EeroQ has announced a significant breakthrough in quantum hardware scalability by demonstrating a control architecture capable of managing up to one million qubits with fewer than 50 physical control lines. This achievement addresses the “wire problem”—a critical bottleneck in quantum computing where the requirements in other implementations may require thousands of individual cables to address and control the qubits. This creates insurmountable thermal and engineering challenges. A demonstration of this new approach was performed using the company’s Wonder Lake chip, a device manufactured using a 130nm process technology at the SkyWater Technologies semiconductor foundry in the United States.
The EeroQ platform utilizes electrons trapped on the surface of superfluid helium as qubits. Unlike solid-state spin qubits, which are often fixed in place, these electrons are highly mobile and can be transported across the chip using three-phase voltage sequences similar to those used in classical Charge-Coupled Device (CCD) image sensors. According to technical results published in a supporting paper, the team demonstrated the selective shuttling of electron packets across millimeter-scale distances through 128 independent transport microchannels. Most notably, the architecture utilizes an Addressable Gate Array (AGA) wiring scheme, which allows any of the 128 channels to be uniquely addressed using only 14 control voltages, establishing a logarithmic scaling path for future high-density qubit arrays.
Experimental data confirmed the robustness of this transport mechanism, with over 109 shuttling operations completed without detectable electron loss. The research also provided evidence of single-electron isolation and control, a fundamental prerequisite for operating the system as a large-scale quantum processor. By leveraging standard 130 nm fabrication processes, EeroQ intends to integrate the specialized control electronics directly into the qubit host device, facilitating all-to-all connectivity and high-fidelity gate operations within a planar, manufacturable form factor. This demonstration positions the “electrons on helium” (eHe) modality as a viable alternative to trapped-ion and superconducting systems, particularly for implementing complex, fault tolerant quantum circuits that require thousands of logical qubits.
Read the official press release from EeroQ here and the detailed technical study here.
January 15, 2026
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