Zobrazeno 1 - 10
of 53
pro vyhledávání: '"O. Knospe"'
Publikováno v:
The European Physical Journal D. 5:1-4
Charge transfer in collisions Na n + + Cs ( ) is investigated theoretically within a microscopic framework. It is shown that an understanding of the measured charge transfer cross-sections can be obtained only if the competing reaction channels (elec
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 30:5429-5449
Collisions of with neon and helium atoms were studied using molecular dynamics with empirical two- and three-body forces. Inelastic scattering including the capture of the rare-gas atom and fragmentation were analysed at collision energies in the cen
Publikováno v:
Il Nuovo Cimento A. 110:1201-1208
Adiabatic collisions (fusion, deep inelastic scattering) between two fullerenes are investigated on the basis ofQuantum Molecular Dynamics. As a first application of the so-calledNon-adiabatic Quantum Molecular Dynamics, developed recently, the non-a
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 29:5163-5174
A theoretical study on collisions between fullerenes for the systems , and is presented covering a wide range of collision energies (50 < E < 250 eV in the centre-of-mass frame). Quantum molecular dynamics (QMD) simulations enable a detailed insight
Publikováno v:
Physical Review Letters. 76:3289-3292
Interactions between systems with a large but finite number of degrees of freedom play an important role in many branches of physics ranging from nuclear collisions to collisions between galaxies. We report the first experimental collision energy dep
Autor:
R. Schmidt, O. Knospe
Publikováno v:
Zeitschrift f�r Physik D Atoms, Molecules and Clusters. 37:85-88
An alternative class of Rydberg systems is presented consisting of two oppositely charged atomic clusters in a bound state with high angular momentum and large binding energy (“Rydberg clusters”). The basic structural properties, the stability an
Publikováno v:
Physics Letters A. 198:51-54
Differential cross sections for mass and angular distributions in C 60 + (1 keV) + C 60 collisions are calculated using quantum molecular dynamics. The time-resolved, impact-parameter integrated mass spectrum provides a transparent insight into diffe
Publikováno v:
Physics Letters A. 194:101-105
Quantum molecular dynamics calculations of near central C 60 + + C 60 ( E c.m. = 500 eV) collisions show clear evidence of spontaneous multifragmentation and collective flow effects in close analogy to the mechanism of high-energetic heavy-ion collis
Autor:
Eberhard Engel, U. R. Schmitt, Hans Otto Lutz, Rüdiger Schmidt, O. Knospe, Reiner M. Dreizler
Publikováno v:
Physics Letters A. 183:332-337
The intercluster potential for the systems Na8 + Na8, Na9 + Na9, Na19 + Na19 and Na20 + Na20 and the fragmentation potentials of Na40, Na58, Na68 and Na92 are calculated on the basis of density functional theory in the local density approximation and
Autor:
U. R. Schmitt, H. J. Lüdde, Rüdiger Schmidt, A. Toepfer, E. Wüst, Reiner M. Dreizler, O. Knospe, P. Chattopadhyay, Eberhard Engel
Publikováno v:
Physical Review B. 48:1862-1869
We investigate the structure of (Na 19 ) 2 -cluster timers via solution of the Kohn-Sham equations for a two-center jellium model. Results for the binding energy of the trimer as a function of the intercluster separation as well as the electronic cor