Tag Archives: NISQ

Quantum Software Stack

Quantum Software Stack – a brief overview

Since the birth of modern computing, progress has been supported by the evolution of an evermore sophisticated layered approach to software. A wide variety of majors and startups are vying to secure their place in the quantum software sector. To understand their plans we have to ask both what is similar and what is different…

Quantum Hardware Stack

Quantum Hardware Platforms – a brief overview

To understand the ambitious roadmaps of quantum hardware players we have to start by understand the contrasting advantages and challenges of each of their technology platforms. As we seek to scale up these solutions, the specific flavour of the technology being employed becomes increasingly important. This overview is taken from a presentation originally delivered at…

Quantum Algorithms Outlook 2021

Quantum Algorithms Outlook 2021

Despite strong progress, demonstrating actual quantum advantage with early devices is still an elusive challenge. Expert opinion differs markedly on where and when initial value will come. Future large scale machines look great, but the overheads look daunting. With current error correction methods even a one million physical qubit machine may only be a modest…

Quantum Hardware Outlook 2021

Quantum Hardware Outlook 2021

China’s quantum supremacy demonstration may grab headlines, but not yet leadership in the quantum computing race. Leading hardware groups have firmed-up their development roadmaps for the marathon ahead and error correction has become a key part of the story. The challenge of scaling-up remains pre-eminent. A growing number of quantum majors, startups and institutes are…

Quantum hardware – into the quantum jungle

The quantum computing landscape has been transformed by a surge of commercial startups pursuing very different technical paths. Investors and pioneers must prepare themselves for a challenging journey ahead. A growing list of major, midsized and startup companies have joined the quantum computing quest. However today’s prototype devices must be radically scaled up before they…

dilution fridge

Control and measurement plane

As one of the first quantum platforms to start to significantly scale-up, superconducting qubit platforms have been first to face a series of control plane challenges. These are complicated by the need to work down to extreme cryogenic temperatures. Pioneers face challenges across cryogenics, control electronics and control software. Cryogenics The first challenge for many…

Quantum software – beneath the quantum hype

Commercial activity around quantum computing has risen to fever pitch over the last year. Many point to the traditional cycle of hype and consolidation in tech markets. Some have become quick to call ‘bullshit’ much of the activity at the current commercial frontier. Others predict a coming quantum winter. How can investors and early adopters…

Quantum Hardware Outlook

Quantum Hardware Outlook 2020

2019 saw Google finally demonstrate quantum supremacy. Competitors such as IBM reminded us that this was just an opening skirmish in what will be a long campaign. In 2020 we will see paths divide as competing companies and technologies face-up to the quantum chasm blocking the way to large scale quantum computers. The hard road…

Quantum Algorithms Outlook

Quantum Algorithms Outlook 2020

Contrary to many reports there are set to be immediate applications even for early devices. Some will be controversial. However in other areas timelines look over-hyped. 2020 will be a key year to prove the naysayers wrong. Will clients see early value? Despite all the fuss, quantum processors actually run more slowly than conventional processors.…

Quantum supremacy

Quantum supremacy – a new era?

Google claims quantum supremacy – the ability to perform a calculation beyond the reach of conventional computers. This is a landmark scientific, mathematical and technical achievement. But as many such as IBM point out we should all beware of hype. The road to general purpose quantum computing remains a long one. Google has published a…