Modeling Quantum Resonances: II. Overview of Collision Theory

Advanced Topics in Theoretical Chemical Physics - Progress in Theoretical Chemistry and Physics ◽

10.1007/978-94-017-0635-3_10 ◽

2003 ◽

pp. 295-310 ◽

Cited By ~ 1

Author(s):

Philippe Durand ◽

Ivana Paidarová

Keyword(s):

Collision Theory ◽

Quantum Resonances

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Quantum Resonances: Line Profiles and Dynamics

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc20030529 ◽

2003 ◽

Vol 68 (3) ◽

pp. 529-553 ◽

Cited By ~ 3

Author(s):

Ivana Paidarová ◽

Philippe Durand

Keyword(s):

Hydrogen Atom ◽

Operator Theory ◽

Quantum Dynamics ◽

Line Profiles ◽

Static Electric Field ◽

Reversal Effect ◽

Quantum Resonances ◽

Energy Dependent ◽

Effective Hamiltonians

The wave operator theory of quantum dynamics is reviewed and applied to the study of line profiles and to the determination of the dynamics of interacting resonances. Energy-dependent and energy-independent effective Hamiltonians are investigated. The q-reversal effect in spectroscopy is interpreted in terms of interfering Fano profiles. The dynamics of an hydrogen atom subjected to a strong static electric field is revisited.

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Effect of quantum resonances on local temperature in nonequilibrium open systems

Physical Review B ◽

10.1103/physrevb.103.085411 ◽

2021 ◽

Vol 103 (8) ◽

Author(s):

Xiangzhong Zeng ◽

Lyuzhou Ye ◽

Daochi Zhang ◽

Rui-Xue Xu ◽

Xiao Zheng ◽

...

Keyword(s):

Open Systems ◽

Local Temperature ◽

Quantum Resonances

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PLATELET AGGREGATION DOES NOT CONFORM TO SIMPLE PARTICLE COLLISION THEORY

10.1055/s-0038-1644550 ◽

1987 ◽

Author(s):

Moideen P Jamaluddin

Keyword(s):

Platelet Aggregation ◽

Rate Equation ◽

Rate Constants ◽

Kinetic Scheme ◽

Order Type ◽

Second Order ◽

Particle Collision ◽

Collision Theory ◽

Rate Law ◽

First Order

Platelet aggregation kinetics, according to the particle collision theory, generally assumed to apply, ought to conform to a second order type of rate law. But published data on the time-course of ADP-induced single platelet recruitment into aggregates were found not to do so and to lead to abnormal second order rate constants much larger than even their theoretical upper bounds. The data were, instead, found to fit a first order type of rate law rather well with rate constants in the range of 0.04 - 0.27 s-1. These results were confirmed in our laboratory employing gelfiltered calf platelets. Thus a mechanism much more complex than hithertofore recognized, is operative. The following kinetic scheme was formulated on the basis of information gleaned from the literature.where P is the nonaggregable, discoid platelet, A the agonist, P* an aggregable platelet form with membranous protrusions, and P** another aggregable platelet form with pseudopods. Taking into account the relative magnitudes of the k*s and assuming aggregation to be driven by hydrophobic interaction between complementary surfaces of P* and P** species, a rate equation was derived for aggregation. The kinetic scheme and the rate equation could account for the apparent first order rate law and other empirical observations in the literature.

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