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Education and Innovation in Embedded Systems Design

USI Università della Svizzera italiana, USI Faculty of Informatics, Advanced Learning and Research Institute USI Università della Svizzera italiana USI Faculty of Informatics USI Advanced Learning and Research Institute

Informatics Seminar, by Harald Homulle and Dr. Francesco Regazzoni

Friday, May 13, 2016

Seminar given by Harald Homulle, Deltf University on: “Characterization of CMOS and FPGAs operating at cryogenic temperatures for quantum computing applications”

Speaker: Harald Homulle
  Delft University of Technology
Date: Friday, May 13, 2016
Place: USI Lugano Campus, room SI-003, Informatics building (Via G. Buffi 13)
Time: 15:30



Scalability is a major challenge for large scale quantum computers, not only to design a large array of qubits, but moreover for the read-out of those qubits. Cryogenic electronics is a possible solution to overcome the huge temperature difference between qubit (at 20 mK) and electronics (at 300 K). This can lead to improved performance (shorter wires), less head injection (from 300 K) and an overall more integrated and smaller system.

To operate electronics at cryogenic temperatures (4 K), we characterized both CMOS and FPGAs running at those temperatures. Using those results, we opt to implement parts of the qubit read-out at low temperatures, such as analog-to-digital converters.



Harald Homulle received his bachelor (2012) and master degree (2014) from Delft University of Technology, both in the field of electrical engineering. During his master, he completed his internship at EPFL Lausanne developing a multi-channel Time to Digital Converter for fluorescence lifetime imaging.


Host: Dr. Francesco Regazzoni