neutral-atom qubits
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Neutral atom computers: the physics of Rydberg quantum gates | Mark Saffman
From 632nm: Mark Saffman, professor at the University of Wisconsin–Madison and chief scientist at Infleqtion, discusses the physics of optical tweezers and Rydberg gates, how neutral atoms perform quantum logic and create entanglement, and why this platform offers advantages in connectivity and scalability. Read More
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Lightweight machine learning for improved qubit readout
Researchers have developed lightweight machine-learning methods that improve qubit readout accuracy, reduce crosstalk and run hundreds of times faster than previous AI approaches, making them more practical for large-scale neutral-atom quantum computers. Read More
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Measuring neutral atom qubits - high fidelity, low loss
Background-free imaging of single cesium atoms is achieved while keeping them ultracold, allowing nearly perfect identification of their hyperfine states with very high fidelity and low loss. A refined version of the method could push fidelity even higher in microseconds. Read More
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Neutral-atom qubits with Mark Saffman
From The New Quantum Era podcast: University of Wisconsin–Madison Professor Infleqtion Chief Scientist Mark Saffman develops neutral-atom quantum computing platforms using Rydberg atom arrays. He explores the past, present and future of neutral atom quantum computing, its scalability, technological challenges, and opportunities for hybrid quantum systems. Read More
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Interleaving qubit groups for faster operation
Scientists propose a new “movement-free” design for quantum error correction that organizes qubits into interleaved groups, allowing fast, reliable operations within each group and efficient communication between groups. Read More
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Better measurements using neural networks in a neutral-atom quantum computer
Improving qubit measurement with convolutional neural networks in a neutral-atom quantum computer. Read More
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The best qubits for quantum computing might just be atoms
From Quanta: Mark Saffman of the University of Wisconsin–Madison and Infleqtion is featured in this comprehensive overview of neutral-atom qubit research. Read More
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Infleqtion Selected to join Japan's Quantum Moonshot program with leading neutral atom quantum computing platform
From PR Newswire: Q-NEXT partner Infleqtion has been selected by Japan's Science and Technology Agency as the only foreign quantum computing partner in the Quantum Moonshot program, a cutting-edge initiative to advance Japan's technological capabilities and to revolutionize Japan's economy, industry, and security by 2050. As part of the program, Infleqtion will collaborate to develop a large-scale, neutral atom quantum computer with high-fidelity qubits. Read More
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Versatile neutral atoms emerge as an intriguing quantum computing platform
From Physics Today: The University of Wisconsin–Madison's Mark Saffman report the first demonstrations of multistep quantum algorithms in arrays of rubidium atoms. Read More
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David Awschalom wins global Breakthrough of the Year award
David Awschalom, Q-NEXT Chief Science Officer and the Liew Family Professor of Quantum Engineering and Physics at the University of Chicago, received the prestigious Falling Walls Science Breakthrough of the Year in Physical Sciences for a pioneering body of work that broke the wall between quantum technology, molecules, and proteins. Read More
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Helium lifts new quantum computing concept
A team led by Jacob Covey, who is part of Q-NEXT and is an Associate Professor at the University of Chicago, laid out a new concept that could turn helium’s light weight into the next generation of quantum computers. The design relies on helium-3, an isotope with different quantum properties than the helium-4 used to cool MRI machines and fill party balloons. Once built, the computer could use high-powered lasers as “optical tweezers” to capture and control individual atoms of helium. Read More
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Researchers make materials that support quantum technology
Researchers from the University of Illinois Urbana-Champaign who are part of Q-NEXT are engineering material systems that support quantum technology. Chris Anderson and his team are developing materials for quantum transduction — the conversion of quantum information from one form to another. Elizabeth Goldschmidt, Daniel Shoemaker, and colleagues are developing quantum memory technology that stores quantum information for extended periods of time. Read More
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Silicon Chip Offers New Way to Probe Quantum Materials in Strong Magnetic Fields
Scientists have created a silicon chip that can detect the electrical behavior of very small materials by using very high-frequency waves. The chip is made only from silicon and other non-superconducting materials and still performs very well when cooled from room temperature down to about 4 Kelvin. Read More
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Making quantum bits ready to use again much sooner
Scientists from the University of Wisconsin-Madison and Intel have found that a simple electrical pulse can quickly push a quantum dot qubit out of a latched state and return it to its starting condition with very high reliability. Read More
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Q-NEXT-developed open-source software receives 2026 R&D 100 award
SeQUeNCe, a free, open-source software developed by Argonne scientists with Q-NEXT support, is one of seven Argonne projects that received a 2026 R&D 100 Award. The SeQUeNCe software lets researchers test how quantum networks might work before building them. Read More
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Researchers generate spontaneous magnons that synchronize with external signals
Researchers at Argonne and the University of Illinois Urbana-Champaign demonstrate a method for generating stable ripples in magnetic materials called magnons. The work opens avenues for information processing in microelectronics and quantum devices. Read More
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Uncovering the hidden disorder in silicon quantum computers
From the U.S. Department of Energy: Q-NEXT researchers map the variation in materials to the atom level to scale up silicon qubits Read More
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Color centers in high-purity diamond
Researchers mapped how electron irradiation makes defects inside diamond, finding that creating more vacancies does not always produce more NV centers. Too many vacancies can form unwanted defects. This result can inform advances in quantum sensing. Read More
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Containing multitudes: SLAC scientist collaborates to create scalable qubits
At SLAC National Accelerator Laboratory, Q-NEXT collaborator Shannon Harvey develops quantum dots — a mass-producible type of qubit. Driven by curiosity about nature and how things work, Harvey draws on her facility for working at the nanoscale. Read More