Browsing Scholarly Works, Department of Physics by Title
Now showing items 753772 of 789

Ultrafast photogeneration mechanisms of triplet states in parahexaphenyl
(American Physical Society, 199906)We present femtosecond pumpprobe measurements, both conventional and electric fieldassisted, on organic lightemitting devices based on parahexaphenyl. The dominant triplet excition generation mechanism is assigned to ... 
Ultraviolet and Xray Variability of the Seyfert 1.5 Galaxy Markarian 817
(IOP PUBLISHING LTD, 201102)We present an investigation of the ultraviolet and Xray spectra of the Seyfert 1.5 galaxy Markarian 817. The ultraviolet analysis includes two recent observations taken with the Cosmic Origins Spectrograph (COS) in 2009 ... 
Uniqueness of solutions to the linearized Boltzmann equation
(AIP Publishing, 197801)Uniqueness theorems are proved for the linearized Boltzmann equation for both the ’’exterior’’ and ’’interior’’ problems under generalized Maxwellboundary conditions. The solution space is a weighted L p space, and agrees ... 
Universal torsion induced interaction from large extra dimensions
(Amer Inst Physics, 20010101) 
Universal torsioninduced interaction from large extra dimensions
(American Physical Soc, 20001030) 
Universality classes for critical wetting
(American Physical Society, 198508)The systematics of the wetting transition at solidgas interfaces in systems interacting with inversepowerlaw potentials is investigated. The correct form of the effective Hamiltonian for l, the interfacesubstrate separation, ... 
Universality classes in the anisotropic KardarParisiZhang model
(E D P Sciences, 20020901) 
Universality in the percolation problem—Anomalous dimensions of φ4 operators
(American Physical Society, 197705)We consider critical systems, such as the percolation problem, whose symmetry permits an invariant interaction of third order in the fluctuating fields φ. In the renormalizationgroup approach one is naturally led to look ... 
Unusual water flux in the extracellular polysaccharide of the cyanobacterium Nostoc commune
(Amer Soc Microbiology, 20030901)The speed of water uptake by desiccated Nostoc commune was found to depend upon the duration of desiccation. The rehydration of desiccated colonies led to marked, timedependent changes in structure and ultrastructure ... 
Upconverting nanocomposites dispersed in ureacontaining acrylics
(The Royal Society of Chemistry, 20150508)Lanthanidedoped upconverting nanoparticles (UCNPs) have the ability to convert low energy photons into high energy photons, making this material appealing for a variety of scientific pursuits, from solar energy conversion ... 
Using L/E Oscillation Probability Distributions
This paper explores the use of L/E oscillation probability distributions to compare experimental measurements and to evaluate oscillation models. In this case, L is the distance of neutrino travel and E ... 
Using reactors to measure theta(13)
(2004) 
UVbright nearby earlytype galaxies observed in the midinfrared: evidence for a multistage formation history by way of WISE and GALEX imaging
(IOP Publishing Ltd., 201310)In the local universe, 10% of massive elliptical galaxies are observed to exhibit a peculiar property: a substantial excess of ultraviolet emission than what is expected from their old, red stellar populations. Several ... 
Validating quantumclassical programming models with tensor network simulations
(PLOS, 20181210)The exploration of hybrid quantumclassical algorithms and programming models on noisy nearterm quantum hardware has begun. As hybrid programs scale towards classical intractability, validation and benchmarking are critical ... 
Variational and nonvariational principles in quantum transport calculations
(American Physical Society, 200207)A variational principle is not generally satisfied in steadystate quantum transport as opposed to the case of groundstate problems. We show that for a shortrange potential, a functional for the scattering amplitude can ... 
Variational ground state for the periodic Anderson model
(American Institute of Physics, 19880415)A variational calculation of the ground state of the Anderson lattice model is discussed. The calculation creates a finite Hamiltonian matrix for many_electron states, which are appropriate for the thermodynamic limit. A ... 
Variational study of the spingap phase of the onedimensional tJ model
(American Physical Society, 19961001)We propose a correlated spinsingletpair wave function to describe the spingap phase of the onedimensional tJ model at low density and large J/t. In addition to having singlet pairs, this wave function has a Jastrow ... 
Viability of competing field theories for the driven lattice gas
(American Physical Soc, 20000501) 
Viability of competing field theories for the driven lattice gas
(American Physical Society, 200005)It has recently been suggested that the driven lattice gas should be described by an alternate held theory in the limit of infinite drive. We review the original and the alternate field theory, invoking several welldocumented ... 
Vlasov theory of plasma oscillations: linearapproximation
(AIP Publishing, 1977)A functional analytic approach to the linearized collisionless Vlasov equation is presented utilizing a resolvent integration technique on the resolvent of the transport operator evaluated at a particular point. Formulae ...