Quantum bits are claimed to be more than 99% accurate.
Two teams of researchers working at UNSW Australia have developed two types of qubits or quantum bits, capable of processing quantum data with accuracy above 99%.
The new quantum bits will help create of super powerful quantum computers.
The research has been led by UNSW director of the Australian National Fabrication Facility professor Andrew Dzurak and UNSW’s School of Electrical Engineering and Telecommunications associate professor Andrea Morello.
Professor Dzurak’s the team used a device similar to MOSFETs, silicon transistors used in consumer electronics to create artificial atom qubit, while professor Morello’s team used natural phosphorus atom to develop the quitbits.
Professor Morello said: "The phosphorus atom contains in fact two qubits: the electron, and the nucleus. With the nucleus in particular, we have achieved accuracy close to 99.99%.
"That means only one error for every 10,000 quantum operations."
The teams placed the natural and artificial atom qubits inside a thin layer of specially purified silicon consisting of silicon-28 isotope, which was provided through collaboration with University in Japan Professors Keio and Kohei Itoh.
Unlike natural silicon, the purified silicon is non-magnetic which does not disturb the quantum bit.
The team was able to store quantum information in phosphorus nucleus for more than 30 seconds, which was not possible before, and they are planning to build pairs of highly accurate quantum bits.
Large quantum computers are likely to have thousands or millions of qubits which would integrate both natural and artificial atoms.
Professor Dzurak said: "For quantum computing to become a reality we need to operate the bits with very low error rates."
Professor Morello added: "We’ve now come up with two parallel pathways for building a quantum computer in silicon, each of which shows this super accuracy."