Iceberg Quantum designs fault‑tolerant quantum computing architectures using low‑density parity‑check (LDPC) codes, achieving roughly ten‑fold reductions in physical qubit overhead compared with surface‑code approaches. Their modular code‑surgery gadgets and Fast Surgery technique enable arbitrary logical operations and accelerate logical gate cycles by up to 30×, and the blueprints are compatible with photonic, silicon spin, and trapped‑ion hardware platforms.
Funding
Funding not disclosed

Founders
Product
Problem
Current fault-tolerant quantum computing relies primarily on surface-code error correction, which demands thousands of physical qubits to encode a single logical qubit. This massive hardware overhead makes scalable, useful quantum computers prohibitively expensive and delays the deployment of real-world quantum applications.
Solution
Iceberg Quantum designs fault-tolerant quantum computing architectures built on low‑density parity‑check (LDPC) codes. By exploiting the higher encoding rates of LDPC codes, their designs achieve roughly ten‑fold reductions in the number of physical qubits required per logical qubit compared with surface‑code approaches. The company also develops modular “code surgery” gadgets that enable arbitrary logical operator measurements without extensive hardware reconfiguration, and a “Fast Surgery” technique that compresses time‑redundant measurement cycles into a single logical round, improving logical clock speed by up to 30×. These innovations are packaged as architecture blueprints and integration pathways for various hardware platforms, accelerating the path to utility‑scale quantum computers.
Target Audience
Primary customers are quantum hardware manufacturers and platform developers (photonic, silicon spin, trapped‑ion) seeking low‑overhead, high‑performance fault‑tolerant architectures to accelerate the launch of useful quantum processors.
Features
- LDPC‑based fault‑tolerant architecture (Pinnacle) delivering ~10× lower qubit overhead while supporting universal quantum computation
- Modular code‑surgery gadgets that can be reused across logical operations, reducing hardware complexity and enabling arbitrary logical measurements
- Fast Surgery method that transforms time redundancy into spatial redundancy, achieving 15–30× faster logical gate cycles
- Compatibility with multiple qubit technologies (photonic, silicon spin, trapped‑ion) through tailored LDPC code constructions
- Open research publications and preprints detailing explicit constructions, performance simulations, and spacetime overhead analyses
- Collaboration framework for co‑design with hardware partners, providing architecture integration and validation support