Scientists Make New Discovery in Quantum Computing

Scientists from the University of New South Wales in Sydney, Australia, have announced that there is a new breakthrough discovery in quantum computing which will allow researchers and people to control millions of spin bits. The group of researchers consider their design the “missing jigsaw piece” in quantum computer architecture.

This is according to a new research published in the journal Science Advances claimed that researchers have identified a technique which will enable them to control millions of spin qubits.

The group of researchers consider their design the “missing jigsaw piece” in quantum computer architecture.

It should be recall that, to date, quantum scientists and computer engineers have only been able to use proof-of-concept models of quantum processors that work with just a few spin qubits, the quantum equivalent of a bit.

In a traditional computer, a bit – the single unit of information, either a 0 or a 1 – is stored in the electronic circuit of the computer itself, specifically in the capacitor of a memory cell, with the value depending on whether the capacitor is charged or discharged.

Spin qubit quantum computers replace this capacitor with a single quantum particle – the electron – and its “spin” value.

While explaining the spin quantum, Dr Jarryd Play, a researcher at UNSW said that up until this point, controlling electron spin qubits relied on researchers delivering microwave magnetic fields by putting a current through a wire right beside the qubit.

He explained further that this poses some real challenges if one want to scale up to the millions of qubits that a quantum computer will need to solve globally significant problems, such as the design of new vaccines.

Dr Pla concluded that the issue is that these chips need to operate at extremely cold temperatures, below -270C, and introducing more wires would compromise the temperature of the chip and interfere with the reliability of the qubit. So they come back to only being able to control a few qubits with this wire technique.

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