Detection and manipulation of single spin of nitrogen vacancy center in diamond toward application of weak measurement

2011 ◽  
Vol 43 (3) ◽  
pp. 761-765 ◽  
Author(s):  
Sota Kagami ◽  
Yutaka Shikano ◽  
Koichiro Asahi
Keyword(s):  
Weak Measurement ◽  
Nitrogen Vacancy ◽  
Single Spin ◽  
Nitrogen Vacancy Center ◽  
Vacancy Center

scholarly journals Observation of parity-time symmetry breaking in a single-spin system

Science ◽  
2019 ◽  
Vol 364 (6443) ◽  
pp. 878-880 ◽  
Author(s):  
Yang Wu ◽  
Wenquan Liu ◽  
Jianpei Geng ◽  
Xingrui Song ◽  
Xiangyu Ye ◽  
...  
Keyword(s):  
Quantum Systems ◽  
Spin Systems ◽  
Nitrogen Vacancy ◽  
Single Quantum ◽  
Single Spin ◽  
Classical Systems ◽  
Time Symmetry ◽  
Nitrogen Vacancy Center ◽  
Quantum Sensing ◽  
Vacancy Center

Steering the evolution of single spin systems is crucial for quantum computing and quantum sensing. The dynamics of quantum systems has been theoretically investigated with parity-time–symmetric Hamiltonians exhibiting exotic properties. Although parity-time symmetry has been explored in classical systems, its observation in a single quantum system remains elusive. We developed a method to dilate a general parity-time–symmetric Hamiltonian into a Hermitian one. The quantum state evolutions ranging from regions of unbroken to broken PT symmetry have been observed with a single nitrogen-vacancy center in diamond. Owing to the universality of the dilation method, our result provides a route for further exploiting and understanding the exotic properties of parity-time symmetric Hamiltonian in quantum systems.

Vector magnetometry using perfectly aligned nitrogen-vacancy center ensemble in diamond

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

Hybrid communication assisted by coherent oscillator using resonant excitation of Nitrogen-vacancy center in diamond

2021 ◽  
pp. 127073
Author(s):  
Faisal Nadeem ◽  
Faizan Raza ◽  
Kangkang Li ◽  
Huanrong Fan ◽  
Irfan Ahmed ◽  
...  
Keyword(s):  
Resonant Excitation ◽  
Nitrogen Vacancy ◽  
Nitrogen Vacancy Center ◽  
Vacancy Center

A flexible nitrogen-vacancy center probe for scanning magnetometry

2021 ◽  
Vol 92 (5) ◽  
pp. 055001
Author(s):  
Maosen Guo ◽  
Mengqi Wang ◽  
Pengfei Wang ◽  
Diguang Wu ◽  
Xiangyu Ye ◽  
...  
Keyword(s):  
Nitrogen Vacancy ◽  
Nitrogen Vacancy Center ◽  
Vacancy Center
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