Magnetic resonance detection of individual proton spins using quantum reporters.
Phys Rev Lett
; 113(19): 197601, 2014 Nov 07.
Article
em En
| MEDLINE
| ID: mdl-25415924
ABSTRACT
We demonstrate a method of magnetic resonance imaging with single nuclear-spin sensitivity under ambient conditions. Our method employs isolated electronic-spin quantum bits (qubits) as magnetic resonance "reporters" on the surface of high purity diamond. These spin qubits are localized with nanometer-scale uncertainty, and their quantum state is coherently manipulated and measured optically via a proximal nitrogen-vacancy color center located a few nanometers below the diamond surface. This system is then used for sensing, coherent coupling, and imaging of individual proton spins on the diamond surface with angstrom resolution. Our approach may enable direct structural imaging of complex molecules that cannot be accessed from bulk studies. It realizes a new platform for probing novel materials, monitoring chemical reactions, and manipulation of complex systems on surfaces at a quantum level.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Prótons
/
Imageamento por Ressonância Magnética
/
Pontos Quânticos
Tipo de estudo:
Diagnostic_studies
Idioma:
En
Revista:
Phys Rev Lett
Ano de publicação:
2014
Tipo de documento:
Article
País de afiliação:
Estados Unidos