Nitrogen-Vacancies (NV) in diamond are the state-of-the-art platform for quantum internet end nodes. Our group was the first in the world to make a 3-node quantum network using NV centers in diamond [1]. However, only 3% of the light emitted is coherent and thus can be used for entanglement generation. This limits us to scaling to larger quantum networks. Tin-Vacancies (SnV) are a promising new platform, as they emit ~60% coherent light and are in-sensitive to electronic fields in first order what makes them suitable for integration in nano-devices [2]. In order to entangle SnVs, we need to tune their resonant frequency. This can be done by applying strain to the emitter [3].

This project offers the opportunity to fabricate devices that can tune SnVs centers in diamond. In addition, you have the opportunity to characterize the tunability of the SnV-centers in diamond in a state-of-the-art optical lab, contributing towards large-scale quantum networks. The focus of the project can be adjusted to your interests.

Join the project

If you are interested to join this project, please contact Julia Brevoord.

References:

[1] M. Pompili, S. L. N. Hermans, et. al., Realization of a multinode quantum network of remote solid-state qubits, Science 372, 259–264 (2021)

[2] M. Trusheim, B. Pingault Transform-limited photons from a coherent tin-vacancy spin in diamond, Phys. Rev. Lett. 124, 023602 (2020)

[3] S. Meesala et. al., Strain engineering of the silicon-vacancy center in diamond, Phys. Rev. B 97, 205444 (2018)