Foreword

Dear Ion Trappers,

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. Visit the 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.

Upcoming Events

Quantum Optics Obergurgl 2026

February 22–28, 2026

Obergurgl, Austria

ACP Winter Workshop: Fundamental Physics in Space with Quantum Sensors

February 22–27, 2026

Aspen, Colorado, USA

QVLS Winter School 2026

February 23–27, 2026

Hannover, Germany

DPG Spring Meeting (SAMOP)

March 2–6, 2026

Mainz, Germany

WE Heraeus Seminar on Quantum Sensors, Devices and Materials

March 15–18, 2026

Bad Honnef, Germany

APS Global Physics Summit

March 15–20, 2026

Denver, Colorado, USA

IEEE QCNC 2026 – Quantum Communications, Networking & Computing

April 6–8, 2026

Kobe, Japan

EFTF 2026 – European Frequency and Time Forum

April 20–23, 2026

ESA ESTEC, Noordwijk, Netherlands

CLEO 2026 – Conference on Lasers and Electro-Optics

May 17–21, 2026

Charlotte, North Carolina, USA

Technical Conference: May 19–20, 2026

International Conference on Precision Physics of Simple Atomic Systems (PSAS)

May 18–22, 2026

Vienna, Austria

57th Conference of the European Group on Atomic Systems (EGAS57)

June 21–25, 2026

Toruń, Poland

ICAP 2026 – International Conference on Atomic Physics

June 14–19, 2026

Wuhan, China

ICAP Satellite Meeting: Fundamental Constants and Physics Beyond the Standard Model

June 22–24, 2026

Hefei, China

YAO 2026 – Young Atom Opticians Conference

June 7–13, 2026

Crete, Greece

14th European Frequency and Time Seminar (EFTS)

June 29 – July 3, 2026

Besançon, France

30th Central European Workshop on Quantum Optics (CEWQO30)

July 20–24, 2026

Erlangen, Germany

Quantum Computing User Forum 2026

July 20–24, 2026

Oak Ridge, USA

Quantum Science Gordon Research Conference

July 26–31, 2026

Easton, Massachusetts, USA

QSim2026 – Quantum Simulation Conference

August 10–14, 2026

Amsterdam, Netherlands

Early Career Conference in Trapped Ions (ECCTI) 2026

September 6–11, 2026

Oxford, United Kingdom

HCI 2026 – International Conference on the Physics of Highly Charged Ions

September 7–11, 2026

Huizhou, China

TCP2026 – Conference on Trapped Charged Particles and Fundamental Physics

September 13–18, 2026

Location TBA

German Conference on Women in Physics 2026

September 28–30, 2026

RPTU Kaiserslautern, Germany

Jobs

Postdoc position in theoretical astrophysics at the Technische Universität Braunschweig, Germany. The position is initially available for 1.5 years.

https://www.tu-braunschweig.de/en/theophys/vacancies

Postdoc Position on Photonic Integrated Ion Traps available at the University of Hannover / Physikalisch-Technische Bundesanstalt.

https://www.quantummetrology.de/quaccs/home/

Publications

Analysis of the confinement string in (2+1)-dimensional Quantum Electrodynamics with a trapped-ion quantum computer

Arianna Crippa, Karl Jansen & Enrico Rinaldi

Communications Physics volume 9, Article number: 46 (2026)

Architecture of a scalable universal quantum processor by encoding two qubits on electron and nuclear spins in a trapped ion

Ji Bian, Teng Liu, Min Ding, Qifeng Lao, Huiyi Zhang, Xinxin Rao, Pengfei Lu and Le Luo

2026 New J. Phys. 28 014509

Bridging quantum computing and nuclear structure: Atomic nuclei on a trapped-ion quantum computer

Sota Yoshida, Takeshi Sato, Takumi Ogata, and Masaaki Kimura

Phys. Rev. Research 8, 013134 (2026)

Characterization of the 1st Mathieu stability regime in auto-ponderomotive Paul-trap-like electron guides

D. F. Schmidt-Kaler, N. R. Bode, M. Seidling, R. Zimmermann, J. Walther, P. Hommelhoff

Appl. Phys. Lett. 128, 031102 (2026)

Collection of fluorescence from an ion using trap-integrated photonics

Felix W. Knollmann, Sabrina M. Corsetti, Ethan R. Clements, Reuel Swint, Aaron D. Leu, May E. Kim, Patrick T. Callahan, Dave Kharas, Thomas Mahony, Cheryl Sorace-Agaskar, Robert McConnell, Colin D. Bruzewicz, Isaac L. Chuang, Jelena Notaros & John Chiaverini

Light: Science & Applications volume 15, Article number: 95 (2026)

Demonstration of measurement-free universal logical quantum computation

Friederike Butt, Ivan Pogorelov, Robert Freund, Alex Steiner, Marcel Meyer, Thomas Monz & Markus Müller

Nature Communications volume 17, Article number: 995 (2026)

Design and characterization of a cryogenic vacuum chamber for ion trapping experiments

Featured

Available to Purchase

M. Hartsell, J. M. Gray, C. M. Shappert, N. L. Gostin, R. A. McGill, H. N. Tinkey, C. R. Clark, K. R. Brown

Journal: Applied Physics Letters

Appl. Phys. Lett. 128, 034001 (2026)

Design and fabrication of metal-shielded fiber-cavity mirrors for ion-trap systems

Wei-Bin Chen, Ding Fang, Cheng-Hao Zhang, Jin-Ming Cui, Yun-Feng Huang, Chuan-Feng Li and Guang-Can Guo

2026 Quantum Sci. Technol. 11 015045

Efficient compilation of quantum circuits using multi-qubit gates

Jonathan Nemirovsky, Maya Chuchem and Yotam Shapira

2026 Quantum Sci. Technol 11 01LT02

Experimental Realization of Direct Entangling Gates between Dual-Type Qubits

Chenxi Wang, Chuanxin Huang, Hongxuan Zhang, Hongyuan Hu, Zhichao Mao, Panyu Hou, Yukai Wu, Zichao Zhou, and Luming Duan

Phys. Rev. Lett. 134, 010601 (2025)

Individual trapped-ion addressing with adjoint-optimized multimode photonic circuits

Melika Momenzadeh, Ke Sun, Qiming Wu, Bingran You, Yu-Lung Tang, Hartmut Häffner & Maxim R. Shcherbakov

npj Nanophotonics volume 3, Article number: 3 (2026)

https://iopscience.iop.org/article/10.1088/1361-6455/ae407d

A method of an on-demand beamsplitter for trapped-ion quantum computers

Takanori Nishi

2026 J. Phys. B: At. Mol. Opt. Phys. 59 035502

Integrated multi-wavelength photonic routing architectures for scalable trapped ion quantum devices

Open Access

Alto Osada, Koichiro Miyanishi

Journal: APL Quantum

APL Quantum 3, 016104 (2026)

Integrated-photonics-based systems for polarization-gradient cooling of trapped ions

Sabrina M. Corsetti, Ashton Hattori, Ethan R. Clements, Felix W. Knollmann, Milica Notaros, Reuel Swint, Tal Sneh, Patrick T. Callahan, Gavin N. West, Dave Kharas, Thomas Mahony, Colin D. Bruzewicz, Cheryl Sorace-Agaskar, Robert McConnell, Isaac L. Chuang, John Chiaverini & Jelena Notaros

Light: Science & Applications volume 15, Article number: 57 (2026)

Kilometer-scale ion-photon entanglement with a metastable 88 Sr + qubit

Mika A. Zalewski, Denton Wu, Ana Luiza Ferrari, Yuanheng Xie, and Norbert M. Linke

Phys. Rev. A 113, 012615 (2026)

Liquid-Nitrogen-Cooled 40⁢Ca+ Ion Optical Clock with a Systematic Uncertainty of 4.4×10−19

Bao-lin Zhang, Zi-xiao Ma, Yao Huang, Hui-li Han, Ru-ming Hu, Yu-zhuo Wang, Hua-qing Zhang, Li-yan Tang, Ting-yun Shi, Hua Guan, and Ke-lin Gao

Phys. Rev. Lett. 136, 053202 (2026)

Multimode Fock-State Measurements using Dispersive Shifts in a Trapped Ion

Wonhyeong Choi, Jiyong Kang, Kyunghye Kim, Jaehun You, Kyungmin Lee, Taehyun Kim

Nonparaxial effects on laser-qubit operations

Louis P. H. Gallagher, Matteo Mazzanti, Zeger E. D. Ackerman, Arghavan Safavi-Naini, Rene Gerritsma, and Robert J. C. Spreeuw

Pays. Rev. Research 8, 013077 (2026)

Optical Tweezer-Controlled Entanglement Gates with Trapped-Ion Qubits

David Schwerdt, Lee Peleg, Gal Dekel, Lekshmi Rajagopal, Oz Matoki, Avram Gross, Yotam Shapira, Nitzan Akerman, and Roee Ozeri

Phys. Rev. Lett. 136, 020604 (2026)

Parts-per-million-accurate determination of the 𝐾⁢𝛼 photoionization resonance of Be-like oxygen with resolution of its 16 O – 18 O isotopic shift

Jonas Danisch, Marc Botz, Chintan Shah, Moto Togawa, Joschka Goes, Dominic Hache, Filipe Grilo, Pedro Amaro, Vladimir A. Yerokhin, Steffen Kühn, Awad Mohamed, Roberta Totani, Monica de Simone, Stefano Orlando, Thomas Pfeifer, Fabrizio Nicastro, Marcello Coreno, and José R. Crespo López-Urrutia

Phys. Rev. A 113, 022811 (2026)

Phase-space topology in a single-atom synthetic dimension

Lee, S. Yu, J. Kang, S. Yu, W. Choi, D. Chung, S. Park, T. Kim

Phys. Rev. A 113, L010401 (2026)

Photon-Interfaced Ten-Qubit Register of Trapped Ions

Canteri, Z. X. Koong, J. Bate, A. Winkler, V. Krutyanskiy, and B. P. Lanyon

Phys. Rev. Lett. 135, 080801 (2025)

Polarization of x-rays emitted in radiative recombination into bare ions: Role of spin-flip transitions

Tianluo Luo, Zhencen He, Zhihao Yang, Yunping Wang, Stephan Fritzsche, Xiang Gao, and Zhimin Hu

Phys. Rev. A 113, 012826 (2026)

Practical noise mitigation for quantum annealing via dynamical decoupling: Toward industry-relevant optimization using trapped ions

Sebastian Nagies, Chiara Capecci, Marcel Seelbach Benkner, Javed Akram, Sebastian Rubbert, Dimitrios Bantounas, Michael Moeller, Michael Johanning, and Philipp Hauke

Phys. Rev. A 113, 012621 (2026)

Quantum suppression of cold reactions far from the s-wave energy limit

Or Katz, Meirav Pinkas, Nitzan Akerman, Ming Li & Roee Ozeri

Nature Communications volume 17, Article number: 1155 (2026)

Realization of a Crosstalk-Free Two-Ion Node for Long-Distance Quantum Networking

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, and L.-M. Duan

Phys. Rev. Lett. 134, 070801 (2025)

Resource-efficient Hadamard test tailored variational framework for nonlinear dynamics on quantum computers

Eleftherios Mastorakis, Muhammad Umer, Milena Guevara-Bertsch, Juris Ulmanis, Felix Rohde and Dimitris G Angelakis

2026 Quantum Sci. Technol. 11 015061

Roadmap on quantum thermodynamics

Steve Campbell, Irene D’Amico, Mario A Ciampini, Janet Anders, Natalia Ares, Simone Artini, Alexia Auffèves, Lindsay Bassman Oftelie, Laetitia P Bettmann, Marcus V S BonançaShow full author list

2026 Quantum Sci. Technol. 11 012501

Sub-Doppler Cooling of a Trapped Ion in a Phase-Stable Polarization Gradient

Ethan Clements, Felix W. Knollmann, Sabrina Corsetti, Zhaoyi Li, Ashton Hattori, Milica Notaros, Reuel Swint, Tal Sneh, May E. Kim, Aaron D. Leu, Patrick Callahan, Thomas Mahony, Gavin N. West, Cheryl Sorace-Agaskar, Dave Kharas, Robert McConnell, Colin D. Bruzewicz, Isaac L. Chuang, Jelena Notaros, and John Chiaverini

Phys. Rev. Lett. 136, 023201 (2026)

Preprints

A building block of quantum repeaters for scalable quantum networks

Authors: Wen-Zhao Liu, Ya-Bin Zhou, Jiu-Peng Chen, Bin Wang, Ao Teng, Xiao-Wen Han, Guang-Cheng Liu, Zhi-Jiong Zhang, Yi Yang, Feng-Guang Liu, ChaoHui Xue, Bo-Wen Yang, Jin Yang, Chao Zeng, Du-Ruo Pan, Ming-Yang Zheng, Xing-Jian Zhang, Cao Shen, Yi-Zheng Zhen, You Xiao, Hao Li, Li-Xing You, XiongFeng Ma, Qi Zhao, Feihu Xu , et al. (4 additional authors not shown)

Bidirectional teleportation using scrambling dynamics: a practical protocol

Authors: Amit Vikram, Edwin Chaparro, Muhammad Miskeen Khan, Andrew Lucas, Chris Akers, Ana Maria Rey

Blue to Near-IR Integrated PZT Silicon Nitride Modulators for Quantum and Atomic Applications

Authors: Nick Montifiore, Andrei Isichenko, Nitesh Chauhan, Jiawei Wang, Andrew S. Hunter, Mark W. Harrington, Rahul Chawlani, Ryan Q. Rudy, Iain Kierzewski, Michael Pushkarsky, Daniel J. Blumenthal

Charge Exchange Dynamics in Cold Collisions of 40CaH+ and 39K

Authors: Swapnil Patel, Dibyendu Sardar, Jyothi Saraladevi, Michał Tomza, Kenneth R. Brown

Confined non-Hermitian skin effect in a semi-infinite Fock-state lattice

Authors: Zhi Jiao Deng, Xing Yao Mi, Ruo Kun Cai, Chun Wang Wu, Ping Xing Chen

Coupling free electrons to a trapped-ion quantum computer

Authors: Elias Pescoller, Santiago Beltrán-Romero, Sebastian Egginger, Nicolas Jungwirth, Martino Zanetti, Dominik Hornof, Michael S. Seifner, Iva Březinová, Philipp Haslinger, Thomas Juffmann, Johannes Kofler, Philipp Schindler, Dennis Rätzel

Device-independent quantum memory certification in two-point measurement experiments

Authors: Leonardo S. V. Santos, Peter Tirler, Michael Meth, Lukas Gerster, Manuel John, Keshav Pareek, Tim Gollerthan, Martin Ringbauer, Otfried Gühne

Direct observation of the optical Magnus effect with a trapped ion

Authors: Philip Leindecker, Louis P. H. Gallagher, Edgar Brucke, Dominique Zehnder, Luka Milanovic, Matteo Marinelli, Rene Gerritsma, Robert J. C. Spreeuw, Jonathan Home, Cornelius Hempel

Distributed Phase-Insensitive Displacement Sensing

Authors: Piotr T. Grochowski, Matteo Fadel, Radim Filip

Drive-Through Quantum Gate: Non-Stop Entangling a Mobile Ion Qubit with a Stationary One

Authors: Ting Hsu, Wen-Han Png, Kuan-Ting Lin, Ming-Shien Chang, Guin-Dar Lin

Efficient Three-Dimensional Sub-Doppler Cooling of 40Ca+ in a Penning Trap

Authors: Brian J. McMahon, Brian C. Sawyer

Enhanced Yield Rate of \textsuperscript{229m}Th via Cascade Decay in Storage Rings and Electron Beam Ion Traps

Authors: Yumiao Wang, Yi Yang, Yixin Li, Ding Yue, Kai Zhao, Youjing Wang, Changbo Fu, Yugang Ma

Generation of fully phase controlled two-photon entangled states

Authors: Ian Ford, Adrien Amour, Matthias Keller

In-Situ Rewiring of Two-Dimensional Ion Lattice Interactions Using Metastable State Shelving

Authors: Ilyoung Jung, Antonis Kyprianidis, Frank G. Schroer, Thomas W. Burkle, Jack Lyons, Philip Richerme

Long-Range Pairing in the Kitaev Model: Krylov Subspace Signatures

Authors: Rishabh Jha, Heiko Georg Menzler

Multi-ion entangling gates mediated by spectrally unresolved modes

Modesto Orozco-Ruiz, Florian Mintert

Onset of thermalization of q-deformed SU(2) Yang-Mills theory on a trapped-ion quantum computer

Authors: Tomoya Hayata, Yoshimasa Hidaka, Yuta Kikuchi

Photoexcitation spectroscopy of highly charged ions for application to astronomy using a compact electron beam ion trap (EBIT) at the synchrotron radiation facility SPring-8

Authors: Leo Hirata, Yuki Amano, Moto Togawa, Hiroyuki A. Sakaue, Nobuyuki Nakamura, Makoto Sawada, Hiromasa Suzuki, Masaki Oura, Hiroya Yamaguchi

Precision measurement of the ground-state hyperfine constant for 9Be+ in a linear Paul trap via magnetically insensitive hyperfine transitions

Authors: Zhi-yuan Ao, Wen-li Bai, Qian-yu Zhang, Wen-cui Peng, Xin Tong

Preparing squeezed, cat and GKP states with parity measurements

Authors: Zhiyuan Lin, Sen Li, Jingyan Feng, Valentin Ivannikov, Matteo Fadel, Tim Byrnes

Quantum-HPC hybrid computation of biomolecular excited-state energies

Authors: Kentaro Yamamoto, Riku Masui, Takahito Nakajima, Miwako Tsuji, Mitsuhisa Sato, Peter Schow, Lukas Heidemann, Matthew Burke, Philipp Seitz, Oliver J. Backhouse, Juan W. Pedersen, John Children, Craig Holliman, Nathan Lysne, Daichi Okuno, Seyon Sivarajah, David Muñoz Ramo, Alex Chernoguzov, Ross Duncan

Quantum Kernel Machine Learning for Autonomous Materials Science

Authors: Felix Adams, Daiwei Zhu, David W. Steuerman, A. Gilad Kusne, Ichiro Takeuchi

Quantum simulation of the Dicke model in a two-dimensional ion crystal: chaos, quantum thermalization, and revivals

Authors: Bryce Bullock, Sean R. Muleady, Jennifer F. Lilieholm, Yicheng Zhang, Robert J. Lewis-Swan, John J. Bollinger, Ana Maria Rey, Allison L. Carter

Quantum spin-heat engine with trapped ions

Authors: André R. R. Carvalho, Liam J. McClelland, Erik W. Streed, Joan Vaccaro

Qubit-parity interference despite unknown interaction phases

Authors: Kratveer Singh, Kimin Park, Vojtěch Švarc, Artem Kovalenko, Tuan Pham, Ondřej Číp, Lukáš Slodička, Radim Filip

Resource-efficient quantum simulation of transport phenomena via Hamiltonian embedding

Authors: Joseph Li, Gengzhi Yang, Jiaqi Leng, Xiaodi Wu

Requirements for Teleportation in an Intercity Quantum Network

Authors: Soubhadra Maiti, Guus Avis, Sounak Kar, Stephanie Wehner

Spectroscopic Detection and Characterization of Cyanooxomethylium, NCCO+

Authors: Marcel Bast, Julian Böing, Thomas Salomon, Eline Plaar, Igor Savić, Mathias Schäfer, Oskar Asvany, Stephan Schlemmer, Sven Thorwirth

Superfluidity in the spin-1/2 XY model with power-law interactions

Authors: Muhammad Shaeer Moeed, Costanza Pennaforti, Adrian Del Maestro, Roger G. Melko

Taming multiparty entanglement at measurement-induced phase transitions

Authors: Liuke Lyu, James Allen, Yi Hong Teoh, Roger G Melko, William Witczak-Krempa

Two-phase driving of a linear radio-frequency ion trap

Authors: Santhosh Surendra, Akos Hoffmann, Michael Köhl