Search Results - "Walsworth, R.L."
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Solid-state electronic spin coherence time approaching one second
Published in Nature communications (23-04-2013)“…Solid-state spin systems such as nitrogen-vacancy colour centres in diamond are promising for applications of quantum information, sensing and metrology…”
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Electromagnetically induced transparency-based slow and stored light in warm atoms
Published in Laser & photonics reviews (01-05-2012)“…This paper reviews recent efforts to realize a high‐efficiency memory for optical pulses using slow and stored light based on electromagnetically induced…”
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An open-access, very-low-field MRI system for posture-dependent 3He human lung imaging
Published in Journal of magnetic resonance (1997) (01-08-2008)“…We describe the design and operation of an open-access, very-low-field, magnetic resonance imaging (MRI) system for in vivo hyperpolarized 3He imaging of the…”
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Optical magnetic imaging of living cells
Published in Nature (London) (25-04-2013)“…A diamond chip with nitrogen–vacancy centres is used for magnetic imaging of living magnetotactic bacteria with sub-cellular spatial resolution. Bio-magnetic…”
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Nuclear magnetic resonance detection and spectroscopy of single proteins using quantum logic
Published in Science (American Association for the Advancement of Science) (19-02-2016)“…Nuclear magnetic resonance spectroscopy is a powerful tool for the structural analysis of organic compounds and biomolecules but typically requires macroscopic…”
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Nanoscale magnetic sensing with an individual electronic spin in diamond
Published in Nature (02-10-2008)“…Detection of weak magnetic fields with nanoscale spatial resolution is an outstanding problem in the biological and physical sciences. For example, at a…”
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Repetitive Readout of a Single Electronic Spin via Quantum Logic with Nuclear Spin Ancillae
Published in Science (American Association for the Advancement of Science) (09-10-2009)“…Robust measurement of single quantum bits plays a key role in the realization of quantum computation and communication as well as in quantum metrology and…”
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Atomic Memory for Correlated Photon States
Published in Science (American Association for the Advancement of Science) (11-07-2003)“…We experimentally demonstrate emission of two quantum-mechanically correlated light pulses with a time delay that is coherently controlled via temporal storage…”
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The Narrow Pulse Approximation and Long Length Scale Determination in Xenon Gas Diffusion NMR Studies of Model Porous Media
Published in Journal of magnetic resonance (1997) (01-06-2002)“…We report a systematic study of xenon gas diffusion NMR in simple model porous media, random packs of mono-sized glass beads, and focus on three specific areas…”
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Tortuosity measurement and the effects of finite pulse widths on xenon gas diffusion NMR studies of porous media
Published in Magnetic resonance imaging (01-04-2001)“…We have extended the utility of NMR as a technique to probe porous media structure over length scales of ∼100–2000 μm by using the spin 1/2 noble gas 129Xe…”
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Journal Article Conference Proceeding -
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A System for Low Field Imaging of Laser-Polarized Noble Gas
Published in Journal of magnetic resonance (1997) (01-12-1999)“…We describe a device for performing MRI with laser-polarized noble gas at low magnetic fields (<50 G). The system is robust, portable, inexpensive, and…”
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Applications of controlled-flow laser-polarized xenon gas to porous and granular media study
Published in Magnetic resonance imaging (01-04-2003)“…We report initial NMR studies of continuous flow laser-polarized xenon gas, both in unrestricted tubing, and in a model porous media. The study uses Pulsed…”
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Journal Article Conference Proceeding -
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Testing CPT and Lorentz symmetry with hydrogen masers
Published in Physical review. A, Atomic, molecular, and optical physics (01-12-2003)“…In a recent paper [Phys. Rev. D 63, 111101 (2001)] we reported a new limit on CPT (charge, parity, and time reversal) and Lorentz violation of the proton by…”
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Femtosecond laser frequency comb for precision astrophysical spectroscopy
Published in 2009 Conference on Lasers and Electro-Optics and 2009 Conference on Quantum electronics and Laser Science Conference (01-05-2009)“…High-resolution spectroscopy is a crucial tool for cosmology and the search for extrasolar planets. We present a laser comb with up to 40-GHz line spacing for…”
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Conference Proceeding -
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Demonstration of a Two Species Noble Gas Maser
Published in Physical review letters (04-11-1996)Get full text
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NMR of Laser-Polarized129Xe in Blood Foam
Published in Journal of magnetic resonance (1997) (01-05-1997)“…Laser-polarized129Xe dissolved in a foam preparation of fresh human blood was investigated. The NMR signal of129Xe dissolved in blood was enhanced by creating…”
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Test of the linearity of quantum mechanics in an atomic system with a hydrogen maser
Published in Physical review letters (28-05-1990)“…We extend a nonlinear generalization of quantum mechanics, recently formulated by Weinberg, to systems of composite spin, such as atoms. We have used hydrogen…”
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Dynamic optical bistability in resonantly enhanced Raman generation
Published in Physical review. A, Atomic, molecular, and optical physics (01-06-2004)“…We report observations of novel dynamic behavior in resonantly enhanced stimulated Raman scattering in Rb vapor. In particular, we demonstrate a dynamic…”
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Modulation-dependent frequency shifts in CPT-based atomic clocks
Published in Conference on Lasers and Electro-Optics, 2004. (CLEO) (2004)“…When frequency modulation is used to detect coherent population trapping resonances, shifts proportional to the modulation parameters and the laser detuning…”
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Conference Proceeding