PPPL unveils new laboratory space to advance quantum information science

On March 11, PPPL opened its new Quantum Diamond Lab, a space devoted to studying and refining the processes involved in using plasma, the electrically charged fourth state of matter, to create high-quality diamond material for quantum information science applications.

Understanding the Tantalizing Benefits of Tantalum for Improved Quantum Processors

Researchers working to improve the performance of superconducting qubits, the foundation of quantum computers, have been experimenting using different base materials in an effort to increase the coherent lifetimes of qubits. The coherence time is a measure of how long a qubit retains quantum information, and thus a primary measure of performance. Recently, scientists discovered that using tantalum in superconducting qubits makes them perform better, but no one has been able to determine why—until now.

From Qubits to Potential Cancer Treatments: Laser Upgrade Opens New Research Possibilities

Things are looking brighter than ever at the Berkeley Lab Laser Accelerator Center. A recently completed upgrade will expand the center’s capabilities into new areas, including studies of particle acceleration, extremely hot plasmas, cancer treatment techniques, and materials for quantum science.

Fermilab engineers develop new control electronics for quantum computers that improve performance, cut costs

Quantum computing experiments now have a new control and readout electronics option that will significantly improve performance while replacing cumbersome and expensive systems. Developed by a team of engineers at Fermilab in collaboration with the University of Chicago, the Quantum Instrumentation Control Kit, or QICK for short, is easily scalable.

A new piece of the quantum computing puzzle

Research from the McKelvey School of Engineering at Washington University in St. Louis has found a missing piece in the puzzle of optical quantum computing. Jung-Tsung Shen, associate professor in the Department of Electrical & Systems Engineering, has developed a deterministic, high-fidelity two-bit quantum logic gate that takes advantage of a new form of light.

Particle accelerator technology could solve one of the most vexing problems in building quantum computers

One of the most difficult problems to overcome in developing a quantum computer is finding a way to maintain the lifespan of information held in quantum bits, called qubits. Researchers at Fermilab and Argonne National Laboratory are working to determine whether devices used in particle accelerators can help solve the problem. The team will run simulations on high-performance computers that will enable them to predict the lifespan of information held within these qubits using smaller versions of these devices, taking us one step closer to the age of quantum computing.

Creating the Heart of a Quantum Computer: Developing Qubits

To use quantum computers on a large scale, we need to improve the technology at their heart – qubits. Qubits are the quantum version of conventional computers’ most basic form of information, bits. The DOE’s Office of Science is supporting research into developing the ingredients and recipes to build these challenging qubits.

Complex energies, quantum symmetries

In a certain sense, physics is the study of the universe’s symmetries. Physicists strive to understand how systems and symmetries change under various transformations.New research from Washington University in St. Louis realizes one of the first parity-time (PT) symmetric  quantum systems, allowing scientists to observe how that kind of symmetry — and the act of breaking of it — leads to previously unexplored phenomena.