Nagy, Roland Widmann, Matthias Niethammer, Matthias Dasari, Durga B. R. Gerhardt, Ilja Soykal, Oney O. Radulaski, Marina Ohshima, Takeshi Vuckovic, Jelena Nguyen Tien Son Ivanov, Ivan G. Economou, Sophia E. Bonato, Cristian Lee, Sang-Yun Wrachtrup, Joerg 2024-01-19T23:03:47Z 2024-01-19T23:03:47Z 2021-09-03 2018-03-23 2331-7019 https://pubs.kist.re.kr/handle/201004/121587 Although various defect centers have displayed promise as either quantum sensors, single photon emitters, or light-matter interfaces, the search for an ideal defect with multifunctional ability remains open. In this spirit, we study the dichroic silicon vacancies in silicon carbide that feature two well-distinguishable zero-phonon lines and analyze the quantum properties in their optical emission and spin control. We demonstrate that this center combines 40% optical emission into the zero-phonon lines showing the contrasting difference in optical properties with varying temperature and polarization, and a 100% increase in the fluorescence intensity upon the spin resonance, and long spin coherence time of their spin-3/2 ground states up to 0.6 ms. These results single out this defect center as a promising system for spin-based quantum technologies. English AMER PHYSICAL SOC ROOM-TEMPERATURE COHERENT CONTROL SPIN 4H DIAMOND PHOTON DEFECT QUBIT Quantum Properties of Dichroic Silicon Vacancies in Silicon Carbide Article 10.1103/PhysRevApplied.9.034022 1 PHYSICAL REVIEW APPLIED, v.9, no.3 PHYSICAL REVIEW APPLIED 9 3 scie scopus 000428168800003 2-s2.0-85044466257 Physics, Applied Physics Article ROOM-TEMPERATURE COHERENT CONTROL SPIN 4H DIAMOND PHOTON DEFECT QUBIT