TITAN / Dimon-Coaxmon Quantum Processor by Oxford Quantum Circuits (OQC): status and timeline

TITAN / Dimon-Coaxmon Quantum Processor

Superconducting processor using Dimon and Coaxmon architectures with error detection. Production systems in data centers with cloud access, achieving 20x stability over standard transmons.

DeployStage 4 of 5

Series C closed; systems deployed; targeting 50,000+ logical qubits by 2034.

Updated Mar 2025Checked 10 Oct0 updates this week

Milestones

Next · Commercial deployments in Equinix and Digital Realty data centers

Superconducting circuits research begins at University of Oxford2012Complete.
OQC founded as University of Oxford spinoff2017Complete.
Series A funding closesJul 2022Complete.
Toshiko 32-qubit processor announced in private betaNov 2023Complete.
Achieves 25-nanosecond two-qubit gates at 99.8% fidelityMar 2025Complete.
Series C closes at £260M ($350M), Europe's largest quantum roundJun 2026Complete.
Commercial deployments in Equinix and Digital Realty data centersTarget 2026Current milestone.

Most important updates

Oxford Quantum Circuits achieves 25-nanosecond two-qubit gates at 99.8% fidelityMar 2025

Upcoming

2026Commercial deployments in Equinix and Digital Realty data centers (next)
2028200 logical qubits milestone
203450,000 logical qubits on wafer

Current obstacles

Manufacturing reproducibilityQubit parameter variability between wafers requires characterization and calibration; consistent yield at scale is challenging.
Control electronics integrationThousands of control lines must fit in the cryogenic environment; packaging complexity grows with system size.

Physics limits

Cooling power of dilution refrigeratorsCryogenic systems cool only a limited number of qubits; multiplexing and heat dissipation set practical density limits.
Coherence times limited by materialsSuperconducting qubit coherence depends on material quality and interfaces; losses accumulate over microseconds to milliseconds.

How it works

3 parts

Transmons

Dimon and Coaxmon architectures

Tunable transmon and coplanar resonator designs optimized for fast gates and silicon wafer manufacturability.

Detection

Error detection without full correction

Circuit-level error detection avoids massive qubit redundancy, enabling incremental progress to fault tolerance.

Deployment

Quantum-compute-as-a-service

Systems in standard data center infrastructure with cloud APIs, letting enterprises use quantum without managing cryogenics.

Spec sheet

Spec	TITAN / Dimon-Coaxmon Quantum Processor
Two-qubit gate time	25 ns^R (reported)
Two-qubit gate fidelity	99.8%^R (reported)
Logical-to-physical qubit ratio target	1:1^R (reported)
Target logical qubits per 300mm wafer	50,000+^R (reported)

^R reported by the company

Update log

1 update

Mar 2025

Major: Oxford Quantum Circuits achieves 25-nanosecond two-qubit gates at 99.8% fidelityPressHardware

About Oxford Quantum Circuits (OQC)

The team behind TITAN / Dimon-Coaxmon Quantum Processor

Oxford Quantum Circuits (OQC)

Superconducting quantum processor, fastest two-qubit gates

OQC builds application-optimized superconducting quantum computers for commercial deployment. Founded in 2017 from Oxford University, it operates as a quantum-compute-as-a-service provider. In June 2026, OQC raised £260M in Series C, Europe's largest quantum round.

Operates Quantum-Compute-as-a-Service via cloud, data center deployment and APIs; systems in Equinix & Digital Realty.
Achieved 25-nanosecond two-qubit gates, industry's fastest; targets 50,000+ logical qubits per 300mm wafer.
Series C at £260M ($350M) in June 2026, Europe's largest quantum round; led by Bullhound Capital & UK government.

oqc.tech (opens oqc.tech)Company profile →

Founded: 20179 yrs
Headquarters: United Kingdom
Status: Private
Valuation: $2BprivateJun 2026
Raised: $501M4 rounds
Last round: Series C · $350MJun 2026
Works in: QuantumSuperconducting
Coverage: 1 program · 5 updateslatest 1 Jun 2026checked 10 Oct
Lead investors: Bullhound CapitalSBI InvestmentLansdowne PartnersUniversity of Tokyo Edge Capital
Partners: Equinix (opens equinix.com)Digital Realty (opens digitalrealty.com)NVIDIA (opens nvidia.com)Riverlane (opens riverlane.com)
Investors: British Business Bank (opens britishbusinessbank.co.uk)
People: Peter Leek (opens physics.ox.ac.uk)Founder & Chief Scientific OfficerGerald MullallyCEO

Spec

TITAN / Dimon-Coaxmon Quantum Processor

Two-qubit gate time

25 ns^R (reported)

Two-qubit gate fidelity

99.8%^R (reported)

Logical-to-physical qubit ratio target

1:1^R (reported)

Target logical qubits per 300mm wafer

50,000+^R (reported)