Keumars is the technology editor at Live Science. He has written for a variety of publications including ITPro, The Week Digital, ComputerActive, The Independent, The Observer, Metro and TechRadar Pro. He has worked as a technology journalist for more than five years, having previously held the role of features editor with ITPro.
Physicists have created a new model for quantum computers that could more easily scale them up and make them more powerful than previously imagined.
These qubits can then be stitched together through quantum entanglement — where their data is linked across vast separations over time or space — to process calculations in parallel. The more qubits are entangled, the more exponentially powerful a quantum computer will become. But maintaining the stability between entangled qubits, so that you can process data, is difficult and requires complex electronics and equipment. Scaling up the qubits in a quantum computer so it's powerful enough to leapfrog today's most powerful supercomputers also represents a major hurdle — as you would also need to scale up that complex circuitry.
But the scientists propose that by giving each qubit extra frequencies, they can get them to work together to process calculations as if they were a part of a single quantum computer. This is despite being potentially separated over vast distances. It means that instead of one massive quantum processor that is difficult to maintain, you can use several smaller ones linked together.
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