Microwaves in Quantum Computing webinar series – Part 2
About
The growing field of quantum computing relies on a broad range of microwave technologies and has spurred development of microwave devices and methods in new operating regimes. But despite the significant progress made in the last decade in the science, engineering and characterisation of quantum computation systems, several challenges remain to be overcome before quantum computation can become practically usable.
The challenges of realising practical large-scale quantum computing systems present microwave engineers and researchers with opportunities in cryogenic microwave design, fabrication, measurement, and characterisation of cryogenic semiconductor and superconductor components, systems, and networks.
This two-part webinar series will bring together international experts from quantum and microwave industry and academia. Recent standardisation activities will also be covered which will be critical to accelerate commercialisation of quantum computing technologies.
Relevant engineering disciplines and topics include electrical engineering, microwave engineering, microwave measurements, quantum engineering, standardisation and cryogenics.
1
Continuing Professional Development
This event can contribute towards your Continuing Professional Development (CPD) hours as part of the IET's CPD monitoring scheme.
30 Oct 2025
2:00pm - 3:00pm
Organiser
- RF and Microwave TN
Speakers
Dr Laurent Petit
Microwave Senior Expert - Radiall
Dr. Laurent Petit is a Technical Expert at Radiall, leading advanced R&D initiatives at the intersection of RF engineering, cryogenics, and quantum technologies.
He coordinates collaborative projects on high-frequency interconnects, cryogenic thermal management, and integrated sensor solutions for quantum computing hardware.
Actively involved in academic–industrial partnerships, including PhD programs and national quantum initiatives, he also contributes to international standardization efforts related to quantum and RF technologies.
Suren Singh
Technical Lead Emerging Technologies - Keysight Technologies
Suren Singh received his BSEE from the University of Durban-Westville, South Africa, in 1985. He later earned a Graduate Diploma and an MSEE from the University of the Witwatersrand, Johannesburg, in 1992 and 1995, respectively.
Since joining Hewlett-Packard in 1986, Suren has held various roles through the transitions to Agilent Technologies and now Keysight Technologies. His extensive experience spans application engineering, product design, manufacturing, and test process development for microwave hybrid microcircuits.
Suren has served as an application specialist and system architect, with a focus on terahertz measurement solutions. He currently leads metrology product development for performance network analyzers, including calibration and verification techniques applicable at both ambient and cryogenic temperatures.
In his most recent role, Suren is the technical lead for emerging technologies in Quantum and 6G, with a particular emphasis on aerospace applications. He is actively involved in research and development of sub-THz device testing solutions for 6G, leveraging Keysight’s advanced hardware platforms. He also collaborates closely with industry leaders in the quantum domain to bring cutting-edge characterization solutions to market.
Programme
Cryogenic RF and Microwave Interconnects for the Quantum Era: Advancing through R&D and Standardization
As quantum processors evolve toward larger and more complex architectures, the scalability and fidelity of interconnect solutions become increasingly critical. This talk addresses the key challenges and recent breakthroughs in developing cryogenic microwave interconnects tailored for next-generation quantum computing platforms.
We highlight how multidisciplinary engineering—combining RF design, thermal modeling, cryogenic metrology, and system integration—is enabling robust signal distribution architectures that operate reliably down to millikelvin temperatures.
Key topics will include the design of low-noise attenuators, reconfigurable cryo-switches, and infrared filters, as well as the deployment of modular coaxial sideloaders capable of managing hundreds of RF channels within a single dilution refrigerator. Ongoing efforts to establish unified test protocols and component specifications as part of international standardization initiatives will also be discussed.
By bridging prototype development with industrial readiness, these advances lay a solid foundation for scalable, reproducible quantum hardware—helping to shape the infrastructure backbone of the quantum era.
Speaker: Laurent Petit, Microwave Senior Expert, Radiall
Application of Microwave Measurement Techniques in the Design and Control of Quantum Computing Systems
As quantum computing technologies advance, the adaptation of classical microwave measurement techniques to quantum-specific challenges has become increasingly critical. This presentation will examine key methodologies that support the design, simulation, and control of superconducting qubit systems.
We will explore advanced tools for qubit layout and design, including the integration of parametric amplifiers and the incorporation of novel simulation parameters that reflect the unique constraints of quantum environments. A significant portion of the talk will focus on a scalable control platform architecture that achieves ultra-low phase noise and high-fidelity coherent control, with the capability to scale to systems managing up to 1,000 qubits.
Additionally, we will discuss the role of next-generation cryogenic hardware in enabling these systems, highlighting recent developments in component design, integration, and testing under cryogenic conditions. This session aims to provide practical insights for engineers and physicists working at the intersection of microwave engineering and quantum information science.
Speaker: Suren Singh, Technical Lead Emerging Technologies, Keysight Technologies