Browsing FAS Scholarly Articles by Title
Now showing items 7068-7087 of 18292
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High-Energy Quasiparticle Injection into Mesoscopic Superconductors
(Springer Science and Business Media LLC, 2021-01-18)At nonzero temperatures, superconductors contain excitations known as Bogoliubov quasiparticles. The mesoscopic dynamics of quasiparticles inform the design of quantum information processors, among other devices. Knowledge ... -
High-ET isolated-photon plus jets production in pp collisions at s√= 8 TeV with the ATLAS detector
(Elsevier BV, 2017)The dynamics of isolated-photon plus one-, two- and three-jet production in pp collisions at a centre-of-mass energy of 8 TeV are studied with the ATLAS detector at the LHC using a data set with an integrated luminosity ... -
High-fidelity CRISPR-Cas9 variants with undetectable genome-wide off-targets
(2015)CRISPR-Cas9 nucleases are widely used for genome editing but can induce unwanted off-target mutations. Existing strategies for reducing genome-wide off-targets of the broadly used Streptococcus pyogenes Cas9 (SpCas9) are ... -
High-Fidelity Entangling Gate for Double-Quantum-Dot Spin Qubits
(Springer Nature, 2017-01-19)Electron spins in semiconductors are promising qubits because their long coherence times enable nearly 109 coherent quantum gate operations. However, developing a scalable high-fidelity two-qubit gate remains challenging. ... -
High-Flux Beam Source for Cold, Slow Atoms or Molecules
(American Physical Society (APS), 2005)We demonstrate and characterize a high-flux beam source for cold, slow atoms or molecules. The desired species is vaporized using laser ablation, then cooled by thermalization in a cryogenic cell of buffer gas. The beam ... -
A High-Frequency Doppler Feature in the Power Spectra of Simulated Grmhd Black Hole Accretion Disks
(IOP Publishing, 2014)Black hole binaries exhibit a wide range of variability phenomena, from large-scale state changes to broadband noise and quasi-periodic oscillations, but the physical nature of much of this variability is poorly understood. ... -
High-Frequency Transcranial Random Noise Stimulation Enhances Perception of Facial Identity
(Oxford University Press, 2015)Recently, a number of studies have demonstrated the utility of transcranial current stimulation as a tool to facilitate a variety of cognitive and perceptual abilities. Few studies, though, have examined the utility of ... -
A High-Latitude Convective Cloud Feedback and Equable Climates
(Royal Meteorological Society, 2008)A convective cloud feedback on extratropical surface temperatures is identified in a zonally averaged two-level atmospheric model. The model contains simplified parametrizations for convection, precipitation, and clouds, ... -
High-latitude Tertiary Migrations of an Exclusively Tropical Clade: Evidence from Malpighiaceae
(University of Chicago Press, 2004)Explanations of tropical intercontinental disjunctions involving South America and Africa typically invoke vicariance of western Gondwanan biotas or long-distance dispersal. However, many plant groups originated and ... -
The High-Metallicity Explosion Environment of the Relativistic Supernova 2009bb
(IOP Publishing, 2009)We investigate the environment of the nearby (d ≈ 40 Mpc) broad-lined Type Ic supernova SN 2009bb. This event was observed to produce a relativistic outflow likely powered by a central accreting compact object. While such ... -
High-performance midinfrared quantum cascade lasers
(SPIE-Intl Soc Optical Eng, 2010)The design and operating principles of quantum cascade lasers (QCLs) are reviewed along with recent developments in high-power cw and broadband devices. Cw power levels of several watts at room temperature have been achieved ... -
High-performance probes for light and electron microscopy
(2015)We describe an engineered family of highly antigenic molecules based on GFP-like fluorescent proteins. These molecules contain numerous copies of peptide epitopes and simultaneously bind IgG antibodies at each location. ... -
High-power low-divergence tapered quantum cascade lasers with plasmonic collimators
(AIP Publishing, 2013) -
High-power picosecond fiber source for coherent Raman microscopy
(Optical Society of America, 2009)We report a high-power picosecond fiber pump laser system for coherent Raman microscopy (CRM). The fiber laser system generates 3.5ps pulses with 6W average power at 1030nm. Frequency doubling yields more than 2W of green ... -
High-Precision Radio and Infrared Astrometry of Lspm J1314+1320ab. I. Parallax, Proper Motions, and Limits on Planets
(American Astronomical Society, 2016)We present multi-epoch astrometric radio observations with the Very Long Baseline Array (VLBA) of the young ultracool-dwarf binary LSPM J1314+1320AB . The radio emission comes from the secondary star. Combining the VLBA ... -
High-Precision Radio and Infrared Astrometry of Lspm J1314+1320ab. Ii. Testing Pre-Main-Sequence Models at the Lithium Depletion Boundary With Dynamical Masses
(American Astronomical Society, 2016)We present novel tests of pre-main-sequence models based on individual dynamical masses for the M7 binary LSPM J1314+1320AB. Joint analysis of Keck adaptive optics astrometric monitoring along with Very Long Baseline Array ... -
High-Pressure X-ray Diffraction and Raman Spectroscopy of Ice VIII
(American Institute of Physics, 2005)In situ high-pressure/low-temperature synchrotron x-ray diffraction and optical Raman spectroscopy were used to examine the structural properties, equation of state, and vibrational dynamics of ice VIII. The x-ray measurements ... -
High-purity orbital angular momentum states from a visible metasurface laser
(Springer Science and Business Media LLC, 2020-04-27) -
High-Q transverse-electric/transverse-magnetic photonic crystal nanobeam cavities
(AIP Publishing, 2011)We experimentally demonstrate high quality factor dual-polarized photonic crystal nanobeam cavities. The free-standing nanobeams are fabricated in a 500 nm thick silicon layer, and are probed using both tapered optical ...