Identification of individualC13isotopes of nitrogen-vacancy center in diamond by combining the polarization studies of nuclear spins and first-principles calculations

2009 ◽  
Vol 80 (24) ◽  
Author(s):  
Adam Gali
Nanophotonics ◽  
2019 ◽  
Vol 8 (11) ◽  
pp. 1993-2002 ◽  
Author(s):  
Priyadharshini Balasubramanian ◽  
Mathias H. Metsch ◽  
Prithvi Reddy ◽  
Lachlan J. Rogers ◽  
Neil B. Manson ◽  
...  

AbstractThe ST1 center is a point defect in diamond with bright fluorescence and a mechanism for optical spin initialization and readout. The center has impressive potential for applications in diamond quantum computing as a quantum bus to a register of nuclear spins. This is because it has an exceptionally high readout contrast, and unlike the well-known nitrogen-vacancy center, it does not have a ground state electronic spin that decoheres the nuclear spins. However, its chemical structure is unknown, and there are large gaps in our understanding of its properties. We present the discovery of ST1 centers in natural diamond. Our experiments identify interesting power dependence of the center’s optical dynamics and reveal new electronic structure. We also present a theory of its electron-phonon interactions, which we combine with previous experiments, to shortlist likely candidates for its chemical structure.


Nanophotonics ◽  
2019 ◽  
Vol 8 (11) ◽  
pp. 1907-1943 ◽  
Author(s):  
Ádám Gali

AbstractThe nitrogen-vacancy (NV) center in diamond is a solid-state defect qubit with favorable coherence time up to room temperature, which could be harnessed in several quantum-enhanced sensor and quantum communication applications, and has a potential in quantum simulation and computing. The quantum control largely depends on the intricate details about the electronic structure and states of the NV center, the radiative and nonradiative rates between these states, and the coupling of these states to external spins, electric, magnetic, and strain fields, and temperature. This review shows how first-principles calculations contributed to understanding the properties of the NV center and briefly discusses the issues to be solved toward the full ab initio description of solid-state defect qubits.


2021 ◽  
Vol 118 (26) ◽  
pp. 264002
Author(s):  
Moeta Tsukamoto ◽  
Kensuke Ogawa ◽  
Hayato Ozawa ◽  
Takayuki Iwasaki ◽  
Mutsuko Hatano ◽  
...  

2021 ◽  
pp. 127073
Author(s):  
Faisal Nadeem ◽  
Faizan Raza ◽  
Kangkang Li ◽  
Huanrong Fan ◽  
Irfan Ahmed ◽  
...  

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