PhD Position F/M Inverse magnetisation problem in the paleomagnetic context

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Type de contrat : CDD

Niveau de diplôme exigé : Bac + 5 ou équivalent

Fonction : Doctorant

A propos du centre ou de la direction fonctionnelle

The Inria center at Université Côte d'Azur includes 42 research teams and 9 support services. The center’s staff (about 500 people) is made up of scientists of different nationalities, engineers, technicians and administrative staff. The teams are mainly located on the university campuses of Sophia Antipolis and Nice as well as Montpellier, in close collaboration with research and higher education laboratories and establishments (Université Côte d'Azur, CNRS, INRAE, INSERM ...), but also with the regional economic players.

With a presence in the fields of computational neuroscience and biology, data science and modeling, software engineering and certification, as well as collaborative robotics, the Inria Centre at Université Côte d'Azur  is a major player in terms of scientific excellence through its results and collaborations at both European and international levels.

Mission confiée

Inverse magnetisation problem consists in inferring information about a static magnetic source from partial knowledge of the produced field.

The PhD thesis work will be concerned with several mathematical challenges arising from such a problem in the paleomagnetic context where the ultimate goal is to get insight into evolution of magnetic fields of Earth or other celestial bodies.

Some georocks contain valuable remanent magnetisation that can be extracted by analysis of very weak magnetic fields measured with scanning microscopy devices, e.g., using SQUID (Superconducting Quantum Interference Device) or QDM (Quantum Diamond Microscope), on a planar patch located at some distance from a sample.

Motivated by particular setups at EAPS (Earth, Atmospheric & Planetary Sciences) Department, MIT (Massachusetts Institute of Technology, USA), Harvard Paleomagnetics Lab (USA) and CEREGE (Centre de Recherche et d’Enseignement des Géosciences de l’Environnement, France), the aim of the thesis work will be advancing on the aspects related to the limitation of the available measured data, high noise content of the measurements and inapplicability of the current methodology to deal with more general sources and particularities of the experimental setting.
In particular, dealing with volumetric sources, devising appropriate noise models and studying the advantages of additionally measured data will be among the topics to consider.

 

Principales activités

The PhD thesis will involve theoretical design, numerical implementation and analysis of the methods, testing on synthetic and experimental data and comparison with alternative approaches.

 

Compétences

A candidate is required to have a solid background in applied/computational mathematics with strong interest in physical applications. Experience in numerical computations will be appreciated.

Avantages

  • Subsidized meals
  • Partial reimbursement of public transport costs
  • Leave: 7 weeks of annual leave + 10 extra days off due to RTT (statutory reduction in working hours) + possibility of exceptional leave (sick children, moving home, etc.)
  • Possibility of teleworking and flexible organization of working hours
  • Professional equipment available (videoconferencing, loan of computer equipment, etc.)
  • Social, cultural and sports events and activities
  • Access to vocational training
  • Contribution to mutual insurance (subject to conditions)

Rémunération

Gross Salary per month: 2100€ brut per month (year 1 & 2) and 2190€ brut per month (year 3)