Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 24 for “"thermalized"”.
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Statistical Mechanics of thermalized ribbons and sheets
… of the removed area. Lastly, we look at clamped thermalized ribbons and study thermalized Euler buckling. Again, we perform molecular dynamics simulations by clamping one end and allowing the other end to slide to get the projected thermal length of the ribbon. We compress this system and observe …
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Mutual Information of Two Distant Spheres and Expressions for Entropy in Nearly Conformal Gaussian Field Theories
… the entropy difference of massless scalar fields thermalized at a low temperature on the unit sphere. In particular, we find that the lowest order term for the entropy difference is proportional to the surface area of the sphere and we show that such an area law generally appears in a low energy …
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Measuring rate constants and product branching for reactions relevant to combustion and atmospheric chemistry
… or end-product analysis of a complex, thermalized process, such as pyrolysis. Laser flash photolysis (LFP) with molecular beam mass spectrometry (MBMS) offers a compromise between CMB and end-product experiments: the reaction conditions are thermalized but still simple enough that …
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A Molecular Dynamics Study of Sessile Droplet Evaporation
… are maintained at the same temperature as the thermalized substrate. After relaxation, the droplet adheres to the attractive patch as expected. Then a deletion zone is introduced into the top part of the vapor region. Fluid beads in this zone are removed at a given rate. To ensure that the …
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Semiconductor quantum dot lasers.
… regions of separate confinement heterostructures thermalized efficiently into the zero-dimensional QD states, and stimulated emission at $\sim$707 nm is observed at 77 Kelvin with a threshold current of 175 milliamperes for a 60-$\mu$m by 400-$\mu$m broad area laser. A measured external quantum …
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Photoassociation of krypton and fluorine collision pairs
… of F$\sb2$ followed by photoassociation of non-thermalized Kr-F collision pairs.
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Finite-temperature quantum field theory and the structure functions of the nucleon
… The interior of the nucleon is viewed as a thermalized assembly of up and down quarks and gluons. This enables the incorporation of features which are absent in the parton model. These include the presence of identical quarks and gluons in initial and final states and of quantum statistical …
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Suppression of High Transverse Momentum Charged Hadrons in Au+Au Collisions at 200 GeV Nucleon-Nucleon Center of Mass Energy
… At these energies the colliding ions may form a thermalized distribution of quarks and gluons called the Quark-Gluon Plasma. The suppression of single hadrons still provides one of the strongest constraints on energy loss mechanisms in the Quark-Gluon Plasma. Presently, neutral pions provide the …
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Low variance methods for Monte Carlo simulation of phonon transport
… notion of deviational particles. Noticing that a thermalized system at equilibrium is inherently a solution of the Boltzmann Transport Equation, we take advantage of this deterministic piece of information: we only simulate the deviation from a nearby equilibrium, which removes a great part of the …
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Positronium complex formation: mechanisms, solvent effects and its application to the study of molecular phenomena
… are 0.125 nsec and 140 nsec respectively. When thermalized o-Ps forms a complex with a molecule, the electron density at the position of the positron will be drastically increased thus shortening its lifetime. A study was performed to evaluate what role the solvent plays in stabilizing the …
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Coupled Rate and Transport Equations Modeling Light Yield, Pulse Shape, and Proportionality to Energy in Electron Tracks: A Study of CsI and CsI:Tl Scintillators
… tracks are initially very narrow before hot and thermalized carrier diffusion takes effect. This suggests that an adequate and computationally manageable representation may be obtained by modeling diffusion in one dimension, the radius. The initial track resulting from Monte Carlo simulations by …
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Partonic rescatterings during jet fragmentation in the QCD vacuum
… exhibits signatures of a strongly interacting, thermalized quark-gluon plasma (QGP). Searches in many other small systems have so far been inconclusive. These strongly interacting partonic systems are described by Quantum Chromodynamics (QCD) which is generally separated into perturbative and …
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Variational Algorithms and Resources for Near-Term Quantum Simulation
… quantum resources needed to represent thermalized subregions of a chaotic Potts model, which we use to address the feasibility for classical simulation of quantum hydrodynamics.
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Towards room-temperature Terahertz Quantum Cascade Lasers : directions and design
… integrals are simplified using the assumption of thermalized sub bands. Results comparable to ensemble Monte Carlo are achieved at a fraction of the computational expense. Carrier leakages to continuum states are also investigated, although they are found to have little effect. Other work in this …
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Dynamics of pions in ultrarelativistic heavy ion collisions
… pion fluid results in a novel, partially thermalized flow, in which the degree of thermalization is measured by the observed pion multiplicity. We develop a model of the freezeout of the conserved pion fluid, which we use to construct the invariant pion distribution in terms of the …
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Positronium formation in organic liquids and studies of micelle, liposome and polymer systems by position annihilation technique
… I₂ values, which are indicative of the number of thermalized positronium atoms formed, showed a good correlation with the dissociative electron attachment parameters of the solute species. The formation and the reactions of Ps were found to be very sensitive to structural changes and phase …
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The Effective Field Theory Approach to Fluid Dynamics
… the assumption that this microscopic sector is thermalized, allow us to characterize the leading dissipative effects at low frequencies via three parameters only, which correspond to bulk viscosity, shear viscosity, and---in the presence of a conserved charge---heat conduction. Using our methods …
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Generation, recombination and extraction of charges in polymer
… CT emission, induced via the recombination of thermalized charges in electroluminescence. For a variety of blends, the quantum yield at energies of charge transfer emission was identical to excitations with energies well above the optical band-gap. Thus, the generation proceeds via the split-up …
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Production methods of radiation sensitive ultrasound contrast agents and their response to neutron irradiation
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-11 without embargo terms
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Nonlinear Processes in Room Temperature Exciton-Polaritons
… the lattice temperature indicative of strongly thermalized exciton-polaritons at equilibrium. This efficient thermalization results from the interplay of radiative pumping facilitated by the energetics of the lower polariton branch and the cavity Q-factor. Direct evidence for dramatic switching …
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