PhD Thesis in Quantum Physics: Theoretical Modeling of a Nanomechanical Qubit in Suspended Graphene (M/F)
- FTC PhD student / Offer for thesis
- 36 mounth
- Doctorate
This offer is available in English version
This offer is open to people with a document recognizing their status as a disabled worker.
Offer at a glance
The Unit
Laboratoire ondes et matière d'Aquitaine
Contract Type
FTC PhD student / Offer for thesis
Working hHours
Full Time
Workplace
TALENCE ()
Contract Duration
36 mounth
Date of Hire
15/04/2026
Remuneration
2300 € gross monthly
Apply Application Deadline : 07 March 2026 00:00
Job Description
Thesis Subject
The coherence time is a key metric for evaluating the performance of a quantum bit. We have recently proposed a new type of qubit that stores information in the mechanical displacement of a carbon nanotube and leverages its coupling to an electronic two-level system to induce sufficiently strong anharmonicity, enabling its manipulation and readout.
In this PhD project, we aim to study the coupling between the mechanical modes of suspended bilayer graphene and the quantum dots that can be formed within it. Bilayer graphene offers a remarkable advantage over monolayer graphene: it allows for the precise design of quantum dots while retaining the exceptional mechanical properties of graphene. The electronic structure of bilayer graphene has been intensively studied in recent years, revealing a rich internal physics with valley and spin degrees of freedom. It has been demonstrated that qubits with extremely long lifetimes, reaching up to 30 seconds, can be observed in this system. However, their manipulation remains a major challenge.
This thesis will theoretically explore how the deformation of a mechanical oscillator can be exploited to create new mechanical qubits. Collaborations with experimental groups that will study a physical realization of the qubit will be part of the project.
Your Work Environment
This project is part of the European program HORIZON-EIC-2025-PATHFINDEROPEN MECH-QUBIT (MECHanical QUBIT With Enhanced Coherence), conducted in close collaboration with the experimental teams of Adrian Bachtold (ICFO, Spain) and Christoph Stampfer (RWTH Aachen, Germany). The successful candidate will join the Laboratoire Ondes et Matière d'Aquitaine (LOMA) in Bordeaux, within the condensed matter theory team. This dynamic environment includes several researchers working on related topics in quantum technologies, providing a stimulating scientific framework ideal for exploring synergies between theory and experiment in this innovative field.
Compensation and benefits
Compensation
2300 € gross monthly
Annual leave and RTT
44 jours
Remote Working practice and compensation
Pratique et indemnisation du TT
Transport
Prise en charge à 75% du coût et forfait mobilité durable jusqu’à 300€
About the offer
| Offer reference | UMR5798-FABPIS-015 |
|---|---|
| CN Section(s) / Research Area | Condensed matter: electronic properties and structures |
About the CNRS
The CNRS is a major player in fundamental research on a global scale. The CNRS is the only French organization active in all scientific fields. Its unique position as a multi-specialist allows it to bring together different disciplines to address the most important challenges of the contemporary world, in connection with the actors of change.
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