Zobrazeno 1 - 10
of 195
pro vyhledávání: '"Boss, J M"'
Nuclear magnetic resonance (NMR) spectroscopy is a powerful technique for analyzing the structure and function of molecules, and for performing three-dimensional imaging of the spin density. At the heart of NMR spectrometers is the detection of elect
Externí odkaz:
http://arxiv.org/abs/1806.08243
Three-dimensional localization spectroscopy of individual nuclear spins with sub-Angstrom resolution
Publikováno v:
Nature Communications 9, 4678 (2018)
We report on precise localization spectroscopy experiments of individual 13C nuclear spins near a central electronic sensor spin in a diamond chip. By detecting the nuclear free precession signals in rapidly switchable external magnetic fields, we re
Externí odkaz:
http://arxiv.org/abs/1806.04883
Publikováno v:
Science 356, 837 (2017)
Quantum sensing takes advantage of well controlled quantum systems for performing measurements with high sensitivity and precision. We have implemented a concept for quantum sensing with arbitrary frequency resolution, independent of the qubit probe
Externí odkaz:
http://arxiv.org/abs/1706.01754
Autor:
Zopes, J., Sasaki, K., Cujia, K. S., Boss, J. M., Chang, K., Segawa, T. F., Itoh, K. M., Degen, C. L.
Publikováno v:
Phys. Rev. Lett. 119, 260501 (2017)
We investigate the application of amplitude-shaped control pulses for enhancing the time and frequency resolution of multipulse quantum sensing sequences. Using the electronic spin of a single nitrogen vacancy center in diamond and up to 10,000 coher
Externí odkaz:
http://arxiv.org/abs/1705.07968
Publikováno v:
Phys. Rev. B 95, 064413 (2017)
We report hyperpolarization of the electronic spins associated with substitutional nitrogen defects in bulk diamond crystal. Hyperpolarization is achieved by optical pumping of nitrogen vacancy centers followed by rapid cross relaxation at the energy
Externí odkaz:
http://arxiv.org/abs/1612.08104
We realize a two-qubit sensor designed for achieving high spectral resolution in quantum sensing experiments. Our sensor consists of an active "sensing qubit" and a long-lived "memory qubit", implemented by the electronic and the nitrogen-15 nuclear
Externí odkaz:
http://arxiv.org/abs/1610.03253
Publikováno v:
Phys. Rev. Lett. 116, 197601 (2016)
We report on Fourier spectroscopy experiments performed with near-surface nitrogen-vacancy centers in a diamond chip. By detecting the free precession of nuclear spins rather than applying a multipulse quantum sensing protocol, we are able to unambig
Externí odkaz:
http://arxiv.org/abs/1512.03178
Publikováno v:
Phys. Rev. X 5, 021009 (2015)
Multipulse sequences based on Carr-Purcell decoupling are frequently used for narrow-band signal detection in single spin magnetometry. We have analyzed the behavior of multipulse sensing sequences under real-world conditions, including finite pulse
Externí odkaz:
http://arxiv.org/abs/1412.5768
Publikováno v:
Nature Communications 5, 3638 (2014)
We present nanofabrication and mechanical measurements of single-crystal diamond cantilevers with thickness down to 85 nm, thickness uniformity better than 20 nm, and lateral dimensions up to 240 um. Quality factors exceeding one million are found at
Externí odkaz:
http://arxiv.org/abs/1212.1347
Publikováno v:
Science, 2015 Jan 01. 347(6218), 139-139.
Externí odkaz:
http://www.jstor.org/stable/24745724
