quantum network
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So you want to build a quantum computer?
From Nextgov/FCW: For all the hype, funding and policy around quantum computing, there is still a lot of basic scientific research to be done to bring a quantum information system to life. Leading researchers at Argonne National Laboratory and Q-NEXT spoke with Nextgov/FCW about the integrative work that bridges the gap between theory and practice, with applications and scalability a distant but feasible goal. Read More
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New method could yield fast, cross-country quantum network
Scientists have struggled to come up with practical methods of building networks that can connect quantum computers. Now, researchers at the University of Chicago have proposed a new approach — building long quantum channels using vacuum sealed tubes with an array of spaced-out lenses. These vacuum beam guides would have ranges of thousands of kilometers and capacities of 10 trillion qubits per second, better than any existing quantum communication approach. Read More
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Quick-adjustment delay lines for quantum computers and repeaters
Researchers find a setup that enables greater control over delay lines, which store quantum information. The setup will be useful for technologies such as quantum repeaters and quantum networking. Read More
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Bringing quantum entanglement to the people
From the National Science Foundation: NSF’S Quantum Leap Challenge Institute Hybrid Quantum Architectures and Networks at the University of Illinois Urbana-Champaign, a Q-NEXT partner, has created a working demonstration that brings entanglement between photons to a public setting for the first time. Read More
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Computational capabilities that will transform the world
From Forbes: Q-NEXT Director David Awschalom and the Chicago Quantum Exchange are mentioned in this article on world-transforming computational capabilities. CQE predicts that secure communication will be enabled via metropolitan-scale entangled quantum networks in the next five years. Read More
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Researchers invent new way to stretch diamond for better quantum bits
A team of researchers at the University of Chicago, Argonne National Laboratory and Cambridge University have announced a breakthrough in quantum network engineering: By “stretching” thin films of diamond, they created quantum bits that can operate with significantly reduced equipment and expense. The change also makes the bits easier to control. The researchers hope the findings, published Nov. 29 in Physical Review X, can make future quantum networks more feasible. Read More
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Chitambar group establishes criterion for nonlocal quantum behavior in networks
From the University of Illinois Urbana-Champaign: In a study published in Physical Review Letters, Q-NEXT thrust lead Eric Chitambar and Amanda Gatto Lamas adapt techniques from quantum computing theory to create a new classification scheme for quantum nonlocality. This not only allowed the researchers to unify prior studies of the concept into a common framework, but it facilitated a proof that networked quantum systems can display nonlocality only if they possess a particular set of quantum features. Read More
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Quantum computers could break the internet. Here’s how to save it
From Science News: Q-NEXT Director David Awschalom and student Nolan Bitner are featured in this article on quantum cryptography and a future quantum internet. Read More
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Quantum repeaters and their role in information technology
If we want quantum computers to reach their full potential, we’ll need complex networks of the machines strung together with quantum repeaters. Read More
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4 mind-boggling technology advances in store for 2023
From Forbes: Q-NEXT Director David Awschalom talks about what we can expect from future quantum networks. 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