Research Bits: Nov. 21


Graphene heater for phase-change switches Researchers from the University of Washington, Stanford University, Charles Stark Draper Laboratory, University of Maryland, and Massachusetts Institute of Technology designed an energy-efficient, silicon-based non-volatile switch that manipulates light through the use of a phase-change material and graphene heater. Aiming to reduce the power consum... » read more

Week In Review: Semiconductor Manufacturing, Test


U.S. President Joe Biden appears ready to increase pressure on Japan and the Netherlands to help block the flow of advanced chip technology to China, where it can be used to develop cutting-edge weapons. "You will see Japan and Netherlands follow our lead," U.S. Commerce Secretary Gina Raimondo told CNBC. Japan plans to budget ¥350 billion ($2.38 billion) in a research collaboration with th... » read more

Post-Quantum And Pre-Quantum Security Issues Grow


General-purpose quantum computers will be able to crack the codes that protect much of the world’s information, and while these machines don’t exist yet, security experts say governments and businesses are starting to prepare for encryption in a post-quantum world. The task is made all the more challenging because no one knows exactly how future quantum machines will work, or even which mat... » read more

Simulating the Groundstate and Dynamics of Quantum Critical Systems


A new technical paper titled "Simulating groundstate and dynamical quantum phase transitions on a superconducting quantum computer" was published by researchers at London Centre for Nanotechnology, University College London, University of Massachusetts, and Google Quantum AI. Abstract (partial) "The phenomena of quantum criticality underlie many novel collective phenomena found in condensed... » read more

Six Qubit Processor (TU Delft, QuTech, TNO)


A new technical paper titled "Universal control of a six-qubit quantum processor in silicon" was just published by researchers at Delft University of Technology, QuTech and Netherlands Organization for Applied Scientific Research (TNO). "We increase the number of qubits and simultaneously achieve respectable fidelities for universal operation, state preparation and measurement. We design, fa... » read more

Spin–Orbit Qubit With A Single Hole Electrostatically Confined In A Natural Silicon Metal-Oxide-Semiconductor Device


A new technical paper titled "A single hole spin with enhanced coherence in natural silicon" was published by researchers at Université Grenoble Alpes, CEA, LETI, and CNRS. Abstract: "Semiconductor spin qubits based on spin–orbit states are responsive to electric field excitations, allowing for practical, fast and potentially scalable qubit control. Spin electric susceptibility, however,... » read more

Optimizing Quantum Sensors


A new technical paper titled "Dissipative Superradiant Spin Amplifier for Enhanced Quantum Sensing" was published by researchers at the University of Chicago and Simon Fraser University, British Columbia. According to the University of Chicago news release, the researchers examined how qubits interact with each other and discovered a better way of extracting information out of the qubits by ... » read more

Microelectronics For Quantum Technologies


By Kay-Uwe Giering and Andy Heinig The transition of the quantum mechanics realm into engineering applications is opening up a large number of disruptive quantum technological opportunities. Their success relies on the recent technological advancements, which enable the controlled creation of individual quantum mechanical systems as well as their direct manipulation and measurement. Quantum ... » read more

Quantum Computing


Sebastian Luber, senior director of technology and innovation at Infineon Technologies, talks about the growing interest in quantum computers, what’s still missing to make this technology more relevant, and how to improve the lifespan and accuracy of qubits. » read more

Quantum Research Bits: Sept. 12


Making Qubits Last Longer One of the big challenges in quantum computing is extending the lifespan of qubits, called coherence time, long enough to do something useful with them. Research is now focused on how to increase that usable lifetime, and what factors can impact that. This has led to very different conclusions about whether silicon is a good substrate choice for quantum chips. Rese... » read more

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