Quantum Control for
Superconducting Qubits

Trusted by leading quantum industry and labs worldwide

Solution for high-fidelity quantum operations

Qblox offers fully integrated quantum control stacks for superconducting qubits. These stacks include all necessary instrumentation and software for controlling and reading out superconducting qubits, with signal generation and acquisition capabilities up to 18.5 GHz. Our modular approach enables researchers to configure the modules and re-configure the existing modules according to their needs. This approach also makes the system extremely scalable, making our solution ideal for both university research labs and industry R&D labs aiming to scale up their quantum systems.

SELECT QUBIT OPERATION:
/ SINGLE QUBIT GATES

QCM-RF II & QRC: The Integrated Cluster for Single-Qubit Operations

/ MODULE
QCM - RF
Qubit Control Module
/ MODULE
QRC
Qubit readout and conrtol

Manipulate quantum states precisely through high SNR and an exceptionally clean spectral response. .

Push your gates into the <20 ns regime with 1 ns pulse-shaping precision, accurately executed through fast rise times and low analog ringing.

Benchmark qubit performance via single-qubit randomized benchmarking or gate-set tomography.

Speed up your experiment by leveraging active reset to initialize
your qubit within 400 ns between consecutive runs.

/ TWO QUBIT GATES

Powering Multi-Qubit Systems: The QCM Integrated Gate Control Cluster

/ MODULE
QCM
Qubit Control Module

Control flux-tunable qubits and couplers from a single source,
and say goodbye to bias-T distortions.

Elevate two-qubit gate fidelities by applying signal predistortion
filters with net-zero gates for repeated gates.

Control, update, and sync the phase with extreme resolution across all channels in multi-cluster setups, enabling large-scale multi-qubit algorithms.

Benchmark two-qubit performance with randomized benchmarking routines.

/ OPTIMAL QUBIT READOUT

QCM-RF II & QRC: The Integrated Cluster for Single-Qubit Operations

/ MODULE
QRC
Qubit Readout van Control
/ MODULE
QRM - RF
Qubit readout module RF

Scale by multiplexing your readout up to eight simultaneous tones within an 800 MHz frequency span.

Optimize readout fidelity by shaping the readout pulse and applying acquisition weights within the integration window.

Speed up your experiments with onboard data processing that supports real-time state-discrimination-based feedback.

Quantum Error Correction

Transform error correction with the industry's fastest feedback and highest core density. We provide the real-time decoding foundation needed to build reliable, large-scale quantum processors.

120-core architecture

Achieve massively parallel real-time signal processing using 120 sequencer cores housed in a single 19” rack.

< 400ns active control

Perform mid-circuit measurements and enablelow-latency conditional feedback with all-to-allconnectivity in under 400 nanoseconds.

< 1ns precision

Ensure clock synchronization accuracy within<< 1 nanosecond across all processing units.

Real-time Error Correction

Integrate with real-time decoders for error correction and adapt with surface codes, stabilizer codes, and others.

HARDWARE

Cluster

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Hardware for superior analog performance

Gapless playback for predictable and reliablesignal output, crucial for phase-coherentoperations.
Short, parameterized pulses with industry’sfastest parameter update rate of 4 ns.
Exceptional signal integrity, optimized for highSNR, high SFDR, and low phase noise.
Unrivaled time domain performance throughshort rise times and low ringing, enabling ultra-fast high fidelity gates.
SOFTWARE

Qblox Scheduler

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Software enabling instant results

Intuitive programming with built-in visualizationtools, data analysis, and storage.
High-speed, large-scale experimentationthrough FPGA-based multi-dimensional real-time loops.
Extensive applications toolkit with plug-and-playqubit tune-up routines and the base for buildingadvanced measurements.
Tighter integration with Qblox Instruments:Assembly-level software for advanced controland custom compilers.

Trusted by the teams building the quantum future.

As we build integrated multimodal quantum data centers and connect quantum processors directly with HPC infrastructures, transparent, low-level hardware control is essential to delivering scalable, hybrid quantum–classical computing environments. Qblox enables this level of hardware control through Q1ASM, giving us at Qilimanjaro the precision and flexibility needed to advance our analog and digital QPUs."

Marta P. Estarellas
CEO

Since 2021, Qblox has been a vitalpartner in our mission to build a 100-qubitquantum computer for Swedish industry.Their robust, scalable control systemdelivers outstanding analog performance,allowing us to push quantum boundarieswithout hardware limitations. Withunparalleled channel synchronizationand fast real-time feedback, we can fullytune up our 20-qubit systems in under 30minutes."

Giovanna Sammarco Tancredi
Senior Researcher Chalmers

Since 2022, Qblox has been a trustworthy partner, providing the qubit-agnostic control electronics essential to our vision. Their Cluster’s SYNQ & LINQ protocols enabled the ultra-low latency required for our fast, parallel qubit characterization. We highly recommend Qblox for their professionalism and innovative approach to quantum computing challenges.'

Vishal Chatrath
CEO

Qblox cluster is certainly one of the most important elements in our new spin qubit lab. The easy-to-use and compact system allows us to set up a spin qubit control system within a couple of hours. We have used it for the RF reflectometry readout of our first in-house quantum dot! I look forward to getting more exciting results by using the Qblox cluster. What I also appreciate is the good communication and friendship between Qblox and the customers."

Tzu-Kan Hsiao
Professor

The Qblox control stack has transformed our lab by replacing four separate pieces of equipment with a single, integrated 'blue box'. By combining RF/MW generation with coincidence detection and timetagging, our students achieve results faster. Combined with their excellent, fast-response support, Qblox is essential for our state-of-the-art research."

Ronald Hanson
Professor

Qblox support team’s expertise and quick response to our queries exceeded my expectations, making the setup process a breeze. Their continuous support allows our PhDs and postdocs to excel in their measurements without worrying about the control electronics. I’m very impressed by Qblox’s commitment to supporting their products and their users."

picture of Halima Giovanna Ahmad
Dr. Halima Giovanna Ahmad
Assistant professor

The QTM delivers state-of-the-art performance for field-deployed quantum communication. It stands out through its immediate reconfiguration via a Python API and seamless integration with the Qblox Cluster. This allows for full orchestration of quantum memories and photon sources—all within a single, unified setup."

Gustavo Castro do Amaral
Quantum Scientist

I've been impressed by the technical background and helpful attitude of the team we have supporting us. They are always fast to respond, really helpful and give thoughtful answers. It's fantastic."

picture of Oscar Kennedy
Oscar Kennedy
Senior Quantum Engineer

Qblox support team's expertise and quick response to our queries exceeded my expectations, making the setup process a breeze. Their continuous support allows our PhDs and postdocs to excel in their measurements without worrying about the control electronics. I’m very impressed by Qblox’s commitment to supporting their products and their users."

picture of Christopher Wilson
Dr. Christopher Wilson
Proffesor

Future proof scalability

Built to accelerate research breakthroughs and large-scale systems, the Cluster adapts seamlessly as the qubit platform grows. Its integrated control and readout architecture ensures robust, high‑performance operation whether managing 5 qubits, 25 qubits, or scaling toward 1000 and beyond.

Scientific article highlights

High EJ / EC transmon qudits up toD = 12 via Qblox IF multiplexing.
Z. Wang et al.,Phys. Rev. Applied 23, 034046 (2025).
read article

Achieving 99.5% operational fidelity intunable couplers through Qblox drivencrosstalk mitigation.

S. Vallés-Sanclemente et al., arXiv:2503.13225 (2025).
read article

Optical readout of a superconducting qubitenabled by Qblox real-time I-Q signalcontrol.

T. C. van Thiel et al.,Nat. Phys., 21, 401(2025).
read article

Let’s build quantum, together!

Want to accelerate your quantum computing research and development?
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High fidelity qubit control
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