tag: quantum computing

QubiC: An Open-Source FPGA-Based Control and Measurement System for Superconducting Quantum Information Processors
By Technical Paper Link - 09 Mar, 2022 - Comments: 0

Abstract: "As quantum information processors grow in quantum bit (qubit) count and functionality, the control and measurement system becomes a limiting factor to large-scale extensibility. To tackle this challenge and keep pace with rapidly evolving classical control requirements, full control stack access is essential to system-level optimization. We design a modular field-programmable gate a... » read more

Manufacturing Bits: Nov. 30
By Mark LaPedus - 30 Nov, 2021 - Comments: 0

Quantum chemistry QunaSys has launched a technology that enables researchers to perform chemical calculations using quantum computers in the cloud. The company has announced the launch of the cloud version of Qamuy, which is supported by Amazon Web Services Japan. Qamuy is a software technology that allows researchers to perform chemical calculations using quantum computers. Developers c... » read more

Factoring 2048-bit RSA Integers in 177 Days with 13 436 Qubits and a Multimode Memory
By Technical Paper Link - 18 Nov, 2021 - Comments: 0

Abstract: "We analyze the performance of a quantum computer architecture combining a small processor and a storage unit. By focusing on integer factorization, we show a reduction by several orders of magnitude of the number of processing qubits compared with a standard architecture using a planar grid of qubits with nearest-neighbor connectivity. This is achieved by taking advantage of a tem... » read more

The Race To Make Better Qubits
By Katherine Derbyshire - 18 Nov, 2021 - Comments: 0

One of the big challenges in quantum computing is getting qubits to last long enough to do something useful with them. After decades of research, there now appears to be tangible progress. The challenge with any new semiconductor technology is to improve performance by one or more orders of magnitude without discarding a half-century of progress in other areas. Qubits based on silicon quantu... » read more

Manufacturing Bits: Nov. 8
By Mark LaPedus - 08 Nov, 2021 - Comments: 0

Plasma R&D with quantum computing Rigetti Computing, a developer of quantum computers, has been selected to lead a quantum simulation project for the development of fusion energy. The project was awarded by the Department of Energy (DoE). Under the plan, Rigetti will collaborate with Lawrence Livermore National Laboratory and the University of Southern California on a three-year, $3.1 m... » read more

Buried nanomagnet realizing high-speed/low-variability silicon spin qubits: implementable in error-correctable large-scale quantum computers
By Technical Paper Link - 27 Oct, 2021 - Comments: 0

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

Progress On General-Purpose Quantum Computers
By Katherine Derbyshire - 21 Oct, 2021 - Comments: 0

The race is on to scale up quantum computing, transforming it from an esoteric research tool into a commercially viable, general-purpose machine. Special-purpose quantum computers have been available for several years now. Systems like D-Wave’s Advantage focus on specific classes of problems that are amenable to modeling as quantum systems. Still, the ultimate goal of having a general purp... » read more

The Battle For Post-Quantum Security Will Be Won By Agility
By Thomas Poeppelmann - 02 Sep, 2021 - Comments: 0

By Thomas Poeppelmann and Martin Schlaeffer Due to their special features, quantum computers have the disruptive potential to replace existing conventional computers in many applications. They could, for example, calculate simulations of complex molecules for the chemical and pharmaceutical industry, perform complicated optimizations for the automotive and aviation industry, or create new fi... » read more

Variational Quantum Algorithms (VQA)
By Technical Paper Link - 27 Aug, 2021 - Comments: 0

  Abstract "Applications such as simulating large quantum systems or solving large-scale linear algebra problems are immensely challenging for classical computers due their extremely high computational cost. Quantum computers promise to unlock these applications, although fault-tolerant quantum computers will likely not be available for several years. Currently available quantum device... » read more

Manufacturing Bits: Aug. 17
By Mark LaPedus - 17 Aug, 2021 - Comments: 0

Scaling qubits Australia is a hotbed of R&D activity, especially in the field of quantum computing. For example, the University of New South Wales (UNSW) in Australia has demonstrated a possible way to control millions of qubits in a silicon quantum chip. Researchers from UNSW Sydney have devised a new three-dimensional dielectric resonator, a technology that could deliver controlled... » read more

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