An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Polynomially-large ground-state energy gaps are rare in many-body quantum systems, but required for adiabatic quantum computing. We show analytically that the
Christopher L. Holloway, Edward E. Kuester, David R. Novotny
In this paper we illustrate how metafilms (the two-dimensional equivalent of metamaterials) can be used to design novel waveguiding structures. The metafilm
Kirt A. Page, Jong K. Park, R B. Moore, Victoria Garcia Sakai
This work demonstrates the ability of quasi-elastic neutron scattering (QENS) to measure the dynamics associated with counterions in perfluorosulfonate ionomers
Yingmei Liu, Sebastian Jung, Stephen E. Maxwell, Lincoln Turner, Eite Tiesinga, Paul D. Lett
Spinor Bose-Einstein condensates of F=1 sodium atoms display interesting spin population dynamics due to the antiferromagnetic nature of the interactions in
Yifu Ding, Sebastian Pawlus, Alexei Sokolov, Jack F. Douglas, Alamgir Karim, Christopher Soles
We investigate the influence of adding C60 nanoparticles on the dielectric relaxation spectra of both unentangled and entangled polyisoprene (PIP). Relaxation
Karl K. Irikura, Russell D. Johnson III, Raghu N. Kacker, Ruediger Kessel
Vibrational zero-point energies (ZPEs) determined from ab initio calculations are often scaled by empirical factors. An empirical scaling factor partially
The amount of time to protect enterprise systems against potential vulnerability continues to shrink. Enterprises need an effective patch management mechanism
Robert D. Chirico, Vladimir Diky, Joe W. Magee, Michael D. Frenkel, Kenneth N. Marsh
This article is a product of IUPAC Project 2002-005-1-100 (Thermodynamics of ionic liquids, ionic liquid mixtures, and the development of standardiized systems)
Christopher G. Soares, G. Douyssey, Michael G. Mitch
Current primary standards for the calibration of both photon and beta particle emitting brachythrapy sources are reviewed. Methods for quality control being
David J. Evans, Adriana Hornikova, Stefan D. Leigh, Andrew L. Rukhin, William E. Strawderman
The first regional key comparison in vibration conducted under the auspices of the Inter-American System of Metrology (SIM) was begun in 1996. The comparison
Kenneth N. Marsh, Joan F. Brennecke, Robert D. Chirico, Michael D. Frenkel, Andreas Heintz, Joe W. Magee, Cor J. Peters, Luis P. Rebelo, Kenneth R. Seddon
This article summarized the results of IUPAC Project 2002-005-1-100 (Thermodynamics of ionic liquids, ionic liquid mixtures, and the development of standardized
N Guisinger, Gregory M. Rutter, Jason Crain, Phillip N. First, Joseph A. Stroscio
The realization of graphene-based electronics involves numerous challenges that include large-scale device fabrication and the ability to control the electronic
Analysis of the structural and optical properties of gold- and copper-catalyzed zinc oxide (ZnO) nanowires (NWs), grown in a high temperature tube furnace on a
Jun Y. Chung, Thomas Q. Chastek, Michael J. Fasolka, Hyun W. Ro, Christopher Stafford
Residual stress, a pervasive consequence of solid materials processing, is stress that remains in a material after external forces have been removed. In
Transversal gates play an important role in the theory of fault-tolerant quantum computation due to their simplicity and robustness to noise. By definition
Indubala I. Satija, Radha Balakrishnan, P. Naudus, Jeffrey Heward, M Edwards, Charles W. Clark
We study the coherent nonlinear tunneling dynamics of a binary mixture of Bose-Einstein condensates in a double-well potential. We demonstrate the existence of
It is shown that the Debye-Waller factor for graphene has a singularity. However, the singularity does not affect the zero-temperature value of the Debye-Waller
Ion Garate, Keith Gilmore, Mark D. Stiles, Allan H. MacDonald
The motion of simple domain walls and of more complex magnetic textures in the presence of a transport current is described by the Landau-Lifshitz-Slonczewski
Chengqing C. Wang, Wei-En Fu, Bin Li, Huai Huang, Christopher Soles, Eric K. Lin, Wen-Li Wu, Paul S. Ho, Michael W. Cresswell
Small angle X-ray scattering (SAXS) was used to characterize the line cross section of nanoline gratings fabricated using electron beam lithography (EBL)
We have developed a fiber-optic interferometer optimized for best performance in the frequency range from DC to 1 kHz, with displacement linearity of 1 % over a
Igor Levin, Victor L. Krayzman, Joseph C. Woicik, J. Karapetrova, T. Proffen, M. G. Tucker, I. M. Reaney
Structural changes among the so-called M-polymorphs of AgNbO3 were analyzed using combined high-resolution X-ray diffraction, neutron total scattering, electron
Joseph M. Antonucci, Anthony A. Giuseppetti, Justin N. O'Donnell, Gary E. Schumacher, Drago Skrtic
Objective: To assess the effect of the cavity design factor (C-factor) on polymerization stress development (PSD) in resin composites. Methods: An experimental
We present catalogs of QSO candidates selected using photometry from GALEX combined with SDSS in the Stripe 82 region and Blanco Cosmology Survey (BCS) near
Christopher C. White, Donald L. Hunston, Kar T. Tan
The effects of applied strain on sealants exposed to outdoor weathering were examined for two sealant formulations, sealants A and C. Both static and dynamic
Jack R. Smith, Marcus T. Cicerone, Curtis W. Meuse
A non-destructive infrared (IR) spectroscopy assay is used to measure changes the tertiary structure of Bovine Serum Albumin (BSA) adsorbed to three surfaces
Interest in the domestic production of bio-derived fuels, sparked by the high cost of petroleum crude oil, has lead to consideration of fluids to replace or
While classical studies of dislocation behavior have focused on the motion and multiplication of dislocations, recent advances in experimental methods allow
Yvonne B. Gerbig, Dylan Morris, Stephan J. Stranick, Mark D. Vaudin, Robert F. Cook
In a statistical nanoindentation study using a spherical probe, the effect of crystallographic orientation on the phase transformation of silicon (Si) was
Michael W. Halter, John T. Elliott, Joseph B. Hubbard, Alessandro Tona, Anne L. Plant
A population of cells in culture displays a range of phenotypic responses, even when those cells are derived from a single cell and are exposed to a homogeneous
We develop two direct methods to simultaneously measure the dynamic capillary pressure and the viscosity of fluids by application of differential forces during