2,501 research outputs found
Cellular automaton supercomputing
Many of the models now used in science and engineering are over a century old. And most of them can be implemented on modern digital computers only with considerable difficulty. Some new basic models are discussed which are much more directly suitable for digital computer simulation. The fundamental principle is that the models considered herein are as suitable as possible for implementation on digital computers. It is then a matter of scientific analysis to determine whether such models can reproduce the behavior seen in physical and other systems. Such analysis was carried out in several cases, and the results are very encouraging
Jet Development In Leading Log QCD
A simple picture of jet development in QCD is described. Various applications are treated, including transverse spreading of jets, hadroproduced γ* P_T distributions, lepton energy spectra from heavy quark decays, soft parton multiplicities and hadron cluster formation
Jet Development In Leading Log QCD
A simple picture of jet development in QCD is described. Various applications are treated, including transverse spreading of jets, hadroproduced γ* P_T distributions, lepton energy spectra from heavy quark decays, soft parton multiplicities and hadron cluster formation
How Did We Get Here? The Tangled History of the Second Law of Thermodynamics
An extensive survey is given of the historical origins of the Second Law of
thermodynamics, illustrated by excerpts from many original sources, and with
biographical information about key contributors. The major strands of
conceptual development of the Second Law are traced, in particular showing how
persistent beliefs about it emerged
The development of baryon asymmetry in the early universe
The development of an excess of baryons over antibaryons due to CP and baryon number violating reactions during the very early stages of the big bang is calculated in simple models using the Boltzmann equation. We show that it is necessary to solve the coupled Boltzmann equations in order to determine the final baryon number in any specific model
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