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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 22
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Book Description
The goal of this work has been the theoretical analysis of dynamics from highly excited vibrational spectra of polyatomic molecules, especially, of molecules with classically chaotic dynamics. The excitation ranges of these spectra of highly excited molecules present fundamental new problems of spectral analysis which must first be overcome. We have sought to lay the foundation for a comprehensive new framework for analyzing spectra in which the dynamics are complicated by strongly interacting degrees of freedom. Ideally, this framework will allow for high energy unassignable spectra the kind of detailed level-by- level analysis customary at lower energy. To be really successful, we believe this scheme must be founded in a systematic understanding of the complex underlying classical dynamics of the molecule.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 22
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Book Description
The goal of this work has been the theoretical analysis of dynamics from highly excited vibrational spectra of polyatomic molecules, especially, of molecules with classically chaotic dynamics. The excitation ranges of these spectra of highly excited molecules present fundamental new problems of spectral analysis which must first be overcome. We have sought to lay the foundation for a comprehensive new framework for analyzing spectra in which the dynamics are complicated by strongly interacting degrees of freedom. Ideally, this framework will allow for high energy unassignable spectra the kind of detailed level-by- level analysis customary at lower energy. To be really successful, we believe this scheme must be founded in a systematic understanding of the complex underlying classical dynamics of the molecule.
Author: Ron Naaman
Publisher: Springer Science & Business Media
ISBN: 1468474243
Category : Technology & Engineering
Languages : en
Pages : 338
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Book Description
The workshop on "The structure of small molecules and ions" was held at the Neve-Han guest house, near Jerusalem, Israel on December 13 to 18 in mem ory of the late Professor Itzhak Plesser. Professor Plesser played a central role in the research done both at the Weizmann Institute and at Argonne National Laboratories on the "Coulomb explosion" method. His friends honored his memory by organizing a meeting in which subjects related to Plesser's interests would be discussed. Just a week be fore the conference started we were struck by another tragedy -the death of our graduate student Ms. Hana Kovner, who participated in many of the Coulomb explosion experiments at the Weizmann Institute. We would like to dedicate these proceedings to her memory as well. The goal of the workshop was to bring together chemists and physicists working on different aspects of the structural problems of small molecular en tities. The time seemed appropriate for discussing experimental and theoretical concepts, since in recent years new methods have been introduced, and a large amount of information has been accumulated on systems not studied before, like unstable molecules, ions, van der Waals molecules and clusters. The program of the workshop reflects, we believe, these new developments. The meeting was characterized by intensive discussions in which the weak nesses and strengths of new and of well established concepts were revealed. We hope that it measured up to the high standards Itzhak Plesser maintained all through his scientific life.
Author: Hai-Lung Dai
Publisher: World Scientific
ISBN: 9789810221119
Category : Science
Languages : en
Pages : 1148
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Book Description
Since the first stimulated emission pumping (SEP) experiments more than a decade ago, this technique has proven powerful for studying vibrationally excited molecules. SEP is now widely used by increasing numbers of research groups to investigate fundamental problems in spectroscopy, intramolecular dynamics, intermolecular interactions, and even reactions. SEP provides rotationally pre-selected spectra of vibrationally highly excited molecules undergoing large amplitude motions. A unique feature of SEP is the ability to access systematically a wide variety of extreme excitations localized in various parts of a molecule, and to prepare populations in specific, high vibrational levels. SEP has made it possible to ask and answer specific questions about intramolecular vibrational redistribution and the role of vibrational excitation in chemical reactions.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 284
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Author: Jean-Claude Gay
Publisher: CRC Press
ISBN: 9782881244827
Category : Atoms
Languages : en
Pages : 386
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Book Description
Deals with the study of irregular behavior in few-body systems, with emphasis on the aspects of atomic physics. Areas covered include the atom in a magnetic field, microwave ionization of Rydberg atoms, and quasi-Wigner crystals in ion traps. All but one of the papers first appeared in volume 25 of the journal Comments on atomic and molecular physics. No index. Annotation copyrighted by Book News, Inc., Portland, OR
Author: G. Casati
Publisher: Elsevier
ISBN: 1483290328
Category : Science
Languages : en
Pages : 437
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Book Description
The study of quantum systems which are chaotic in the classical limit (quantum chaos or quantum chaology) is a very new field of research. Not long ago, it was still considered as an esoteric subject, however this attitude changed radically when it was realized that this subject is relevant to many of the more mature branches of physics. This book presents the accumulated knowledge available up until now and at the same time introduces topics which are being intensively studied at present. Their relevance to other fields such as condensed matter, atomic and nuclear physics is also discussed. The lectures have been divided into two rough categories - background and advanced lectures.
Author:
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ISBN:
Category :
Languages : en
Pages :
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Book Description
Nonlinear dynamics is applied to chaotic unassignable atomic and molecular spectra with the aim of extracting detailed information about regular dynamic motions that exist over short intervals of time. It is shown how this motion can be extracted from high resolution spectra by doing low resolution studies or by Fourier transforming limited regions of the spectrum. These motions mimic those of periodic orbits (PO) and are inserts into the dominant chaotic motion. Considering these inserts and the PO as a dynamically decoupled region of space, resonant scattering theory and stabilization methods enable us to compute ladders of resonant states which interact with the chaotic quasi-continuum computed in principle from basis sets placed off the PO. The interaction of the resonances with the quasicontinuum explains the low resolution spectra seen in such experiments. It also allows one to associate low resolution features with a particular PO. The motion on the PO thereby supplies the molecular movements whose quantization causes the low resolution spectra. Characteristic properties of the periodic orbit based resonances are discussed. The method is illustrated on the photoabsorption spectrum of the hydrogen atom in a strong magnetic field and on the photodissociation spectrum of H3. Other molecular systems which are currently under investigation using this formalism are also mentioned. 53 refs., 10 figs., 2 tabs.
Author: Martin C. Gutzwiller
Publisher: Springer Science & Business Media
ISBN: 1461209838
Category : Mathematics
Languages : en
Pages : 445
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Book Description
Describes the chaos apparent in simple mechanical systems with the goal of elucidating the connections between classical and quantum mechanics. It develops the relevant ideas of the last two decades via geometric intuition rather than algebraic manipulation. The historical and cultural background against which these scientific developments have occurred is depicted, and realistic examples are discussed in detail. This book enables entry-level graduate students to tackle fresh problems in this rich field.
Author:
Publisher: Elsevier
ISBN: 0080561454
Category : Science
Languages : en
Pages : 523
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Book Description
Established in 1965, Advances in Atomic, Molecular, and Optical Physics continues its tradition of excellence with Volume 34. The latest volume includes nine reviews of topics related to the applications of atomic and molecular physics to atmospheric physics and astrophysics.
Author: United States. Air Force. Directorate of Chemical and Atmospheric Sciences
Publisher:
ISBN:
Category : Atmospheric chemistry
Languages : en
Pages : 378
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Book Description
