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Suppression of spin-bath dynamics for improved coherence of multi-spin-qubit systems
(Springer Nature, 2012)
Multi-qubit systems are crucial for the advancement and application of quantum science. Such systems require maintaining long coherence times while increasing the number of qubits available for coherent manipulation. For ...
Enhanced solid-state multispin metrology using dynamical decoupling
(American Physical Society (APS), 2012)
We use multipulse dynamical decoupling to increase the coherence lifetime (T2) of large numbers of nitrogen-vacancy (NV) electronic spins in room temperature diamond, thus enabling scalable applications of multispin quantum ...
Efficient photon detection from color centers in a diamond optical waveguide
(American Physical Society (APS), 2012)
A common limitation of experiments using color centers in diamond is the poor photon collection efficiency of microscope objectives due to refraction at the diamond interface. We present a simple and effective technique ...
Coherent, Mechanical Control of a Single Electronic Spin
(American Chemical Society (ACS), 2012)
We demonstrate coherent quantum control of a single spin driven by the motion of a mechanical resonator. The motion of a mechanical resonator is magnetically coupled to the electronic spin of a single nitrogen-vacancy ...
Enhanced metrology using preferential orientation of nitrogen-vacancy centers in diamond
(American Physical Society (APS), 2012)
We demonstrate preferential orientation of nitrogen-vacancy (NV) color centers along two of four possible crystallographic axes in diamonds grown by chemical vapor deposition on the {100} face. We identify the relevant ...
Nanoscale magnetic imaging of a single electron spin under ambient conditions
(Nature Publishing Group, 2013)
The detection of ensembles of spins under ambient conditions has revolutionized the biological, chemical and physical sciences through magnetic resonance imaging1 and nuclear magnetic resonance2, 3. Pushing sensing ...
Far-Field Optical Imaging and Manipulation of Individual Spins with Nanoscale Resolution
(Nature Publishing Group, 2010)
A fundamental limit to existing optical techniques for measurementand manipulation of spin degrees of freedom is set by diffraction, which does not allow spins separated by less than about a quarter of a micrometre to be ...
Magnetic Field Imaging with Nitrogen-Vacancy Ensembles
(Institute of Physics, 2011)
We demonstrate a method of imaging spatially varying magnetic fields using a thin layer of nitrogen-vacancy (NV) centers at the surface of a diamond chip. Fluorescence emitted by the two-dimensional NV ensemble is detected ...
Improved Quantum Sensing with a Single Solid-State Spin via Spin-to-Charge Conversion
(American Physical Society (APS), 2019-06-03)
Efficient optical read-out of single, solid-state electronic spins at room temperature is a key challenge for nanoscale quantum sensing. Nitrogen-vacancy color centers in diamond have a fast optical spin-state read-out ...
Coherence of Nitrogen-Vacancy Electronic Spin Ensembles in Diamond
(American Physical Society, 2010)
We present an experimental and theoretical study of electronic spin decoherence in ensembles of nitrogen-vacancy (NV) color centers in bulk high-purity diamond at room temperature. Under appropriate conditions, we find ...