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Threshold Resonances In Atomic Three Body Systems
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Book Synopsis Threshold Resonances in Atomic Three-body Systems by : Daniel Cipriano Diaz
Download or read book Threshold Resonances in Atomic Three-body Systems written by Daniel Cipriano Diaz and published by . This book was released on 2016 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: New calculations of the narrow-width and threshold resonances were completed which support the appearance of the threshold resonances in the e - Ps system. The threshold resonances were observed lining up at the first, second, and third two-body thresholds, a trend that is assumed to continue at even higher energies. Calculations were carried out for both the 1S and 3S states. After successfully making calculations of the e - Ps system resonant states, calculations were also carried out for the electron-Hydrogen (e- ) 1S and 3S resonances. The calculations for the e - H system were carried out for the threshold resonances emerging from the 1st threshold. Additionally, we propose an explanation for the emergence of the threshold resonances.
Book Synopsis Resonances in Few-Body Systems by : A.T. Kruppa
Download or read book Resonances in Few-Body Systems written by A.T. Kruppa and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Few-body resonances are in the frontiers of resonance studies. Very similar problems occur in atomic and molecular physics, nuclear physics and high-energy physics. This collection presents the state of the art of the studies of resonance states in these fields and demonstrates their common methodological aspects. Most of the contributions are theoretical, but quite a few are closely linked with experiments through the data they are dealing with.
Book Synopsis Expanding Frontier Of Atomic Physics, The - Proceedings Of The Xviii International Conference On Atomic Physics by : Hossein R Sadeghpour
Download or read book Expanding Frontier Of Atomic Physics, The - Proceedings Of The Xviii International Conference On Atomic Physics written by Hossein R Sadeghpour and published by World Scientific. This book was released on 2003-04-29 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: This important proceedings volume highlights the major scientific achievement of the last decade in atomic physics, namely the creation of the gaseous Bose-Einstein condensate, which was featured prominently at the XVIII International Conference on Atomic Physics (ICAP2002). Two recipients of the 2001 Nobel Prize delivered lectures at the meeting. Among the topics discussed were novel processes leading to degenerate Fermi gases in atom traps, creation of cold molecules, condensates in optical lattices, atoms in intense fields, tests of fundamental symmetries, quantum control and information, time and frequency standards.
Book Synopsis The J-Matrix Method by : Abdulaziz D. Alhaidari
Download or read book The J-Matrix Method written by Abdulaziz D. Alhaidari and published by Springer Science & Business Media. This book was released on 2008-03-20 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although introduced30 years ago, the J-matrix method has witnessed a resurgence of interest in the last few years. In fact, the interest never ceased, as some authors have found in this method an effective way of handling the continuous spectrum of scattering operators, in addition to other operators. The motivation behind the introduction of the J-matrix method will be presented in brief. The introduction of fast computing machines enabled theorists to perform cal- lations, although approximate, in a conveniently short period of time. This made it possible to study varied scenarios and models, and the effects that different possible parameters have on the ?nal results of such calculations. The ?rst area of research that bene?ted from this opportunity was the structural calculation of atomic and nuclear systems. The Hamiltonian element of the system was set up as a matrix in a convenient, ?nite, bound-state-like basis. A matrix of larger size resulted in a better con?guration interaction matrix that was subsequently diagonalized. The discrete energy eigenvalues thus obtained approximated the spectrum of the system, while the eigenfunctions approximated the wave function of the resulting discrete state. Structural theorists were delighted because they were able to obtain very accurate values for the lowest energy states of interest.
Book Synopsis R-Matrix Theory of Atomic Collisions by : Philip George Burke
Download or read book R-Matrix Theory of Atomic Collisions written by Philip George Burke and published by Springer Science & Business Media. This book was released on 2011-03-28 with total page 750 pages. Available in PDF, EPUB and Kindle. Book excerpt: Commencing with a self-contained overview of atomic collision theory, this monograph presents recent developments of R-matrix theory and its applications to a wide-range of atomic molecular and optical processes. These developments include the electron and photon collisions with atoms, ions and molecules which are required in the analysis of laboratory and astrophysical plasmas, multiphoton processes required in the analysis of superintense laser interactions with atoms and molecules and positron collisions with atoms and molecules required in antimatter studies of scientific and technologial importance. Basic mathematical results and general and widely used R-matrix computer programs are summarized in the appendices.
Book Synopsis Threshold Resonances in Electron-hydrogen Like Systems by : Enrique Hurtado
Download or read book Threshold Resonances in Electron-hydrogen Like Systems written by Enrique Hurtado and published by . This book was released on 2019 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Generally the three body problems are done with the incident particle being a charged particle, while the target is a neutral atom. An example of this is the Electron-Positronium (e-Ps) system. It's extensively researched and verified both theoretically and experimentally. Highly verifiable results make it an ideal candidate for comparing known results with those of a new method for solving three body resonances.
Book Synopsis Ultracold Atomic Physics by : Hui Zhai
Download or read book Ultracold Atomic Physics written by Hui Zhai and published by Cambridge University Press. This book was released on 2021-02-25 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of ultracold atomic physics has developed rapidly during the last two decades, and currently encompasses a broad range of topics in physics, with a variety of important applications in topics ranging from quantum computing and simulation to quantum metrology, and can be used to probe fundamental many-body effects such as superconductivity and superfluidity. Beginning with the underlying and including the most cutting-edge experimental developments, this textbook covers essential topics such as Bose-Einstein condensation of alkali atoms, studies of BEC-BCS crossover in degenerate Fermi gas, synthetic gauge fields and Hubbard models, and many-body localization and dynamical gauge fields. Key physical concepts, such as symmetry and universality highlight the connections between different systems, and theory is developed with plain derivations supported by experimental results. This self-contained and modern text will be invaluable for researchers, graduate students and advanced undergraduates studying cold atom physics, from both a theoretical and experimental perspective.
Book Synopsis Theory of Resonances by : V.I. Kukulin
Download or read book Theory of Resonances written by V.I. Kukulin and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Atomic And Molecular Physics - Proceedings Of The 3rd Us/mexico Symposium by : C Cisneros
Download or read book Atomic And Molecular Physics - Proceedings Of The 3rd Us/mexico Symposium written by C Cisneros and published by World Scientific. This book was released on 1991-12-31 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Third US/Mexico Symposium on Atomic and Molecular Physics brought together forty-five leading investigators in many fields. Both theory and experiment were well represented. The papers in this volume are based on the participants' invited talks at the symposium and represent an important collection reviewing the most up-to-date work in the different fields. The diversity of research areas represented, coupled to a common local point, revealed different perspectives on such questions as: How do particles depend on one another? Correlation provides a good starting point, but are there other useful conceptual approaches which will yield a new view of the phenomena and a more complete understanding?The contributions in this volume provide different perspectives and bring together a collection of papers which serve as a basis for further progress in this field.
Book Synopsis Atomic And Molecular Physics - Proceedings Of The Fourth Us/mexico Symposium by : Thomas J Morgan
Download or read book Atomic And Molecular Physics - Proceedings Of The Fourth Us/mexico Symposium written by Thomas J Morgan and published by World Scientific. This book was released on 1995-09-30 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: This meeting continues the series tradition of previous meetings by focussing on the recent changes in our understanding of the behaviour of atomic and molecular few body systems. The diversity of research areas represented at the meeting coupled to a common focal point, reveals different perspective on basic questions of interest, and exposes new conceptual approachs to the dynamics of few body problems. Special emphasis on topics such as collisional behaviour, threshold phenomena, recombination and photoionizations provides a broad overview of the field.
Download or read book Physics of Atomic Nuclei written by and published by . This book was released on 2000 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Threshold Resonance Effects and the Phase-Amplitude Approach by : Di Shu
Download or read book Threshold Resonance Effects and the Phase-Amplitude Approach written by Di Shu and published by . This book was released on 2018 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: A fundamental aspect of scattering is the appearance of resonances, which appear in many systems. Although their effect is often lost due to averaging at room temperatures or higher, they can become dominant features at low or ultralow temperatures, where only a few partial waves contribute to the scattering process. Our ability to form and manipulate ultracold molecules provides the seed to study in a precise and controlled fashion the role of single partial waves, and state-to-state processes in chemical systems. We explore resonances occurring due to the existence of a quasi-bound state in the entrance channel of a scattering system and explain the energy scaling due to these near threshold resonances (NTR) based on the properties of the Jost functions. We also investigate the threshold resonance effects in the Efimov systems which have been studied in a variety of context, such as three-body Coulomb systems and nuclear three-body systems. Numerical schemes based on Milne's phase-amplitude approach are formulated to analyze NTR effects. We present a simple and practical approach to solve the long-standing problem of finding the non-oscillatory solution to Milne's equation. Our numerical approach also gives an integral representation of scattering phase shift and allows us to compute ultra-narrow shape resonances.
Book Synopsis Heteronuclear Efimov Scenario in Ultracold Quantum Gases by : Juris Ulmanis
Download or read book Heteronuclear Efimov Scenario in Ultracold Quantum Gases written by Juris Ulmanis and published by Springer. This book was released on 2017-03-07 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis represents a decisive breakthrough in our understanding of the physics of universal quantum-mechanical three-body systems. The Efimov scenario is a prime example of how fundamental few-body physics features universally across seemingly disparate fields of modern quantum physics. Initially postulated for nuclear physics more than 40 years ago, the Efimov effect has now become a new research paradigm not only in ultracold atomic gases but also in molecular, biological and condensed matter systems. Despite a lot of effort since its first observations, the scaling behavior, which is a hallmark property and often referred to as the “holy grail” of Efimov physics, remained hidden until recently. In this work, the author demonstrates this behavior for the first time for a heteronuclear mixture of ultracold Li and Cs atoms, and pioneers the experimental understanding of microscopic, non-universal properties in such systems. Based on the application of Born-Oppenheimer approximation, well known from molecular physics textbooks, an exceptionally clear and intuitive picture of heteronuclear Efimov physics is revealed.
Book Synopsis Advances in Atomic, Molecular, and Optical Physics by :
Download or read book Advances in Atomic, Molecular, and Optical Physics written by and published by Academic Press. This book was released on 2013-07-23 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Atomic, Molecular, and Optical Physics publishes reviews of recent developments in a field that is in a state of rapid growth, as new experimental and theoretical techniques are used on many old and new problems. Topics covered include related applied areas, such as atmospheric science, astrophysics, surface physics and laser physics. Articles are written by distinguished experts and contain relevant review material and detailed descriptions of important recent developments. International experts Comprehensive articles New developments
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976 with total page 934 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Atomic, Molecular, and Optical Science by : National Research Council
Download or read book Atomic, Molecular, and Optical Science written by National Research Council and published by National Academies Press. This book was released on 1994-02-01 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book responds to the call for a clear description of the role of basic science in meeting societal needs. It gives examples of societal benefits of atomic, molecular, and optical (AMO) science in a number of key areas, including industrial technology, information technology, energy, global change, defense, health and medical technology, space technology, and transportation. This volume highlights the role of lasers in trapping, cooling, and manipulating individual atoms and molecules to make possible ultraprecise atomic clocks, structural engineering at the atomic level (nanotechnology), and new approaches to the study of deoxyribonucleic acid (DNA). AMO science is shown to be a field that is both an intellectually important basic science and a powerful enabling science that supports many other areas of science and technology.
Book Synopsis Few Body Dynamics, Efimov Effect and Halo Nuclei by : Vidya Sagar Bhasin
Download or read book Few Body Dynamics, Efimov Effect and Halo Nuclei written by Vidya Sagar Bhasin and published by Springer Nature. This book was released on 2020-12-20 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents an overview of the different few-body techniques developed in nuclear physics and their applications to explore the structural properties of neutron-rich unstable nuclei, the so-called halo nuclei. Formal theory of two- and three-body scattering are discussed in a compact and abridged form to initiate the beginners who want to investigate the problems of halo nuclei within the framework of three-body models. Readers gain in-depth knowledge about the methods involved to solve the two- and three-body scattering problem and a special focus is put on the Faddeev approach. In this sense, the authors address both the graduate students and senior researchers. Subsequently, a detailed analysis of the Efimov effect in three-body systems is presented and the search for the effect in atomic nuclei, both Borromean and non-Borromean is addressed. The book also presents a detailed account of how to analyze, within the framework of a 3-body approach and using realistic short range forces, the structural properties of halo nuclei. Finally, the authors discuss the recent progress in effective field theory by setting up the integral equations for 3-body scattering and applying it to study low energy scattering of neutrons off halo nuclear targets.
