## Rigetti Computing Introduces World’s First Scalable Multi-chip Quantum Processor

BERKELEY, Calif., June 29, 2021 (GLOBE NEWSWIRE) -- Rigetti Computing, a pioneer in full-stack quantum computing, announced today it is launching the world's first multi-chip quantum processor. “We’ve developed a fundamentally new approach to scaling quantum computers,” says Chad Rigetti, founder and CEO of Rigetti Computing. Rigetti has eliminated these roadblocks by developing the technology to connect multiple identical dies into a large-scale quantum processor. “Scalability is a central objective across the entire quantum computing industry. “Rigetti's modular approach demonstrates a very promising way of approaching these scales.”About Rigetti ComputingRigetti Computing is a full-stack quantum computing company that builds superconducting quantum computing systems and delivers access to them over the cloud.

### GLOBENEWSWIRE

06/29/2021

## Strong Quantum Computational Advantage Using a Superconducting Quantum Processor

Scaling up to a large number of qubits with high-precision control is essential in the demonstrations of quantum computational advantage to exponentially outpace the classical hardware and algorithmic improvements. Here, we develop a two-dimensional programmable superconducting quantum processor, Zuchongzhi, which is composed of 66 functional qubits in a tunable coupling architecture. To characterize the performance of the whole system, we perform random quantum circuits sampling for benchmarking, up to a system size of 56 qubits and 20 cycles. The computational cost of the classical simulation of this task is estimated to be 2-3 orders of magnitude higher than the previous work on 53-qubit Sycamore processor [Nature 574, 505 (2019)]. We estimate that the sampling task finished by Zuchongzhi in about 1.2 hours will take the most powerful supercomputer at least 8 years. Our work establishes an unambiguous quantum computational advantage that is infeasible for classical computation in a reasonable amount of time. The high-precision and programmable quantum computing platform opens a new door to explore novel many-body phenomena and implement complex quantum algorithms.

### ARXIV

06/28/2021

## Quantum Computing 40 Years Later

Forty years ago, Richard Feynman proposed harnessing quantum physics to build a more powerful kind of computer. Realizing Feynman's vision is one of the grand challenges facing 21st century science and technology. In this article, we'll recall Feynman's contribution that launched the quest for a quantum computer, and assess where the field stands 40 years later.

### ARXIV

06/19/2021

## How Germany is Building a Quantum Computing Ecosystem

This year, Germany kicked off its Roadmap Quantencomputing to lay the groundwork for a German-based quantum computing ecosystem.

### MEDIUM

06/15/2021

## What Makes Quantum Computing so Hard to Explain?

I approach this as a public service and almost my moral duty as a quantum computing researcher. The reality is that even if you removed all the bad incentives and the greed, quantum computing would still be hard to explain briefly and honestly without math. This is what I’ve come to think of as the fundamental misstep of quantum computing popularization, the one that leads to all the rest. Note that, after explaining all this, I still haven’t said a word about the practical difficulty of building quantum computers. Once someone understands these concepts, I’d say they’re ready to start reading — or possibly even writing — an article on the latest claimed advance in quantum computing.

### QUANTA MAGAZINE

06/08/2021

## Honeywell Quantum, Cambridge Quantum Computing Form Joint Venture

Honeywell International Inc (HON.O) and quantum computer software startup Cambridge Quantum Computing (CQC) on Tuesday announced they will form a joint venture, integrating Honeywell’s quantum computer unit with the software maker. Honeywell will invest between $270 million and $300 million in the new company and have 54% of the new venture.

### REUTERS

06/08/2021

## Startup Strangeworks Now Offers Ibm's Quantum Computers on Its Open Platform

Users will then be able to access IBM Quantum backends, and program using Qiskit and OpenQASM, through the Strangeworks cloud platform.

### IBM

06/03/2021

## Google Aims for Commercial-Grade Quantum Computer by 2029

Alphabet Inc.’s Google plans to spend several billion dollars to build a quantum computer by 2029 that can perform large-scale business and scientific calculations without errors, said Hartmut Neven, a distinguished scientist at Google who oversees the company’s Quantum AI program.

### The Wall Street Journal

05/18/2021

## 16 Companies Developing Quantum Algorithms

TQD thought it time to put out its own list of the players in the quantum computing industry that are developing quantum algorithms to service the growing ecosystem, based on the wealth of data available at The Quantum Insider (TQI), our very own data platform.

### THE QUANTUM DAILY

05/12/2021