From 11:45 am to 12:05 pm
Magnetic sensing with NV center ensembles – Clément Pellet-Mary
The NV center is a particular crystal defect in diamond which belongs to the large family of "artificial atoms", solid state systems where the electrons are confined in all 3 dimensions which give rise to discrete energy levels similar to that of an atom. The particularity of the NV center resides in its spin, which can be prepared and read out optically, making the NV center one of the very few solid state spin qubit workable at room temperature.
During my talk, I will briefly describe some of the recent achievements realized with NV centers in the domains of quantum information and computation, after which I will describe my work in quantum sensing with dense ensemble of NV centers, where the dipole-dipole coupling between the NVs as welle as with other spin defects in the crystal starts to be noticeable. I will explain how we can use this coupling to our advantage, to probe other spins and to measure external magnetic field.

From 12:10 pm to 12.30 pm 
Advancing the verification of quantum computing – Dominik Leichtle
What is the worth of quantum computations if we cannot verify the correctness of their results? But how to check the results of a quantum algorithm that we cannot reproduce classically? In this talk, I will give a brief overview of the topic of my thesis, introducing the concept of quantum verification and presenting some recent improvements in the field.