Péter Udvarhelyi

2 months ago | dx.doi.org | Péter Udvarhelyi |Prineha Narang

Aug 22, 2023 | nature.com | Péter Udvarhelyi |James Edgar

AbstractThe boron-vacancy spin defect () in hexagonal boron nitride (hBN) has a great potential as a quantum sensor in a two-dimensional material that can directly probe various external perturbations in atomic-scale proximity to the quantum sensing layer. Here, we apply first-principles calculations to determine the coupling of the electronic spin to strain and electric fields.

Aug 9, 2023 | link.aps.org | Pei Li |Péter Udvarhelyi |Bing Huang |Beijing Normal

Abstract Defect qubits in 4H-SiC are outstanding candidates for numerous applications in the rapidly emerging field of quantum technology. Carbon clusters can act as emission sources that may appear after thermal oxidation of 4H-SiC or during irradiation, which kicks out carbon atoms from their sites. These fluorescent carbon clusters could interfere with the already established vacancy-related qubits that generated with irradiation techniques.