Dynamic Polarization of Single Nuclear Spins by Optical Pumping of Nitrogen-Vacancy Color Centers in Diamond at Room Temperature

被引：344

作者：

Jacques, V. ^{[1
]}

Neumann, P. ^{[1
]}

Beck, J. ^{[1
]}

Markham, M. ^{[2
]}

Twitchen, D. ^{[2
]}

Meijer, J. ^{[3
]}

Kaiser, F. ^{[1
]}

Balasubramanian, G. ^{[1
]}

Jelezko, F. ^{[1
]}

Wrachtrup, J. ^{[1
]}

机构：

[1] Univ Stuttgart, Inst Phys 3, D-70550 Stuttgart, Germany

[2] Element Six Ltd, Ascot SL5 8BP, Berks, England

[3] Ruhr Univ Bochum, Cent Lab Ion Beam & Radionuclides, Bochum, Germany

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 05期

关键词：

RESONANCE; QUBITS;

D O I：

10.1103/PhysRevLett.102.057403

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report a versatile method to polarize single nuclear spins in diamond, based on optical pumping of a single nitrogen-vacancy (NV) defect and mediated by a level anticrossing in its excited state. A nuclear-spin polarization higher than 98% is achieved at room temperature for the N-15 nuclear spin associated with the NV center, corresponding to mu K effective nuclear-spin temperature. We then show simultaneous initialization of two nuclear spins in the vicinity of a NV defect. Such robust control of nuclear-spin states is a key ingredient for further scaling up of nuclear-spin based quantum registers in diamond.

引用

页数：4

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