EeroQ
Overview
One of the most unconventional architectures: electrons floating on the surface of liquid helium. The atomically smooth helium surface could provide extremely long coherence times, free from the crystal defects that plague solid-state approaches.
0Key Milestones
- 2018: Founded from University of Chicago and Argonne National Lab research
- 2023: Demonstrated electron trapping on helium surface
- 2024: Seed funding round completed
Technology Approach
EeroQ’s approach is genuinely exotic: individual electrons floating above the surface of superfluid liquid helium serve as qubits. Each electron is trapped in a quantum state above the helium by a combination of its own image charge and applied electric fields.
Why helium? The surface of superfluid helium is the smoothest surface in nature — atomically perfect, with no crystal defects, grain boundaries, or impurities. This could provide coherence times far beyond what solid-state qubits achieve, where defects in the crystal lattice are a primary source of decoherence.
The control electronics are compatible with standard semiconductor manufacturing, meaning the qubit technology is exotic but the control infrastructure is conventional.
Competitive Position
Strengths: Potentially superior coherence times. Unique physics with no direct competitors. Compatible with existing semiconductor manufacturing for control.
Challenges: Very early stage — fundamental physics demonstrations, not yet a computing platform. Extremely small team and funding. Unproven at any meaningful qubit count. High-risk, high-reward bet.