tag: Qubits

Research Bits: May 30
By Susan Rambo - 30 May, 2023 - Comments: 0

Improving qubits Researchers from QuTech say they have improved the ‘Andreev spin qubit’ by taking the two most promising qubits — the spin qubits in semiconductors and transmon qubits in superconducting circuits — and finding a hybrid way that uses the best of both qubit types. “Spin qubits are small and compatible with current industrial technology, but they struggle with interact... » read more

Quantum: Loophole-​Free Bell Test with Superconducting Circuits (ETH Zurich)
By Technical Paper Link - 10 May, 2023 - Comments: 0

A new technical paper titled "Loophole-free Bell inequality violation with superconducting circuits" was published by a group of researchers led by ETH Zurich. Abstract (partial) "Here we demonstrate a loophole-free violation of Bell’s inequality with superconducting circuits, which are a prime contender for realizing quantum computing technology. To evaluate a Clauser–Horne–Shimony... » read more

Quantum Light Source Fully Integrated On A Chip
By Technical Paper Link - 20 Apr, 2023 - Comments: 0

A new technical paper titled "Quantum light source goes fully on-chip, bringing scalability to the quantum cloud" was published by researchers at Leibniz University Hannover, University of Twente and QuiX Quantum. Abstract: "Integrated photonics has recently become a leading platform for the realization and processing of optical entangled quantum states in compact, robust and scalable chip ... » read more

Transferring Qubits Directly Between Quantum Computing Microchips (U. of Sussex/ Universal Quantum)
By Technical Paper Link - 08 Feb, 2023 - Comments: 0

A new technical paper titled "A high-fidelity quantum matter-link between ion-trap microchip modules" was published by researchers at University of Sussex, Universal Quantum Ltd, University College London and University of Bristol. “As quantum computers grow, we will eventually be constrained by the size of the microchip, which limits the number of quantum bits such a chip can accommodate.... » read more

Quantum Computing Architecture Enabling Communication Between Superconducting Quantum Processors (MIT)
By Technical Paper Link - 11 Jan, 2023 - Comments: 0

A technical paper titled "On-demand directional microwave photon emission using waveguide quantum electrodynamics" was published by researchers at MIT. “Quantum interconnects are a crucial step toward modular implementations of larger-scale machines built from smaller individual components,” says Bharath Kannan PhD ’22, co-lead author of a research paper describing this technique, in a... » read more

Connecting Quantum Devices With Sound
By Technical Paper Link - 30 Nov, 2022 - Comments: 0

A new technical paper titled "On-chip distribution of quantum information using traveling phonons" was published by researchers at TU Delft, Center for Nanophotonics, AMOLF, and Eindhoven University of Technology. "Physicists from the Gröblacher lab at TU Delft have built a device that can link different quantum devices and qubits to each other. This device, a silicon chip with vibrations t... » read more

Six Qubit Processor (TU Delft, QuTech, TNO)
By Technical Paper Link - 29 Sep, 2022 - Comments: 0

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
By Technical Paper Link - 28 Sep, 2022 - Comments: 0

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
By Technical Paper Link - 13 Sep, 2022 - Comments: 0

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

Quantum Computing
By Ed Sperling - 12 Sep, 2022 - Comments: 0

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

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