Buried nanomagnet realizing high-speed/low-variability silicon spin qubits: implementable in error-correctable large-scale quantum computers

Abstract: "We propose a buried nanomagnet (BNM) realizing highspeed/low-variability silicon spin qubit operation, inspired by buried wiring technology, for the first time. High-speed quantum-gate operation results from large slanting magnetic-field generated by the BNM disposed quite close to a spin qubit, and low-variation of fidelity thanks to the self-aligned fabrication process. Employing ... » read more

Manufacturing Bits: July 27

Merchant quantum processors Startup QuantWare has launched the world’s first merchant and off-the-shelf superconducting processor for quantum computers. QuantWare’s quantum processor unit (QPU), called Soprano, is a 5-qubit device. The QPU can be customized for various applications. The device is ideal for research institutions and university labs. Quantum computing is a hot topic. A... » read more

Manufacturing Bits: March 30

Open access quantum computing Sandia National Laboratories has begun offering an open access program for its quantum computing testbed. Sandia will enable researchers to explore a range of new technologies, such as chemistry, materials science and mathematics, using its so-called Quantum Scientific Computing Open User Testbed (QSCOUT). Quantum computers promise to solve problems that are to... » read more

Silicon CMOS Architecture For A Spin-based Quantum Computer

Source: UNSW Sydney Authors: M. Veldhorst (1,2),  H.G.J. Eenink (2,3) , C.H. Yang (2), and A.S. Dzurak (2) 1 Qutech, TU Delft, The Netherlands 2 Centre for Quantum Computation and Communication Technology, School of Electrical Engineering and Telecommunications,UNSW, Sydney, Australia 3 NanoElectronics Group, MESA+ Institute for Nanotechnology,University of Twente, The Netherlands Te... » read more

System Bits: Jan. 26

Precisely controlling graphene molecules Researchers at UCLA’s California NanoSystems Institute have found that in the same way gardeners may use sheets of plastic with strategically placed holes to allow plants to grow but keep weeds from taking root, the same basic approach can be applied in terms of placing molecules in the specific patterns they need within tiny nanoelectronic devices, w... » read more

System Bits: Nov. 25

Silicon-based quantum computer coding With the goal of removing lingering doubts quantum computers can become a reality, researchers at the University of New South Wales have proven – with what they say is the highest score ever obtained – that a quantum version of computer code can be written and manipulated using two quantum bits in a silicon microchip, removing any doubt silicon ca... » read more

System Bits: April 29

Beyond graphene Researchers at The University of Manchester have shown how they can control the properties of stacks of 2D materials, opening up the potential for new, previously-unimagined electronic devices. The isolation of graphene at the University in 2004 led to the discovery of many other 2D crystals and while graphene has an unrivaled set of superlatives, these crystals cover a larg... » read more