New PDF release: Atoms and Molecules in Strong External Fields

By P. Schmelcher, W. Schweizer

ISBN-10: 1441932917

ISBN-13: 9781441932914

This ebook comprises contributions to the 172. WE-Heraeus-Seminar “Atoms and Molecules in robust exterior Fields,” which happened April 7–11 1997 on the Phys- zentrum undesirable Honnef (Germany). The designation “strong fields” applies to exterior static magnetic, and/or electrical fields which are sufficiently excessive to reason changes within the atomic or molecular str- ture and dynamics. the categorical subject matters taken care of are the habit and homes of atoms in robust static fields, the basic elements and digital constitution of molecules in powerful magnetic fields, the dynamics and elements of chaos in hugely excited R- berg atoms in exterior fields, topic within the surroundings of astrophysical gadgets (white dwarfs, neutron stars), and quantum nanostructures in robust magnetic fields. it really is visible that the elaboration of the corresponding homes in those regimes explanations the best problems, and is incomplete even this present day. Present-day expertise has made it attainable for lots of learn teams to check the habit of topic in powerful exterior fields, either experimentally and theore- cally, the place the word “experimentally” contains the astronomical observations. - derstanding those platforms calls for the advance of contemporary theories and strong computational innovations. Interdisciplinary collaborations can be worthwhile and necessary in constructing extra effective the way to comprehend those vital structures. as a result the assumption used to be to compile humans from diversified fields like atomic and molecular physics, theoretical chemistry, astrophysics and all these colleagues attracted to elements of few-body structures in exterior fields.

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Phys. B 27:5065 30 THE SPECTRUM OF ATOMIC HYDROGEN IN MAGNETIC AND ELECTRIC FIELDS OF WHITE DWARF STARS Peter 1 2 and Wolfgang Schweizer1,2 Institut für Astronomie und Astrophysik Abteilung Theoretische Astrophysik Universität Tübingen 72076 Tübingen, Germany Fakultät für Physik und Astronomie Theoretische Physik I Ruhr-Universität Bochum 44780 Bochum, Germany INTRODUCTION Despite its long history, the problem of a hydrogen atom in external magnetic and electric fields is still of significant interest.

R. , 1970, Astrophys. J. 161:L77. Lang, K. , 1980, ”Astrophysical Formulae,” Springer, Berlin. Melezhik, V. , 1993, Three-dimensional hydrogen atom in crossed magnetic and electric fields, Phys. Rev. A 48:4528. Melezhik, V. , 1997, A computational method for quantum dynamics of a three-dimensional atom in strong fields, these proceedings. Naudeau, M. , Sukenik, C. , and Bucksbaum, P. , 1997, Core-scattering of Stark wavepackets, Phys. Rev. A submitted. Pavlov-Verevkin, V. , and Zhilinskii, B. , 1980, Neutral hydrogen-like system in a magnetic field, Phys.

By selecting a particular value of the electric field strength, they could control the structure of the recurrence spectra and enhance the interaction of the wavepacket with the cesium core. The laser spectrum was windowed so that only very few states around are excited, thereby minimizing dispersion of the wavepacket. In this section, we present a realistic numerical treatment of the problem by simulating the time evolution of Rydberg wavepackets 34 through direct solution of the time dependent Schrödinger equation on a spatial grid.

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Atoms and Molecules in Strong External Fields by P. Schmelcher, W. Schweizer

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