lett. 132, 223401 (2024)

Table-top ion-trap experiment on the stability of intense short bunches in linear hadron accelerators
M. Kuroda, A. Kasagaki, H. Okamoto, and K. Ito
Phys. Rev. Accel. Beams 27, 054201 (2024) –

The CIPM list ‘Recommended values of standard frequencies’: 2021 update
H S Margolis, G Panfilo, G Petit, C Oates, T Ido and S Bize
2024 Metrologia 61 035005   https://doi.org/10.1088/1681-7575/ad3afc

Trapping with seven-fold enhanced efficiency utilizing an autoionizing resonance
Noah Greenberg, Brendan M White, Pei Jiang Low and Crystal Senko

Tripartite quantum Rabi model with trapped Rydberg ions
Thomas J. Hamlyn, Chi Zhang, Igor Lesanovsky, and Weibin Li
Phys. Rev. Research 6, 023223 (2024)

Ultracold chemistry as a testbed for few-body physics
Tijs Karman, Michał Tomza & Jesús Pérez-Ríos
Nature Physics volume 20, pages 722–729 (2024)

Witnessing entanglement in trapped-ion quantum error correction under realistic noise
Andrea Rodriguez-Blanco, Farid Shahandeh, and Alejandro Bermudez
Phys. Rev. A 109, 052417 (2024)

Preprints

Analysis of ion chain sympathetic cooling and gate dynamics
Authors: Aditya Paul, Crystal Noel

Benchmarking bosonic modes for quantum information with randomized displacements
Authors: Christophe H. Valahu, Tomas Navickas, Michael J. Biercuk, Ting Rei Tan

Bias-field digitized counterdiabatic quantum optimization
Authors: Alejandro Gomez Cadavid, Archismita Dalal, Anton Simen, Enrique Solano, Narendra N. Hegade

Characterization of ion-trap-induced ac-magnetic fields
Authors: Manoj K. Joshi, Milena Guevara-Bertsch, Florian Kranzl, Rainer Blatt, Christian F. Roos

Chiral quantum heating and cooling with an optically controlled ion
Authors: Jin-Tao Bu, Jian-Qi Zhang, Ge-Yi Ding, Jia-Chong Li, Jia-Wei Zhang, Bin Wang, Wen-Qiang Ding, Wen-Fei Yuan, Liang Chen, Qi Zhong, Ali Keçebaş, Şahin K. Özdemir, Fei Zhou, Hui Jing, Mang Feng

Data augmentation experiments with style-based quantum generative adversarial networks on trapped-ion and superconducting-qubit technologies
Authors: Julien Baglio

Digital-Analog Counterdiabatic Quantum Optimization with Trapped Ions
Authors: Shubham Kumar, Narendra N. Hegade, Alejandro Gomez Cadavid, Murilo Henrique de Oliveira, Enrique Solano, F. Albarrán-Arriagada

Digitized Counterdiabatic Quantum Algorithms for Logistics Scheduling
Authors: Archismita Dalal, Iraitz Montalban, Narendra N. Hegade, Alejandro Gomez Cadavid, Enrique Solano, Abhishek Awasthi, Davide Vodola, Caitlin Jones, Horst Weiss, Gernot Füchsel

Femtosecond laser writing of depressed cladding waveguides in sapphire
Authors: Sarah Winkler, Joachim R. Krenn, Jakob Wahl, Alexander Zesar, Yves Colombe, Klemens Schüppert, Clemens Rössler, Christian Sommer, Philipp Hurdax, Philip Lichtenegger, Bernhard Lamprecht

Generating Einstein–Podolsky–Rosen correlations for teleporting collective spin states in a two dimensional trapped ion crystal
Authors: Muhammad Miskeen Khan, Edwin Chaparro, Bhuvanesh Sundar, Allison Carter, John Bollinger, Klaus Molmer, Ana Maria Rey

Heralded arbitrary graph states with inefficient quantum emitters
Authors: Maxwell Gold, Jianlong Lin, Eric Chitambar, Elizabeth A. Goldschmidt

Implementation of Bα Gates
Authors: M. Karthick Selvan, S. Balakrishnan

Ion-Based Quantum Computing Hardware: Performance and End-User Perspective
Authors: Thomas Strohm, Karen Wintersperger, Florian Dommert, Daniel Basilewitsch, Georg Reuber, Andrey Hoursanov, Thomas Ehmer, Davide Vodola, Sebastian Luber

Numerical Simulations of 3D Ion Crystal Dynamics in a Penning Trap using the Fast Multipole Method
Authors: John Zaris, Wes Johnson, Athreya Shankar, John J. Bollinger, Scott E. Parker

Prospects of nuclear-coupled-dark-matter detection via correlation spectroscopy of I+2 and Ca+
Eric Madge, Gilad Perez, Ziv Meir

Protecting quantum gates from arbitrary single- and two-qubit errors
Authors: Chunfeng Wu, Gangcheng Wang, Xun-Li Feng

Quantum Many-Body Scarring in a Non-Abelian Lattice Gauge Theory
Authors: Giuseppe Calajò, Giovanni Cataldi, Marco Rigobello, Darvin Wanisch, Giuseppe Magnifico, Pietro Silvi, Simone Montangero, Jad C. Halimeh

Realization of a crosstalk-free multi-ion node for long-distance quantum networking
Authors: P. -C. Lai, Y. Wang, J. -X. Shi, Z. -B. Cui, Z. -Q. Wang, S. Zhang, P. -Y. Liu, Z. -C. Tian, Y. -D. Sun, X. -Y. Chang, B. -X. Qi, Y. -Y. Huang, Z. -C. Zhou, Y. -K. Wu, Y. Xu, Y. -F. Pu, L. -M. Duan

Scalable Circuit Cutting and Scheduling in a Resource-constrained and Distributed Quantum System
Authors: Shuwen Kan, Zefan Du, Miguel Palma, Samuel A Stein, Chenxu Liu, Wenqi Wei, Juntao Chen, Ang Li, Ying Mao

Simulating Floquet scrambling circuits on trapped-ion quantum computers
Authors: Kazuhiro Seki, Yuta Kikuchi, Tomoya Hayata, Seiji Yunoki

Strategies for implementing quantum error correction in molecular rotation
Authors: Brandon J. Furey, Zhenlin Wu, Mariano Isaza-Monsalve, Stefan Walser, Elyas Mattivi, René Nardi, Philipp Schindler

Temporally multiplexed ion-photon quantum interface via fast ion-chain transport
Authors: Bingran You, Qiming Wu, David Miron, Wenjun Ke, Inder Monga, Erhan Saglamyurek, Hartmut Haeffner

The Algorithm for Solving Quantum Linear Systems of Equations With Coherent Superposition and Its Extended Applications
Authors: Qiqing Xia, Qianru Zhu, Huiqin Xie, Li Yang

The impact of noise on the simulation of NMR spectroscopy on NISQ devices
Authors: Andisheh Khedri, Pascal Stadler, Kirsten Bark, Matteo Lodi, Rolando Reiner, Nicolas Vogt, Michael Marthaler, Juha Leppäkangas

Trapped-Ion Quantum Simulation of Electron Transfer Models with Tunable Dissipation
Authors: Visal So, Midhuna Duraisamy Suganthi, Abhishek Menon, Mingjian Zhu, Roman Zhuravel, Han Pu, Peter G. Wolynes, José N. Onuchic, Guido Pagano