#UK Riverlane creates quantum computing history

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Cambridge technology sensation Riverlane has created history in the commercial development of quantum computers with its latest success – and earned a handsome tribute from Arm co-founder Hermann Hauser.

The Cambridge University spin-out’s successful UK trial of a high-performance, universal operating system is a landmark moment for maximising the power and reach of quantum computing.

In Deltaflow.OS, which has been created by Riverlane, applications are implemented on quantum hardware through a carefully chosen interface, or “hardware abstraction layer.”

Since this approach enables rapid control of operations, Deltaflow.OS will improve the performance for near-term quantum computing applications by orders of magnitude compared to other interfaces, such as those used by IBM. 

For example, computational chemistry applications important in drug discovery or materials design will run 30 times faster on near-term devices. 

When carrying out quantum error-correction, which is essential to build large and reliable quantum computers, the performance improvement due to Deltaflow.OS will be on the order of 1000 fold, the business reveals.

A standardised definition of this interface makes Deltaflow.OS portable to all four leading qubit technologies.

Riverlane CEO Dr Steve Brierley said: “We have solved a really important problem in quantum computing: how hardware and software interact whilst teasing the highest possible performance out of a quantum computer.

“This finally shifts the complexity of designing quantum computer applications from hardware to software.”

Quantum computers currently producing calculations, such as those used by Google and IBM, run on bespoke operating systems invisible to external users. These are not portable to other hardware technologies or other labs. 

To external users, IBM offers an interface set at a very high level which leads to low-performance implementations.

“Quantum computing is currently where classical computing would be if it had to painstakingly produce an individual, tailored operating system for every existing conventional computer in the world. Not very far, in other words,” said Dr Brierley.

The trial demonstrated that Deltaflow.OS successfully completed a key technical task using the hardware abstraction layer – the ‘hello world’ requirement of quantum computing – known as a ‘Rabi oscillation.’

The task was carried out on a quantum computer at the University of Oxford in partnership with quantum hardware company Oxford Ionics, which operates with trapped-ion technology.

As Business Weekly previously revealed, a Riverlane-led consortium, consisting of Oxford Ionics, Hitachi Europe, Arm, the National Physical Laboratory as well as hardware startups Oxford Quantum Circuits, Seeqc, Universal Quantum and Duality Quantum Photonics, was recently awarded a £7.6 million grant by the UK government to bring Deltaflow.OS to market.

Within this grant, Deltaflow.OS will be installed on all working quantum computers in the UK which includes all four quantum hardware technologies: trapped-ion qubits, superconducting qubits, silicon qubits and photonic qubits.

Standardising the software-hardware interaction for quantum computers under the leadership of the National Physical Laboratory, this will transform the UK quantum technology ecosystem and make the UK a world-leading force in quantum computing.

Dr Hauser, who co-founded the iconic Cambridge success stories Acorn Computers and superchip architect Arm. lauded Riverlane’s progress in his capacity as venture partner of Amadeus Capital – an investor in the business.

He said: “Defining the right interface between hardware and software was instrumental for the success of the microprocessor. I am excited about the UK quantum computing industry taking steps for this success story to repeat itself.”

Quantum computers consist of fragile qubits equivalent to bits, the smallest unit of data on a traditional computer. Qubits require a complex control system, which an operating system must run on, to keep them operable.
Deltaflow.OS writes code directly onto all elements of that control system. 

Since the fastest elements, FPGAs, can be harnessed for time-critical tasks this improves reliability and greatly increases the speed at which a calculation can be performed. 

Applications written in Deltaflow.OS are faster than those written in IBM’s Qiskit because they make use of FPGAs where necessary.

The increased computing power promised by quantum computers is expected to drive innovation in the chemical industry, pharmaceutical industry and healthcare. 

In the long term, quantum computers will transform cryptography and may have an impact on machine learning, artificial intelligence, agriculture, manufacturing, finance and energy.

Backed by leading venture-capital funds and the University of Cambridge, Riverlane develops software that transforms quantum computers from experimental technology into commercial products. 

It teases the highest possible performance out of quantum software to reach quantum advantage sooner. 

By making its software portable across technologies, early adopters don’t need to choose which technology to pursue. The company goes deep into the stack so that hardware partners can focus on the physics and build better full-stack solutions. 

Riverlane also works with the chemical, pharmaceutical and materials industries to improve algorithms and specify early ‘killer’ applications of quantum computers. 

from Business Weekly https://ift.tt/2EIwVra

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