Room-temperature manipulation and decoherence of a single spin in diamond

2006/08/31 by R. Hanson, Ronald Hanson, Oliver Gywat +2 · 182 citations
Materials Science · Physics and Astronomy · #Composite material #Condensed matter physics #Diamond #Diamond and Carbon-based Materials Research #Force Microscopy Techniques and Applications #Materials science #Optoelectronics #Physics #Quantum #Quantum and electron transport phenomena #Quantum decoherence #Quantum mechanics #Spin (aerodynamics) #Thermodynamics #cond-mat.mes-hall #quant-ph

paper · pdf · doi:10.1103/physrevb.74.161203

published in Physical Review B 74(16) (American Physical Society)

arxiv created 2006/10/26 · openalex publication_date 2006/10/26 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We report on room-temperature coherent manipulation of the spin of a single nitrogen-vacancy center in diamond and a study of its coherence as a function of magnetic field. We use magnetic resonance to induce Rabi nutations and apply a Hahn spin echo to remove the effect of low-frequency dephasing. A sharp rise in the decoherence rate is observed at magnetic fields where the nitrogen-vacancy center spin couples resonantly to substitutional nitrogen spins via the magnetic dipolar coupling. Finally, we find evidence that away from these energy resonances spin flips of nitrogen electrons are the main source of decoherence.

Citations

• Modern Quantum Mechanics
• Coherent control of macroscopic quantum states in a single-Cooper-pair box
• Nitrogen-vacancy center in diamond: Model of the electronic structure and associated dynamics
• Optical studies of the 1.945 eV vibronic band in diamond
• NMR techniques for quantum control and computation
• Coherent Manipulation of Coupled Electron Spins in Semiconductor Quantum Dots

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