Global Analytical Potential Hypersurface for Large Amplitude Nuclear Motion and Reactions in Methane II. Characteristic Properties of the Potential and Comparison to Other Potentials and Experimental Information†

2004 ◽  
Vol 108 (15) ◽  
pp. 3166-3181 ◽  
Author(s):  
Roberto Marquardt ◽  
Martin Quack
Keyword(s):  
Large Amplitude ◽  
Experimental Information ◽  
Nuclear Motion ◽  
Analytical Potential

Global Analytical Potential Energy Surface for Large Amplitude Nuclear Motions in Ammonia†

2005 ◽  
Vol 109 (17) ◽  
pp. 8439-8451 ◽  
Author(s):  
Roberto Marquardt ◽  
Kenneth Sagui ◽  
Wim Klopper ◽  
Martin Quack
Keyword(s):  
Potential Energy ◽  
Potential Energy Surface ◽  
Large Amplitude ◽  
Energy Surface ◽  
Analytical Potential

Large-amplitude nuclear motion formulated in terms of dissipation of quantum fluctuations

2017 ◽  
Vol 48 (1) ◽  
pp. 158-209 ◽  
Author(s):  
R. A. Kuzyakin ◽  
V. V. Sargsyan ◽  
G. G. Adamian ◽  
N. V. Antonenko
Keyword(s):  
Large Amplitude ◽  
Quantum Fluctuations ◽  
Nuclear Motion

On nearly-commensurable periods in the restricted problem of three bodies, with calculations of the long-period variations in the interior 2:1 case

1966 ◽  
Vol 25 ◽  
pp. 197-222 ◽  
Author(s):  
P. J. Message
Keyword(s):  
Periodic Solution ◽  
Periodic Solutions ◽  
Large Amplitude ◽  
Restricted Problem ◽  
Small Amplitude ◽  
Minor Planets ◽  
Long Period ◽  
Numerical Integrations ◽  
Period Variations ◽  
The Mean

An analytical discussion of that case of motion in the restricted problem, in which the mean motions of the infinitesimal, and smaller-massed, bodies about the larger one are nearly in the ratio of two small integers displays the existence of a series of periodic solutions which, for commensurabilities of the typep+ 1:p, includes solutions of Poincaré'sdeuxième sortewhen the commensurability is very close, and of thepremière sortewhen it is less close. A linear treatment of the long-period variations of the elements, valid for motions in which the elements remain close to a particular periodic solution of this type, shows the continuity of near-commensurable motion with other motion, and some of the properties of long-period librations of small amplitude.To extend the investigation to other types of motion near commensurability, numerical integrations of the equations for the long-period variations of the elements were carried out for the 2:1 interior case (of which the planet 108 “Hecuba” is an example) to survey those motions in which the eccentricity takes values less than 0·1. An investigation of the effect of the large amplitude perturbations near commensurability on a distribution of minor planets, which is originally uniform over mean motion, shows a “draining off” effect from the vicinity of exact commensurability of a magnitude large enough to account for the observed gap in the distribution at the 2:1 commensurability.

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