Nanowerk October 8, 2024
Group-IV color centers in diamond are promising candidates for quantum networks. However, the magnetic dipole transitions required for microwave spin control are suppressed, and strain is necessary to enable these transitions. Researchers in Germany found substantial improvement when they utilized a superconducting coplanar waveguide to measure SnV centers subjected to strain. They demonstrated coherent spin manipulation and obtained a Hahn echo coherence time of up to 2=430 μs. With dynamical decoupling they could prolong coherence to about sixfold improvement compared to earlier works. They observed a nearby coupling spin, which might serve as a quantum memory, thus substantiating the potential of SnV centers in diamond and demonstrated the benefit of superconducting microwave structures… read more. Open Access TECHNICAL ARTICLE
Schematic of the experimental setup… Credit: Phys. Rev. X 14, 031036, 27 August 2024