Control stack tailored
for spin qubits

Trusted by leading quantum industry and labs worldwide

Solution for high-fidelity quantum
operations

The Qblox Cluster Series offers a comprehensive, scalable solution for precise quantum control and nanosecond-level pulse shaping. By integrating ultra-clean signal generation with real-time data processing, it allows researchers to enhance gate fidelities and simplify complex qubit experiments.

RF Cluster
DC CLUSTER
SELECT QUBIT OPERATION:
/SINGLE QUBIT GATES

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

/ MODULE
QCM - RF
Qubit Control Module - RF
/ MODULE
QCM
Qubit Control Module

Manipulate quantum states precisely through high SNR and anexceptionally 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.

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

Run multi-dimensional qubit calibration routines, such as Rabi, Ramsey, and T1 experiments, in a parameterized fashion.

/ TWO QUBIT GATES

QCM & QCM-RF: The Cluster for Two-Qubit Operations

/ MODULE
QCM - RF
Qubit Control Module - RF
/ MODULE
QCM
Qubit Control Module

Manipulate charge states of quantum dots over a widerparameter space of the charge stability diagram, enabled by the5 Vpp scan range.

Implement the spin shuttling operation easily and intuitively tofacilitate the two-qubit gate in a scalable QPU.

Perform 2-qubit gates by exploiting exchange interactions between quantum dots using tunneling gate pulses at 1 ns precision.

Operate qubit drive and exchange interactions up to 18.5 GHz toobtain spin evolution data.

/ OPTIMAL QUBIT READOUT

QCM & QCM-RF: The Cluster for Two-Qubit Operations

/ MODULE
QRC
Qubit Readout and Control Module
/ MODULE
QRM
Qubit Readout Module

Perform spin qubit measurement experiments, utilizing either current-based DC sensing or reflectometry-based RF sensing.

Run RF-Reflectometry up to 8 simultaneous readout tones across 800 MHz.

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.

Ground-loop free long term stability

Measure the color center spin state via thehigh-resolution time tagger, enabling both simplephoton counting and advanced time-resolved photolumine scence.

Maintain interference-free electrostatic definition of quantum dots with ultra-stable and low noise outputs.

Measure the color center spin state via thehigh-resolution time tagger, enabling both simplephoton counting and advanced time-resolved photolumine scence.

Built-in scalable feedback infrastructure with all-to-all connectivity under 400 ns for conditional playback and branching.

Automatic synchronization of all channels less than << 1 ns with ps-level jitter.

HARDWARE

Cluster & DC 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

High-speed, large-scale experimentation through FPGA based multi-dimensional real- time loops.
Extensive applications toolkit with plug-and-play qubit tune-up routines and the base for building advanced measurements.
Tighter integration with Qblox Instruments: Assembly-level software for advanced control and custom compilers.
Unrivaled time domain performance throughshort rise times and low ringing, enabling ultra-fast high fidelity gates.

Trusted by the teams building the quantum future.

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

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

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

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

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

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 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 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

Scientific article highlights

Electron spin displacement with 99.5%fidelity over 10 µm in <200 ns enabledby Qblox’s dynamic NCO phase andfrequency control, baseband pulses, andRF reflectometry.
M. De Smet et al.,Nat. Nanotechnol. 20, 866–872(2025).
read article

Gatemon Qubit on a Germanium Quantum-Well Heterostructure

Gustavo C. Amaral et al.,arXiv:2508.11023(2025).
read article

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