The coupled negatively charged nitrogen-vacancy （NV-） center system is a promising candidate for scalable quantum information techniques. In this work, ionized nitrogen molecules are implanted into bulk diamond to g...The coupled negatively charged nitrogen-vacancy （NV-） center system is a promising candidate for scalable quantum information techniques. In this work, ionized nitrogen molecules are implanted into bulk diamond to generate coupled NV- center pairs. The two-photon autocorrelation measurement and optically detected magnetic resonance measurement are carried out to confirm the production of the NV- center pair. Also, both 1.3μs decoherence time and 4.g kHz magnetic coupling strength of the NV- center pair are measured by controlling and detecting the spin states. Along with nanoscale manipulation and detection methods, such coupled NV- centers through short distance dipole-dipole interaction would show high potential in scalable quantum information processes.展开更多
Nitrogen-vacancy defect color centers are created in a high purity single crystal diamond by nitrogen-ion implantation.Both optical spectrum and optically detected magnetic resonance are measured for these artificial ...Nitrogen-vacancy defect color centers are created in a high purity single crystal diamond by nitrogen-ion implantation.Both optical spectrum and optically detected magnetic resonance are measured for these artificial quantum emitters.Moreover,with a suitable mask,a lattice composed of nitrogen-vacancy centers is fabricated.Rabi oscillation driven by micro-waves is carried out to show the quality of the ion implantation and potential in quantum manipulation.Along with compatible standard lithography,such an implantation technique shows high potential in future to make structures with nitrogen-vacancy centers for diamond photonics and integrated photonic quantum chip.展开更多
基金Supported by the Strategic Priority Research Program(B)of the Chinese Academy of Sciences under Grant No XDB01030200the National Natural Science Foundation of China under Grant Nos 11374290,91536219,61522508 and 11504363+2 种基金the Fundamental Research Funds for the Central Universitiesthe China Postdoctoral Science Foundation under Grant No 2015M571935the Foundation for the Author of National Excellent Doctoral Dissertation of China
文摘The coupled negatively charged nitrogen-vacancy （NV-） center system is a promising candidate for scalable quantum information techniques. In this work, ionized nitrogen molecules are implanted into bulk diamond to generate coupled NV- center pairs. The two-photon autocorrelation measurement and optically detected magnetic resonance measurement are carried out to confirm the production of the NV- center pair. Also, both 1.3μs decoherence time and 4.g kHz magnetic coupling strength of the NV- center pair are measured by controlling and detecting the spin states. Along with nanoscale manipulation and detection methods, such coupled NV- centers through short distance dipole-dipole interaction would show high potential in scalable quantum information processes.
基金Supported by the National Basic Research Program of China under Grant No 2011CB921200the National Natural Science Foundation of China under Grant No 11004184+1 种基金the Knowledge Innovation Project of the Chinese Academy of Sciences(CAS)the Fundamental Research Funds for the Central Universities.
文摘Nitrogen-vacancy defect color centers are created in a high purity single crystal diamond by nitrogen-ion implantation.Both optical spectrum and optically detected magnetic resonance are measured for these artificial quantum emitters.Moreover,with a suitable mask,a lattice composed of nitrogen-vacancy centers is fabricated.Rabi oscillation driven by micro-waves is carried out to show the quality of the ion implantation and potential in quantum manipulation.Along with compatible standard lithography,such an implantation technique shows high potential in future to make structures with nitrogen-vacancy centers for diamond photonics and integrated photonic quantum chip.
