2019
DOI: 10.1515/nanoph-2019-0154
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Ab initio theory of the nitrogen-vacancy center in diamond

Abstract: Nitrogen-vacancy 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 nitrogen-vacancy center, radiative and non-radiative rates between these states and the coupling of these states to external spins… Show more

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Cited by 198 publications
(159 citation statements)
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References 267 publications
(498 reference statements)
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“…This finding justifies the application of Huang-Rhys theory for calculating the ZPL energy and the phonon sideband of the photo luminesence (PL) spectrum as explained in Ref. 26. The calculated radiative lifetime is about 20 µs in the distorted structure that we obtained in single particle approximation.…”
Section: Resultssupporting
confidence: 86%
See 1 more Smart Citation
“…This finding justifies the application of Huang-Rhys theory for calculating the ZPL energy and the phonon sideband of the photo luminesence (PL) spectrum as explained in Ref. 26. The calculated radiative lifetime is about 20 µs in the distorted structure that we obtained in single particle approximation.…”
Section: Resultssupporting
confidence: 86%
“…On the other hand, it has been recently shown from first principles for an exemplary point defect qubit, nitrogen-vacancy center in diamond (see Refs. [24][25][26] that phonon mixing of highly correlated dark states is a key in the optical spin polarization process. In addition, the spin-dependent properties of defect qubits, such as zero-field splitting (ZFS) and hyperfine constants (HF), have not yet been reported in hBN which is a key tool in identification of the point defect qubits and plays a crucial role in the quantum optical control of the qubit.…”
Section: Introductionmentioning
confidence: 99%
“…Such a TLS system coupled to a single bosonic mode is a prototypical model that can be considered for the description of various solid state systems. For the TLS, one might think of an exciton in a single semiconductor quantum dot [ 16 ] or excitations of defects in insulators, like diamond [ 17 ] or hexagonal boron nitride [ 18 ], while the phonon could be an optical mode [ 19 ], a local mode [ 20 ], a van Hove singularity [ 21 ], or the mechanical excitation of a microresonator [ 22 ].…”
Section: Theorymentioning
confidence: 99%
“…34 This population transfer is coupled to a degenerated vibrational mode, which is a consequence of the Jahn-Teller effect. 35,36 In addition to the decrease of polarization, another consequence of this population transfer is a strong broadening of the NV − ZPL following a T 5 -dependence. In comparison to that, we observe a weaker temperature dependence.…”
Section: Dependence Of the Linear Polarization On The Temperaturementioning
confidence: 99%