Science : Quantum Theory

Standard textbooks on the many-body problem do not include a wealth of valuable experimental data, in particular recent results from direct knockout reactions, which are directly related to the single-particle propagator in many-body theory. In this indispensable book, the comparison with experimental data is incorporated from the start, making the abstract concept of propagators vivid and comprehensible. The discussion of numerical calculations using propagators or Green's functions, also absent from current textbooks, is presented in this book. Much of the material has been tested in the classroom and the introductory chapters allow a seamless connection with a one-year graduate course in quantum mechanics. While the majority of books on many-body theory deal with the subject from the viewpoint of condensed matter physics, this book also emphasizes finite systems and should be of considerable interest to researchers in nuclear, atomic, and molecular physics. A unified treatment of many different many-body systems is presented using the approach of self-consistent Green's functions. Several topics, not available in other books, in particular the description of atomic Bose–Einstein condensates, have been included. The coverage proceeds in a systematic way from elementary concepts, such as second quantization and mean-field properties, to a more advanced but self-contained presentation of the physics of atoms, molecules, nuclei, nuclear and neutron matter, electron gas, quantum liquids, atomic Bose–Einstein and fermion condensates, and pairing correlations in finite and infinite systems. more...

Price: $109.20

Focuses on the problem of consciousness. This book explains how quantum mechanics allows causally effective conscious thought to be combined in a natural way with the physical brain made of neurons and atoms. more...

Price: $89.95

Quantum field theory has undergone extraordinary developments in the last few decades and permeates many branches of modern research such as particle physics, cosmology, condensed matter, statistical mechanics and critical phenomena. This book introduces the reader to the modern developments in a manner which assumes no previous knowledge of quantum field theory, and makes it readily accessible from the advanced undergraduate level upwards. - ;The importance and the beauty of modern quantum field theory resides in the power and variety of its methods and ideas, which find application in domains as different as particle physics, cosmology, condensed matter, statistical mechanics and critical phenomena. This book introduces the reader to the modern developments, assuming no previous knowledge of quantum field theory. Along with standard topics like Feynman diagrams, the book discusses effective lagrangians, renormalization. group equations, the path integral formulation, spontaneous symmetry breaking and non-abelian gauge theories. The inclusion of more advanced topics will also make this a most useful book for graduate students and researchers. - ;The author gives a nice conceptual discussion of divergences in loop amplitudes, the need to renormalize, and how both renormalization group...he manages to convery the main ideas without getting lost in technical details. - Physics Today;All in all, Maggiore's approach is precisely the one that should be taken in an undergraduate course: Introduce the "big" ideas and leave the computational and thornier technical details for subsequent courses. - Physics Today;A Modern Introduction to Quantum Field Theory provides useful information. Books in the Oxford Master Series in Statistical, Computational and Theoretical Physics are aimed at final-year undergraduate and begining postgraduate students, providing straightforward introduction to key topics in physics. This book satifies these goals very well. - The Times more...

Price: $70.00

The use of quantum chemistry for the quantitative prediction of molecular properties has long been frustrated by the technical difficulty of carrying out the needed computations. In the last decade there have been substantial advances in the formalism and computer hardware needed to carry out accurate calculations of molecular properties efficiently. These advances have been sufficient to make quantum chemical calculations a reliable tool for the quantitative interpretation of chemical phenomena and a guide to laboratory experiments. However, the success of these recent developments in computational quantum chemistry is not well known outside the community of practitioners. In order to make the larger community of chemical physicists aware of the current state of the subject, this self-contained volume of Advances in Chemical Physics surveys a number of the recent accomplishments in computational quantum chemistry. This stand-alone work presents the cutting edge of research in computational quantum mechanics. Supplemented with more than 150 illustrations, it provides evaluations of a broad range of methods, including:. * Quantum Monte Carlo methods in chemistry. * Monte Carlo methods for real-time path integration. * The Redfield equation in condensed-phase quantum dynamics. * Path-integral centroid methods in quantum statistical mechanics and dynamics. * Multiconfigurational perturbation theory-applications in electronic spectroscopy. * Electronic structure calculations for molecules containing transition metals. * And more. Contributors to New Methods in Computational Quantum Mechanics. KERSTIN ANDERSSON, Department of Theoretical Chemistry, Chemical Center, Sweden. DAVID M. CEPERLEY, National Center for Supercomputing Applications and Department of Physics, University of Illinois at Urbana-Champaign, Illinois. MICHAEL A. COLLINS, Research School of Chemistry, Australian National University, Canberra, Australia. REINHOLD EGGER, Fakultät für P more...

Price: $365.00

This book reviews some of the classic aspects in the theory of phase transitions and critical phenomena, which has a long history. Recently, these aspects are attracting much attention due to essential new contributions. The topics presented in this book include: mathematical theory of the Ising model; equilibrium and non-equilibrium criticality of one-dimensional quantum spin chains; influence of structural disorder on the critical behaviour of the Potts model; criticality, fractality and multifractality of linked polymers; field-theoretical approaches in the superconducting phase transitions. more...

Price: $100.10