D-line QPUs | Build bigger, scale faster

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D-Line Quantum Processing Units

Build bigger, scale faster

The D-Line offers the ideal platform for system integrators to reach higher qubit counts and push NISQ applications to new limits. It features tunable transmon qubits with fixed couplers in a streamlined architecture. With its emphasis on simplicity and scalability, the D-Line is the perfect choice for building large, reliable, and cost-effective quantum systems.

Join a roadmap towards 10k+ qubit processors, our experts are ready to guide you.

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Our path to 10K qubits

Planar Architecture

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5 qubits

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Soprano-D5

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Soprano-D5 is the ideal entry point for system integrators beginning their quantum journey. Its streamlined 5-qubit architecture provides a rapid path to integration, control-stack development, and early system bring-up.

Planar Architecture

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21 qubits

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Contralto-D21

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Contralto-D21 expands to 21 qubits in a compact, integration-friendly layout, enabling more complex experiments while maintaining simplicity in wiring and control. It sets the foundation for efficient scaling within the D-Line roadmap.

Shipping in 2026

64 qubits

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Tenor-D64

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Tenor-D64 introduces a 64-qubit architecture optimized for high-density layouts and stable system performance. It provides a powerful platform for scaling NISQ-era applications and driving system-level development forward.

Trusted by

"QuantWare’s Contralto-D QPU and Crescendo TWPA, with their high qubit coherence and effective circuit design in terms of qubit frequencies, coupling parameters, and connectivity, were essential in enabling us to accelerate both hardware and software development, significantly advancing our universal fault-tolerant quantum computing research."

Dr. SungUn Cho

PhD Researcher

Frequently asked questions

What specific applications are D-Line quantum processors best suited for?

D-Line quantum processors, featuring fixed-frequency transmon qubits, are optimized for algorithms requiring high gate fidelity and maximum coherence. This makes them ideal for short-depth NISQ experiments, small-scale quantum chemistry simulations, and benchmarking where stability is paramount. Full technical specifications are available in our downloadable product sheets.

How does the 'Quantum Open Architecture' support integration with my existing quantum system and control stack?

Our Quantum Open Architecture ensures the D-Line QPU is control-stack agnostic and integrates seamlessly. This means full compatibility with leading third-party control software/hardware systems, such as QuantrolOx’s Quantum EDGE or Q-CTRL’s Boulder Opal, enabling you to choose the best components for your build rather than being locked into a proprietary system.

What is the price of a D-Line quantum processor?

The price of our D-Line quantum processors depends on the specific model (e.g., qubit count, topology) and the quantity ordered. Please contact us directly for a precise quote tailored to your research or commercial system needs.

What level of expert technical support is included for initial processor setup and system integration?

We provide comprehensive expert support and documentation covering installation, cryogenic integration, and optimal pulse-level use. Each account is assigned an internal Customer Success Engineer and an Application Scientist to ensure a fast, efficient setup and long-term performance optimization.

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Foundry Services

Hyper-scale your qubit design with VIO™

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Packaging Services

Hyper-scale your qubit chip with VIO™