Seeqc
Overview
Single Flux Quantum (SFQ) digital logic chips that operate at cryogenic temperatures alongside quantum processors. Moves classical control electronics inside the cryostat, dramatically reducing wiring complexity — a prerequisite for scaling beyond tens of thousands of qubits.
0Key Milestones
- 2018: Founded by Dr. Oleg Mukhanov, John Levy, and Matthew Hutchings
- 2022: Demonstrated SFQ-based qubit control at millikelvin temperatures
- 2024: Partnership with Merck for pharmaceutical quantum applications
- 2025: Opened London facility for UK quantum ecosystem collaboration
Technology Approach
Seeqc solves a problem most people don’t know exists: the wiring bottleneck.
Current quantum computers route thousands of coaxial cables from room temperature (300K) down to the millikelvin stage where qubits operate. Each cable carries heat, adds noise, and takes up space. At 1,000 qubits, you need roughly 2,000 cables. At 1 million qubits, this approach physically breaks down.
Seeqc’s Single Flux Quantum (SFQ) chips operate at cryogenic temperatures alongside the qubits, replacing the entire cable stack with on-chip digital logic. This is infrastructure technology — not a quantum computer itself, but a critical component that everyone else will need.
Competitive Position
Strengths: Solves a universal scaling bottleneck. Every superconducting quantum computer eventually needs this (or something like it). Partners with Merck suggest pharmaceutical industry interest.
Challenges: Infrastructure company, not a quantum computer builder. Revenue depends on the success of others. Competing against internal R&D at IBM and Google.