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CreatorTitleDescriptionSubjectDate
201 DeTar, CarletonHigh-precision lattice QCD confronts experimentThe recently developed Symanzik-improved staggered-quark discretization allows unquenched lattice-QCD simulations with much smaller (and more realistic) quark masses than previously possible. To test this formalism, we compare experiment with a variety of nonperturbative calculations in QCD draw...Staggered quarks2004-01
202 Wu, Yong-ShiIntegrable spin chain and operator mixing in N = 1,2 supersymmetric theoriesWe study operator mixing, due to planar one-loop corrections, for composite operators in D = 4 supersymmetric theories. We present some N = 1, 2 Yang-Mills and Wess-Zumino models, in which the planar one-loop anomalous dimension matrix in the sector of holomorphic scalars is identified with the Hami...2004-04
203 Furse, Cynthia M.Laboratory Project in Wireless FSK Receiver DesignThis paper describes a wireless local area network laboratory project that provides senior and first-year graduate students in microwave engineering courses the opportunity to design, build, and test several passive microstrip components and integrate them into a working system. Students design fil...Microwave engineering; Project-based education2004-02
204 Olson, Randall J.Legacy AdvanTec and Sovereign WhiteStar: a wound temperature studyPURPOSE: To assess the wound temperature of the Sovereign WhiteStar (S-WS) (AMO) and Legacy AdvanTec (L-ADV) (Alcon) phacoemulsification systems. SETTING: John A. Moran Eye Center, Health Sciences Center, University of Utah, Salt Lake City, Utah, USA. METHODS: Phacoemulsification using 20-gauge, 30-...Eye Burns; Wound Temperature; Phacoemulsification Systems2004-05
205 Landesman, Margaret M.Libraries investing in the future first - some practical suggestionsThis essay offers some practical suggestions for implementing transformative strategies for libraries, with a focus on using the materials budget as an investment fund.Libraries; Acquisitions; Budget; Materials2004-06
206 DeTar, CarletonLight hadrons with improved staggered quarks: approaching the continuum limitWe have extended our program of QCD simulations with an improved Kogut-Susskind quark action to a smaller lattice spacing, approximately 0.09 fm. Also, the simulations with a ≈ 0.12 fm have been extended to smaller quark masses. In this paper we describe the new simulations and computations of the...Staggered quarks; Hadronic decay2004-11
207 DeTar, CarletonLight hadrons with improved staggered quarks: approaching the continuum limitWe have extended our program of QCD simulations with an improved Kogut-Susskind quark action to a smaller lattice spacing, approximately 0.09 fm. Also, the simulations with a ≈ 0:12 fm have been extended to smaller quark masses. In this paper we describe the new simulations and computations of the...Staggered quarks; Hadronic decay2004-11
208 DeTar, CarletonLight pseudoscalar decay constants, quark masses, and low energy constants from three-flavor lattice QCDAs part of our program of lattice simulations of three-flavor QCD with improved staggered quarks, we have calculated pseudoscalar meson masses and decay constants for a range of valence quark masses and sea-quark masses on lattices with lattice spacings of about 0.125 and 0.09 fm. We fit the lattic...Staggered quarks; Chiral symmetry; Perturbation theory2004-12
209 Liu, FengLocal strain-mediated chemical potential control of quantum dot self-organization in heteroepitaxyFrom observations of self-assembly of Ge quantum dots directed by substrate morphology, we propose the concept of control of ordering in heteroepitaxy by a local strain-mediated surface chemical potential. Using quite simple lithography, we demonstrate directed quantum dot ordering. The strain part ...Self-organization; Heteroepitaxy; Chemical potential control; Ge quantum dots2004-01
210 Saam, BrianLow-field orientation dependence of 3He relaxation in spin-exchange cellsWe have observed a significant dependence of 3He longitudinal relaxation times in glass spin-exchange optical pumping (SEOP) cells due only to the physical orientation of the cell in a 3 mT (30 G) applied magnetic field. The cells had no previous exposure to higher fields or were thoroughly degau...Spin-exchange optical pumping; SEOP; 3He; Hyperpolarized noble gases; Longitudinal spin-relaxation; MEOP; Low-field orientation2004-02
211 Freire, JulianaManaging XML data: an abridged overviewXML's flexibility makes it a natural format for both exchanging and integrating data from diverse data sources. In this survey, the authors give an overview of issues in managing XML data, discuss existing solutions, and outline the current technology's open problems and limitations.XDM2004-07
212 Kieda, David B.; Bergman, Douglas R.; Sokolsky, PierreMeasurement of the flux of ultrahigh energy cosmic rays from monocular observations by the high resolution fly's eye experimentWe have measured the cosmic ray spectrum above 10^172 eV using the two air-fluorescence detectors of the High Resolution Fly's Eye observatory operating in monocular mode.We describe the detector, phototube, and atmospheric calibrations, as well as the analysis techniques for the two detectors.We ...High Resolution Fly's Eye; Ultrahigh energy cosmic rays2004-04
213 Sokolsky, PierreMeasurement of the flux of ultrahigh energy cosmic rays from monocular observations by the High Resolution Fly's Eye experimentWe have measured the cosmic ray spectrum above 1017.2 eV using the two air-fluorescence detectors of the High Resolution Fly's Eye observatory operating in monocular mode.We describe the detector, phototube, and atmospheric calibrations, as well as the analysis techniques for the two detectors.We fi...Extensive air showers; Fluorescence; Energy spectrum2004-04
214 Arlitsch, Kenning; Herbert, JohnMicrofilm, paper, and OCR: issues in newspaper digitization at the Utah digital newspapers programDescribes the issues surrounding digitizing newspapers from microfilm and paper in the Utah Digital Newspapers program. The paper also explores optical character recognition (OCR) accuracy and the problems of digital file storage of newspapers.Digital libraries; Microfilms, Deterioration; Newspaper office libraries2004-03
215 Lupton, John MarkMonitoring surface charge movement in single elongated semiconductor nanocrystalsWe demonstrate a universal correlation between the spectral linewidth and position of the excitonic transition in the spectral jitter observed from single elongated colloidal quantum dots. Breaking the symmetry of electron and hole confinement as well as of the spatial directions for surface charge ...Surface charge movement; Spectral linewidth; Excitonic transition; Spectral jitter; Colloidal nanocrystals2004-10
216 Sokolsky, PierreObserving the ultrahigh energy universe with OWL eyesThe goal of the Orbiting Wide-field Light-collectors (OWL) mission is to study the origin and physics of the highest energy particles known in nature, the ultrahigh energy cosmic rays (UHECRs). The OWL mission consists of telescopes with UV sensitive cameras on two satellites operating in tandem to ...Ultra-high energy cosmic rays; Fluorescence; Air showers2004-11
217 Wu, Yong-ShiOpen spin chain and open spinning stringIn this letter, we study the open spinning strings and their SYM duals. A new class of folded open spinning strings is found. At planar one-loop level in SYM, by solving the thermodynamic limit of the Bethe ansatz equations for an integrable open spin chain, we find good agreement with string theory...2004-07
218 Wu, Yong-ShiPerturbative formulation and nonadiabatic corrections in adiabatic quantum-computing schemesAdiabatic limit is the presumption of the adiabatic geometric quantum computation and of the adiabatic quantum algorithm. But in reality, the variation speed of the Hamiltonian is finite. Here we develop a general formulation of adiabatic quantum computing, which accurately describes the evolution...Perturbative formulation; Nonadiabatic corrections; Adiabatic2004-02
219 DeTar, CarletonPhase diagram of high temperature QCD with three flavors of improved staggered quarksWe report on progress in our study of high temperature QCD with three flavors of improved staggered quarks. Simulations are being carried out with three degenerate quarks with masses less than or equal to the strange quark mass, ms, and with degenerate up and down quarks with masses in the range 0...Staggered quarks2004-03
220 Vardeny, Zeev ValentinePhotoexcitation dynamics and laser action in solutions and films of PPE-PPV copolymerWe used a variety of ultrafast and steady-state spectroscopy techniques to study the photoexcitation dynamics and laser action in dilute and concentrated solutions and in thin films of poly(phenylene-ethynylene)/ poly(phenylene-vinylene) [PPE-PPV] copolymer. We found that the primary photoexcitatio...Photoexcitation dynamics; Laser action; PPE-PPV copolymers2004-04
221 Mishchenko, EugenePlasmon attenuation and optical conductivity of a two-dimensional electron gasIn a ballistic two-dimensional electron gas, the Landau damping does not lead to plasmon attenuation in a broad interval of wave vectors q≤kF . Similarly, it does not contribute to the optical conductivity σ(ω,q) in a wide domain of its arguments, EF>ω>qvF , where EF , kF , and vF are, respec...Optical conductivity; Plasmon-phonon conversion; Landau damping2004-05
222 Liu, FengPressure-induced hard-to-soft transition of a single carbon nanotubeWe demonstrate a hydrostatic pressure-induced hard-to-soft transition of an isolated single wall carbon nanotube, using classical and ab initio constant-pressure molecular-dynamics simulations and continuum elastic theory analysis. At low pressure, the carbon tube is hard. Above a critical pressur...Carbon nanotubes; Hard-to-soft transition2004-10
223 DeTar, CarletonQuark loop effects in semileptonic form factors for heavy-light mesonsWe present preliminary results of a determination of the semileptonic form factor for the decay of pseudoscalar heavy-light mesons to pseudoscalar light-light mesons in full QCD. In this preliminary study we focus on the effects of dynamical quark loops. Accordingly, we compare results of simulati...Semileptonic decay; Form factors; Quark loops; Wilson quarks2004-03
224 Wu, Yong-ShiQuiver matrix mechanics for IIB string theory (I): wrapping membranes and emergent dimensionIn this paper we present a discrete, non-perturbative formulation for type IIB string theory. Being a supersymmetric quiver matrix mechanics model in the framework of M(atrix) theory, it is a generalization of our previous proposal of compactification via orbifolding for deconstructed IIA strings. ...2004-04
225 Research in brief: Fall 2004Summaries of Selected Research Projects at the University of Utah Health Sciences CenterResearch: School of Medicine, College of Pharmacy;, College of Nursing, College of Health2004-09
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