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Introduction Numerique Aux Diagonalisations Exactes Et Au Dmrg
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Book Synopsis Introduction Numérique Aux Diagonalisations Exactes Et Au DMRG by : Jean-Marc Robin
Download or read book Introduction Numérique Aux Diagonalisations Exactes Et Au DMRG written by Jean-Marc Robin and published by Lulu.com. This book was released on 2008-10-12 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ce livre est une introduction pragmatique au DMRG: comment faire un programme numérique à partir des idées de White. Nous utilisons le modèle de Heisenberg pour une chaîne de spins 1/2 antiferromagnétiques. Nous introduisons pas à pas la construction des matrices, la méthode du Lanczos, et la méthode DMRG.
Book Synopsis Conformal Invariance and Critical Phenomena by : Malte Henkel
Download or read book Conformal Invariance and Critical Phenomena written by Malte Henkel and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: Critical phenomena arise in a wide variety of physical systems. Classi cal examples are the liquid-vapour critical point or the paramagnetic ferromagnetic transition. Further examples include multicomponent fluids and alloys, superfluids, superconductors, polymers and fully developed tur bulence and may even extend to the quark-gluon plasma and the early uni verse as a whole. Early theoretical investigators tried to reduce the problem to a very small number of degrees of freedom, such as the van der Waals equation and mean field approximations, culminating in Landau's general theory of critical phenomena. Nowadays, it is understood that the common ground for all these phenomena lies in the presence of strong fluctuations of infinitely many coupled variables. This was made explicit first through the exact solution of the two-dimensional Ising model by Onsager. Systematic subsequent developments have been leading to the scaling theories of critical phenomena and the renormalization group which allow a precise description of the close neighborhood of the critical point, often in good agreement with experiments. In contrast to the general understanding a century ago, the presence of fluctuations on all length scales at a critical point is emphasized today. This can be briefly summarized by saying that at a critical point a system is scale invariant. In addition, conformal invaTiance permits also a non-uniform, local rescal ing, provided only that angles remain unchanged.
Book Synopsis Condensed Matter Physics and Exactly Soluble Models by : Elliott H. Lieb
Download or read book Condensed Matter Physics and Exactly Soluble Models written by Elliott H. Lieb and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 645 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the third Selecta of publications of Elliott Lieb, the first two being Stabil ity of Matter: From Atoms to Stars, edited by Walter Thirring, and Inequalities, edited by Michael Loss and Mary Beth Ruskai. A companion fourth Selecta on Statistical Mechanics is also edited by us. Elliott Lieb has been a pioneer of the discipline of mathematical physics as it is nowadays understood and continues to lead several of its most active directions today. For the first part of this selecta we have made a selection of Lieb's works on Condensed Matter Physics. The impact of Lieb's work in mathematical con densed matter physics is unrivaled. It is fair to say that if one were to name a founding father of the field, Elliott Lieb would be the only candidate to claim this singular position. While in related fields, such as Statistical Mechanics and Atomic Physics, many key problems are readily formulated in unambiguous mathematical form, this is less so in Condensed Matter Physics, where some say that rigor is "probably impossible and certainly unnecessary". By carefully select ing the most important questions and formulating them as well-defined mathemat ical problems, and then solving a good number of them, Lieb has demonstrated the quoted opinion to be erroneous on both counts. What is true, however, is that many of these problems turn out to be very hard. It is not unusual that they take a decade (even several decades) to solve.
Book Synopsis Quantum Theory and Beyond by : Ted Bastin
Download or read book Quantum Theory and Beyond written by Ted Bastin and published by Cambridge University Press. This book was released on 1971-04-02 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quantum theory attempts to describe the discrete or atomic nature of matter and the physical world. Certain paradoxes connected with the use of our familiar ideas of the theory have led some physicists to suggest that a revision of quantum theory at its most fundamental level is now inevitable, while others think that the wide range of experimental success of the theory make such changes literally unthinkable. This book contains the edited papers presented at a small informal colloquium held in Cambridge in 1968 to discuss the need for fundamental revision in quantum theory. Most schools of thought on the foundations of the theory were represented, and to direct discussion some participants proposed actual changes. A principal aim was to pinpoint the source of difficulty in current ideas of the time or, failing that, to present alongside each other the various viewpoints about them.
Book Synopsis Combinatorial Mathematics and Its Applications by : D. J. A. Welsh
Download or read book Combinatorial Mathematics and Its Applications written by D. J. A. Welsh and published by . This book was released on 1969 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 2018 IEEE Information Theory Workshop (ITW) by : IEEE Staff
Download or read book 2018 IEEE Information Theory Workshop (ITW) written by IEEE Staff and published by . This book was released on 2018-11-25 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Original papers on Information and Coding Theory are encouraged for submission The scope of submission includes, but is not limited to Information Theory and its Applications Frontiers of Coding Theory and Practice Boundaries between Information Theory and Data Science, Biology and Signal Processing Network Information Theory Network Coding and Distributed Storage Information Theoretic Security
