Small, diamond-based quantum computers could be in our hands within five years

Small, affordable, ‘plug-and-play’ quantum computing is one step closer. An Australian startup has won $13 million to make its diamond-based computing cores shine. Now it needs to grow. ANU research spinoff Quantum Brilliance has found a way to use synthetic diamonds to drive quantum calculations. Now it’s on a five-year quest to produce commercially viable … Continue reading Small, diamond-based quantum computers could be in our hands within five years

Breakthrough in quantum computing

Quantum engineers from UNSW Sydney have made a critical breakthrough in the development of quantum computing technology, solving a problem that has long frustrated scientists and until now represented a major roadblock to the development of the next generation of computers. The problem in question involves spin qubits, which are the basic units of information … Continue reading Breakthrough in quantum computing

China demonstrates most powerful quantum computer

A Chinese research team has surpassed Google, building a quantum computer that completed a calculation in just over an hour that would take classical computers more than eight years to perform. It’s the latest milestone in a line of exciting quantum computing developments across the last two years. In that time, researchers across the world … Continue reading China demonstrates most powerful quantum computer

Y2Q: quantum computing and the end of internet security

What if you woke up one morning to find all locks had disappeared? Not just the one on your front door, or the lock on your bicycle – but the ignition on your car, and even the massive tumbler on the vault in your bank. All of these very valuable things these locks protect would … Continue reading Y2Q: quantum computing and the end of internet security

First entanglement-based quantum network

A team researchers from quantum-computing company QuTech in the Netherlands has established the first multi-node quantum network, by connecting three quantum processors through the mysterious process of entanglement. This eureka-style moment – reported in the journal Science – marks the latest step in a decade of quantum computing research, with the ultimate goal of creating a safe, un-hackable and fast … Continue reading First entanglement-based quantum network

In search of that quantum advantage

December is a hectic time of year for everyone, but quantum physicists seem to be especially busy. In particular, two new studies suggest researchers may be getting closer to achieving “quantum advantage”, the point at which quantum computing can solve a problem that no classical computing can in a feasible amount of time – that … Continue reading In search of that quantum advantage

Natural radiation can mess with qubits

Natural radiation can limit the performance of superconducting quantum bits and thus potentially the operation of quantum computers, according to new research in the US. Scientists may have to shield these “qubits”, perhaps by building computers underground or designing them so they are tolerant to radiation’s effects, a team from Pacific Northwest National Laboratory (PNNL) … Continue reading Natural radiation can mess with qubits

Where robotics meets quantum computing

Australian physicists say they have adapted techniques from autonomous vehicles and robotics to efficiently assess the performance of quantum devices. Writing in the journal Quantum Information, a University of Sydney team reports that its new approach has been shown experimentally to outperform simplistic characterisation of these environments by a factor of three, with a much … Continue reading Where robotics meets quantum computing

Wiring quantum computers

Physicists from Japan and Australia have proposed a novel two-dimensional design for a quantum computer that can be constructed using existing integrated circuit technology.  Their work is explained in the video below. The full paper can be found in the New Journal of Physics. Credit: Tokyo University of Science, Japan The research was led by Tokyo … Continue reading Wiring quantum computers

The potential of ‘hot qubits’

Can we create warmer, cheaper and more robust quantum computing just using conventional silicon chip foundries? Yes, suggests an Australian-led research team in a proof-of-concept paper in the journal Nature, which describes a way around one of the biggest constraints to quantum computers achieving their potential. Currently most such computers will only work at fractions … Continue reading The potential of ‘hot qubits’

Scientists crack 58-year-old quantum mystery

Curiosity-driven research can yield exciting discoveries. The latest is an accidental breakthrough by Australian engineers that has unintentionally solved a 58-year old mystery in quantum science. As described in the journal Nature, they have worked out how to do what Nobel Laureate Nicolaas Bloembergen first suggested in 1961 but no-one has yet cracked: control the nucleus of a single atom … Continue reading Scientists crack 58-year-old quantum mystery