//APPLICATIONS

Superconducting qubits

As superconducting quantum processors scale in size and complexity, their cryogenic I/O must scale with them. High channel density, low thermal load, reliable signal delivery, and fewer potential points of failure are essential for moving from small experimental systems toward large-scale quantum processors. Cri/oFlex® provides compact, multi-channel cryogenic wiring designed to address these challenges while maintaining signal integrity from room temperature to the coldest stages of the cryostat.

COUPLERS AND FLUX BIAS

DRIVE, FEED, AND PUMP

READOUT

//SPECIFICATIONS

Application highlights

Small form factor flex cables and compact interconnects make efficient use of limited cryostat space.

Attenuators, low-pass filters, and infrared filters integrated directly into the flex, reducing the number of separate components, connections, and potential failure points.

Superconducting NbTi flex wiring minimizes heat conduction between temperature stages, particularly benefiting applications with large numbers of DC and low-frequency control lines.

Multi-channel flexes, standardized interfacing, and pre-assembled I/O chains reduce cabling complexity as channel counts increase.

// I/O OVERVIEW

I/O overview

With the Cri/oFlex® platform, Delft Circuits has developed a range of standard line configurations for superconducting qubit control and readout, including Flux Bias, Microwave Drive, Signal, Readout, and Pump lines. These configurations have been validated for superconducting qubit applications and address the most common control and readout requirements. Combined into pre-assembled and tested I/O systems, they provide a scalable architecture from room temperature to the quantum processor.

I/O overview Superconducting qubits: Schematic of lines required for superconducting qubit set-up
Legend explaining the symbols used in the cryogenic cable overview diagrams.

// LINE CONFIGURATIONS

Optimized configurations,
optimal transmission

Flux Bias line

For controlling superconducting qubits and tunable couplers

Microwave Drive line

For Feed, Drive, and Pump roles within superconducting architectures

Readout line

Transfer signals from the quantum device back to the control electronics

// APPLICATIONS

Quantum and Cryogenic
compute

Semi-conductor Spin qubits

High-density, bus-like I/O systems for spin qubit applications

Photonics

Small form factor I/O with minimal transmission distortion tailored for photonics applications

Astrophysics Detectors

Lightweight and flexible cryogenic cabling systems with low thermal load to enable reliable results even in cramped spaces

Ready to scale?

Our team of quantum I/O engineers will design the right
solution for your system. Reach out to get started.