Briefs · Frontier Science
A Million Qubits, Fewer Than Fifty Wires
A million qubits, fewer than fifty wires. That is the whole story.
EeroQ demonstrated a control architecture capable of managing up to one million qubits with fewer than 50 physical control lines. The Wonder Lake chip, built on a 130-nanometre process at SkyWater Technology, an American commercial foundry, traps electrons on the surface of superfluid helium and uses them as qubits.
The electrons move. They are transported across millimetre-scale distances on the chip, between readout and operation zones, at high fidelity. The chip carries 128 independent transport microchannels, and its Addressable Gate Array can pick out any one of those 128 channels using only 14 control voltages.
The numbers are the argument. More than a billion shuttling operations ran without detectable electron loss. Other approaches need thousands of wires and cables to reach far fewer qubits; EeroQ calls this the “wire problem”, and claims to have solved it by moving the qubits instead of the wiring.
Electrons, escorted across the chip, on a film of helium colder than deep space. It sounds like science fiction. It is, after all, a foundry chip.
Conclusion: the wire problem is not a wiring problem, but rather a traffic problem — and EeroQ just built the motorway.
Read the original at Quantum Computing Report
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