Enlarge / The current generation of hardware. (credit: D-Wave) Tracking quantum computing has been a bit confusing in that there are multiple approaches to it. Most of the effort goes toward what are called gate-based computers, which allow you to perform logical operations on individual qubits. These are well understood theoretically and can perform a […]
Enlarge / Google’s Sycamore processor. (credit: Google) The current generation of quantum hardware has been termed “NISQ”: noisy, intermediate-scale quantum processors. “Intermediate-scale” refers to a qubit count that is typically in the dozens, while “noisy” references the fact that current qubits frequently produce errors. These errors can be caused by problems setting or reading the […]
Enlarge (credit: QuantWare) Early in its history, computing was dominated by time-sharing systems. These systems were powerful machines (for their time, at least) that multiple users connected to in order to perform computing tasks. To an extent, quantum computing has repeated this history, with companies like Honeywell, IBM, and Rigetti making their machines available to […]
Enlarge / It may look nearly featureless, but it’s meant to contain 80 qubits. (credit: Rigetti Computing) Today, a quantum-computing startup has announced that it will take a significant departure in its designs for future quantum processors. Rather than building a monolithic processor as everyone else has, Rigetti Computing will build smaller collections of qubits […]
Enlarge / The line down the middle is where the trapped ions reside. (credit: Honeywell) About a year ago, Honeywell announced that it had entered the quantum computing race with a technology that was different from anything else on the market. The company claimed that because the performance of its qubits was so superior to those […]
Enlarge (credit: Xanadu) Excuse me a moment—I am going to be bombastic, overexcited, and possibly annoying. The race is run, and we have a winner in the future of quantum computing. IBM, Google, and everyone else can turn in their quantum computing cards and take up knitting. OK, the situation isn’t that cut and dried […]
(credit: D-Wave) Early on in D-Wave’s history, the company made bold claims about its quantum annealer outperforming algorithms run on traditional CPUs. Those claims turned out to be premature, as improvements to these algorithms pulled the traditional hardware back in front. Since then, the company has been far more circumspect about its performance claims, even […]
A little U.K. startup has created an algorithm which greatly lowers the degree of calculating power required to run a metric which may pave the way for creation of new materials. Researchers from the business, Phasecraft, together with researchers in the University of Bristol, revealed {} issue from quantum physics– even just one that’s too […]
After the lately overdue daredevil Chuck Yeager became the first person to break the sound barrier in 1947, observers understood it from the thunderous boom which rang out on the Mojave desert, indicating the accomplishment. For many its epochal-sounding importance, no glorious sonic clap conveys the accomplishment of “quantum supremacy. ” No more roar pierces […]
Chinese scientists claim to have constructed a quantum computer which can execute specific computations almost 100 trillion times faster compared to the planet’s most sophisticated supercomputer, representing that the very first landmark in the nation’s attempts to develop the technologies. The investigators also built a quantum computer model which can find around 76 photons through […]