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REACTION DYNAMICS
REACTION DYNAMICS

... Centrifugal barrier Excitation function Potential energy surface What information can infra-red chemiluminescence provide on the energetics and/or dynamics of a chemical reaction? What other experimental methods can be used to obtain similar information? ...
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... Use the level of significance to find the critical value from the table of data in the data booklet:  Go down the left column until you reach the number of degrees of freedom (here 2)  Go across until you reach the column represented by 1 – significance level. For example go across until you reach ...
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THERMAL FLUCTUATIONS IN HEAVY

... or less compact shape while slowly moving inwards, and which may be associated to the fusion process, and another that scatters away under the influence of the Coulomb potential, and which should therefore be considered to represent a deep inelastic process. Fig. 4 further emphasises these contrasti ...
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... computing using basic ideas of quantum mechanics. Individual atomic particles are used as ‘bits’ of a computer, but instead of representing only ‘0’ and ‘1’, the quantum-mechanical wavefunction is used to simultaneously represent an infinitely variable range of values. Such systems have the potentia ...
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... electrons within particular shells and subshells. • The intensity (shown as the height on a graph) of the photoemission signal at a given energy is a measure of the number of electrons in that shell or subshell. In other words the height of the PES signal is proportional to the number of electrons i ...
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Eigenstate thermalization hypothesis

The Eigenstate Thermalization Hypothesis (or ETH) is a set of ideas which purports to explain when and why an isolated quantum mechanical system can be accurately described using equilibrium statistical mechanics. In particular, it is devoted to understanding how systems which are initially prepared in far-from-equilibrium states can evolve in time to a state which appears to be in thermal equilibrium. The phrase ""eigenstate thermalization"" was first coined by Mark Srednicki in 1994, after similar ideas had been introduced by Josh Deutsch in 1991. The principal philosophy underlying the eigenstate thermalization hypothesis is that instead of explaining the ergodicity of a thermodynamic system through the mechanism of dynamical chaos, as is done in classical mechanics, one should instead examine the properties of matrix elements of observable quantities in individual energy eigenstates of the system.
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