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Category: quantum physics – Page 669

Qudits and High-Dimensional Quantum Computing

10 November 2020

Qudit is a multi-level computational unit alternative to the conventional 2-level qubit. Compared to qubit, qudit provides a larger state space to store and process information, and thus can provide reduction of the circuit complexity, simplification of the experimental setup and enhancement of the algorithm efficiency. This review provides an overview of qudit-based quantum computing covering a variety of topics ranging from circuit building, algorithm design, to experimental methods. We first discuss the qudit gate universality and a variety of qudit gates including the pi/8 gate, the SWAP gate, and the multi-level controlled-gate. We then present the qudit version of several representative quantum algorithms including the Deutsch-Jozsa algorithm, the quantum Fourier transform, and the phase estimation algorithm.

Coding for Qubits: How to Program in Quantum Computer Assembly Language

Sandia Labs pioneers Just Another Quantum Assembly Language (.

Quantum computing arguably isn’t quite full-fledged computing till there’s quantum software as well as hardware. One open-source quantum computer project at Sandia National Laboratories in Albuquerque, New Mexico aims to address this disparity with a custom-made assembly language for quantum computation.

Why Materialism is a Flatlander Philosophy

When enough anomalies accumulate over time, paradigms change. We may be close to that inflection point right now. At this juncture of technoscientific progress, the boldest of us may admit that we’re overdue for the next post-materialist paradigm: Conventional scientific method is already bankrupt and needs to be supplanted by AI-powered quantum neo-empiricism, computational thinking and the cybernetic approach to reality.

#materialism #physicalism #philosophy #scientificmethod #evolutionarycybernetics

“The only reality is mind and observations but observations are not of things. To see the Universe as it really is, we must abandon our…

Colorado makes a bid for quantum computing hardware plant that would bring more than 700 jobs

The Colorado Economic Development Commission normally doesn’t throw its weight behind unproven startups, but it did so on Thursday, approving $2.9 million in state job growth incentive tax credits to try and land a manufacturing plant that will produce hardware for quantum computers.

“Given the broad applications and catalytic benefits that this company’s technology could bring, retaining this company would help position Colorado as an industry leader in next-generation and quantum computing,” Michelle Hadwiger, the deputy director of the Colorado Office of Economic Development & International Trade, told commissioners.

Project Quantum, the codename for the Denver-based startup, is looking to create up to 726 new full-time jobs in the state. Most of the positions would staff a new facility making components for quantum computers, an emerging technology expected to increase computing power and speed exponentially and transform the global economy as well as society as a whole.

D-Wave demonstrates performance advantage in quantum simulation of exotic magnetism

D-Wave Systems Inc. today published a milestone study in collaboration with scientists at Google, demonstrating a computational performance advantage, increasing with both simulation size and problem hardness, to over 3 million times that of corresponding classical methods. Notably, this work was achieved on a practical application with real-world implications, simulating the topological phenomena behind the 2016 Nobel Prize in Physics. This performance advantage, exhibited in a complex quantum simulation of materials, is a meaningful step in the journey toward applications advantage in quantum computing.

Counter-Intuitive Quantum Mechanics: State of Vibration That Exists Simultaneously at Two Different Times

When Light and Atoms Share a Common Vibe

An especially counter-intuitive feature of quantum mechanics is that a single event can exist in a state of superposition — happening both here and there, or both today and tomorrow.

Such superpositions are hard to create, as they are destroyed if any kind of information about the place and time of the event leaks into the surrounding — and even if nobody actually records this information. But when superpositions do occur, they lead to observations that are very different from that of classical physics, questioning down to our very understanding of space and time.

I’ve Worked in Game Development My Whole Career — Here’s Why I’m Learning Quantum Computing

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By Amir Ebrahimi — Principal Software Engineer · ‎Unity Technologies

What opened quantum computing up for me was realizing that it’s even more connected to our physical universe than classical computing is.

I’m at Unity, where I have a day job developing software for Barracuda, our CPU/GPU optimized inference engine for neural networks. I’ve been working in the video game industry since 2003, which is usually on the cutting edge of technology, so it’s surprising that I had never heard about quantum computing until about three years ago — I don’t know if I was ignoring it or if I simply wasn’t exposed to it. Back in 2018, one of my coworkers who was already interested in quantum computing shared a few links to the IBM Quantum Experience, and explained that you could use a quantum computer online. I took a look and bookmarked it, but didn’t actually try it out.