Quantum computing company EeroQ which pioneers electron-on-helium technology, recently revealed its ability to control single electrons at temperatures more than 100x higher than previous experiments. EeroQ’s findings were published in Physical Review X (PRX), the world’s premiere peer-reviewed journals for physics. The paper is titled “Sensing and Control of Single Trapped Electrons Above 1 Kelvin”. EeroQ was founded in 2017 and is currently located in Chicago.
The research confirms the first demonstration of controlling and detecting individual electrons trapped on superfluid helium at temperatures above 1 Kelvin. The results were accomplished by using on-chip superconducting microwave circuits which are fully compatible with quantum hardware:
This breakthrough confirms that electron-on-helium qubits can potentially be manipulated and read out at higher temperatures than previously thought possible, reducing a key barrier to scalable quantum computing, said Johannes Pollanen, co-founder and Chief Science Officer at EeroQ. Publishing in PRX underscores both the scientific rigor and the industry importance of this advance.

Today, quantum computers because of heat dissipation issues, require ultra-low temperatures near 10 millikelvin causing severe challenges in scaling. Bigger and practical quantum processors can be built by trapping and controlling individual electrons at temperatures more than 100 times higher (above 1 Kelvin):
The findings also validate long-standing theoretical predictions that electrons on helium can provide exceptionally pure and long-lived qubits, while reducing the extreme cooling demands that limit other approaches.
Maintaining stable, long-coherence qubits is enabled by floating single electrons on superfluid helium. EeroQ’s expertise in physics, engineering, and nanofabrication transforms research into scalable processors:
By integrating the electron-on-helium platform with standard superconducting circuits, EeroQ aims to build quantum computers that are both powerful and practical to operate.
About EeroQ
EeroQ is a Chicago-based quantum computing company building a quantum computer (QC) using electrons on helium. Founded in 2017, EeroQ’s unique approach to building a QC leverages today’s existing chip fabrication technology (CMOS), allowing the company to scale rapidly using a fraction of the resources most companies require. EeroQ is also helping to create early ethical and policy guidelines to maximize the positive impact of QC.