Quantum computers have a dirty little secret: for all the talk of qubits and superposition, the thing actually strangling progress is boring old wiring. Cram in a million qubits and you need a million control lines, which turns your quantum computer into a very expensive, very cold plate of spaghetti. EeroQ just found a way around that.

Electrons Surfing on Helium, Controlled by Almost No Wires

EeroQ's approach traps individual electrons on the surface of superfluid helium and uses them as qubits, moving them around like a classical CCD camera sensor shuffles charge. The company's new "Wonder Lake" chip demonstrated control of 128 independent transport channels using just 14 external control lines, via what it calls an Addressable Gate Array scheme.

In testing, the chip shuttled electron packets across the surface for more than a billion cycles with zero detectable charge loss, and the whole thing was fabricated on SkyWater Technology's ordinary 130nm commercial silicon process — no exotic fab required.

Why Wiring Is Quantum Computing's Silent Killer

Scaling superconducting or trapped-ion qubits usually means scaling wiring linearly, which becomes physically impossible somewhere in the low thousands of qubits. EeroQ's architecture claims a path toward roughly a million qubits using under 50 control lines — a scaling curve that actually looks survivable.

The unglamorous part — using a commercial CMOS foundry instead of bespoke cryogenic hardware — might matter more than the physics. It means this approach could get cheaper and more manufacturable exactly when it needs to, instead of staying a beautiful lab demo forever.

Turns out the path to a million qubits might run through the same fabs already stamping out ordinary chips — just with a lot more helium.

Source: Quantum Computing Report