General information
Organisation
The French Alternative Energies and Atomic Energy Commission (CEA) is a key player in research, development and innovation in four main areas :
• defence and security,
• nuclear energy (fission and fusion),
• technological research for industry,
• fundamental research in the physical sciences and life sciences.
Drawing on its widely acknowledged expertise, and thanks to its 16000 technicians, engineers, researchers and staff, the CEA actively participates in collaborative projects with a large number of academic and industrial partners.
The CEA is established in ten centers spread throughout France
Reference
SL-DRT-24-0666
Direction
DRT
Thesis topic details
Category
Technological challenges
Thesis topics
Partitioning of spin Qubits control electronics architecture: co-design of cryoCMOS and room-temperature hardware
Contract
Thèse
Job description
Quantum algorithms capable of demonstrating a quantum advantage will require the use of quantum processors (QPU) with several thousands of qubits. The design of such a quantum computer is a multidisciplinary challenge at the heart of quantum engineering. Control electronics face particular constraints related to the cryogenic temperature at which qubits operate. Leveraging its expertise in silicon-based technologies, the CEA aims to integrate thousands of semiconductor qubits within a single QPU.
The primary objective of this thesis is to propose an innovative digital and analog qubit control architecture that scales to thousands of spin qubits, by distributing electronics between different stages of the cryostat and the exterior at ambient temperature. The second objective is to create prototypes of this control chain to demonstrate the feasibility and performance of such an architecture.
The work will build upon an existing architecture at ambient temperature and microelectronic blocks developed at cryogenic temperatures within the CEA. New blocks and corresponding circuits will be developed to reach the targetted scale-out quantum architecture. The circuits will be fabricated, tested and measured, and will be published in scientific publications.
University / doctoral school
Electronique, Electrotechnique, Automatique, Traitement du Signal (EEATS)
Université Grenoble Alpes
Thesis topic location
Site
Grenoble
Requester
Position start date
01/09/2024
Person to be contacted by the applicant
GUTHMULLER Eric eric.guthmuller@cea.fr
CEA
DRT/DSCIN/DSCIN/LSTA
CEA-List
MINATEC Campus, 17 rue des Martyrs
38054 GRENOBLE Cedex 9
+ 33 (0)4 38 78 58 89
Tutor / Responsible thesis director
BADETS Franck franck.badets@cea.fr
CEA
DRT/DCOS//LGECA
17 rue des Martyrs
38054 Grenoble
0438782672
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