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Unique in scope and treatment, Theory of Atomic Nuclei, Quasi-particle and Phonons gives a microscopic description of the structure of complex nuclei at low and intermediate excitation energies in terms of quasi-particle and phonon operators. A substantial quantity of modern experimental data is collected together and incorporated into the book to complement the theoretical treatment. This source book is an extremely useful research reference of the results of experimental work in the area.
Unique in scope and treatment, Theory of Atomic Nuclei, Quasi-particle and Phonons gives a microscopic description of the structure of complex nuclei at low and intermediate excitation energies in terms of quasi-particle and phonon operators. A substantial quantity of modern experimental data is collected together and incorporated into the book to complement the theoretical treatment. This source book is an extremely useful research reference of the results of experimental work in the area.
Professor Vadim Soloviev, an outstanding Russian nuclear theorist, was the founder of the Dubna school of nuclear structure. This volume commemorates his important contribution to nuclear physics. The subjects include: (1) traditional low-energy nuclear structure; (2) nuclear structure at extremes of excitation energy, angular momentum, isospin and mass; (3) nucleus-nucleus collisions and phase transitions in nuclear matter; (4) related subjects.
Professor Vadim Soloviev, an outstanding Russian nuclear theorist, was the founder of the Dubna school of nuclear structure. This volume commemorates his important contribution to nuclear physics. The subjects include: (1) traditional low-energy nuclear structure; (2) nuclear structure at extremes of excitation energy, angular momentum, isospin and mass; (3) nucleus-nucleus collisions and phase transitions in nuclear matter; (4) related subjects.
The thesis presents experimental and theoretical results about the surface dynamics and the surface Dirac fermion (DF) spectral function of the strong topological insulators Bi2Te3 and Bi2Se3. The experimental results reveal the presence of a strong Kohn anomaly in the measured surface phonon dispersion of a low-lying optical mode, and the absence of surface Rayleigh acoustic phonons. Fitting the experimental data to theoretical models employing phonon Matsubara functions allowed the extraction of the matrix elements of the coupling Hamiltonian and the modifications to the surface phonon propagator that are encoded in the phonon self-energy. This allowed, for the first time, calculation of phonon mode-specific DF coupling λν(q) from experimental data, with average coupling significantly higher than typical values for metals, underscoring the strong coupling between optical surface phonons and surface DFs in topological insulators. Finally, to connect to experimental results obtained from photoemission spectroscopies, an electronic (DF) Matsubara function was constructed using the determined electron-phonon matrix elements and the optical phonon dispersion. This allowed calculation of the DF spectral function and density of states, allowing for comparison with photoemission and scanning tunneling spectroscopies. The results set the necessary energy resolution and extraction methodology for calculating λ from the DF perspective.
Quantum mechanics is the set of laws of physics which, to the best of our knowledge, provides a complete account of the microworld. One of its chap ters, quantum electrodynamics (QED), is able to account for the quantal phenomena of relevance to daily life (electricity, light, liquids and solids, etc.) with great accuracy. The language of QED, field theory, has proved to be uni versal providing the theoretical basis to describe the behaviour of many-body systems. In particular finite many-body systems (FMBS) like atomic nuclei, metal clusters, fullerenes, atomic wires, etc. That is, systems made out of a small number of components. The properties of FMBS are expected to be quite different from those of bulk matter, being strongly conditioned by quantal size effects and by the dynamical properties of the surface of these systems. The study of the elec tronic and of the collective behaviour (plasmons and phonons) of FMBS and of their interweaving, making use of well established first principle quantum (field theoretical) techniques, is the main subject of the present monograph. The interest for the study of FMBS was clearly stated by Feynman in his address to the American Physical Society with the title "There is plenty of room at the bottom". On this occasion he said among other things: "When we get to the very, very small world - say circuits of seven atoms - we have a lot of new things that would happen that represent completely new opportunities for design" [1].
This advanced textbook presents an extensive and diverse study of low-energy nuclear physics considering the nucleus as a quantum system of strongly interacting constituents. The contents guide students from the basic facts and ideas to more modern topics including important developments over the last 20 years, resulting in a comprehensive collection of major modern-day nuclear models otherwise unavailable in the current literature. The book emphasizes the common features of the nucleus and other many-body mesoscopic systems currently in the center of interest in physics. The authors have also included full problem sets that can be selected by lecturers and adjusted to specific interests for more advanced students, with many chapters containing links to freely available computer code. As a result, readers are equipped for scientific work in mesoscopic physics.