A Quantum Legacy

Popular science writer (and former physics professor) Parker presents a portrait of the scientists who developed the theory of quantum mechanics and explains the basic conceptual outlines of the theory. The mathematics of quantum theory are almost completely avoided. Annotation copyrighted by Book News, Inc., Portland, OR

Julian Schwinger (1918-94) contributed to a broad range of topics in theoretical physics, from classical electrodynamics to quantum mechanics. This volume includes many of his most important papers.

Julian Schwinger (1918–1994) was one of the giants of 20th Century science. He contributed to a broad range of topics in theoretical physics, ranging from classical electrodynamics to quantum mechanics, from nuclear physics through quantum electrodynamics to the general theory of quantum fields. Although his mathematical prowess was legendary, he was fundamentally a phenomenologist. He received many awards, including the first Einstein Prize in 1951, and the Nobel Prize in 1965, which he shared with Richard Feynman and Sin-itiro Tomonaga for the self-consistent formulation of quantum electrodynamics into a practical theory. His more than 70 doctoral students have played a decisive role in the development of science in the second half of this century. This important volume includes many of Schwinger's most important papers, on the above and other topics, such as the theory of angular momentum and the theory of many-body systems. The papers collected here continue to underlie much of the work done by theoretical physicists today. Contents:Quantum ElectrodynamicsSpin and Angular MomentumNuclear PhysicsClassical Electrodynamics, Diffraction, and Synchrotron RadiationQuantum Field TheoryMany Body TheoryQuantum MechanicsImportance of ResearchMagnetic ChargeSource TheoryDeep Inelastic ScatteringCasimir EffectSupersymmetryStatistical Atom Readership: Theoretical physicists, mathematicians and historians of science. Keywords:Spin and Angular Momentum;Nuclear Physics;Microwave Radiation;Synchrotron Radiation;Electrodynamics;Quantum Electrodynamics;Renormalization Theory;Quantum Field Theory;Quantum Mechanics;Many-Body Theory;Magnetic Charge;Casimir Effect;Source TheoryReviews: “Overall the presentation is excellent: the introductions bring Schwinger's work to life.” Mathematics Abstracts “… it is hard to imagine what physics would be like at the end of the millennium without the contributions of Julian Schwinger, a private man but a great scientist and a superb teacher with dozens of the now best established theoretical physicists among his students, including three Nobel laureates …” CERN Courier “Schwinger's work was independent, brilliant and often very original.” Mathematical Reviews

"Physicists have grappled with quantum theory for over a century. They have learned to wring precise answers from the theory's governing equations, and no experiment to date has found compelling evidence to contradict it. Even so, the conceptual apparatus remains stubbornly, famously bizarre. Physicists have tackled these conceptual uncertainties while navigating still larger ones: the rise of fascism, cataclysmic world wars and a new nuclear age, an unsteady Cold War stand-off and its unexpected end. Quantum Legacies introduces readers to physics' still-unfolding quest by treating iconic moments of discovery and debate among well-known figures like Albert Einstein, Erwin Schrèodinger, and Stephen Hawking, and many others whose contributions have indelibly shaped our understanding of nature"--

Quantum Macroeconomics presents a new paradigm in macroeconomic analysis initiated by Bernard Schmitt. It explains the historical origin, the analytical contents, and the actual relevance of this new paradigm, with respect to current major economic issues at national and international level. These issues concern both advanced and emerging market economies, referring to inflation, unemployment, financial instability, and economic crises. In the first part of this volume, leading scholars explain the historical origin and analytical content of quantum macroeconomics. The second part explores its relevance with respect to the current major economic issues such as the sovereign debt crisis and European monetary union. The volume also features two previously unpublished papers by Bernard Schmitt. The main findings of this book concern the need to go beyond agents’ behaviour to understand the structural origin of a variety of macroeconomic problems, notably, inflation, unemployment, financial instability, and economic crises. The originality that pervades all contributions is plain, when one considers the lack of any structural explanation of national and international economic disorders in the literature within the mainstream approach to economics. This edited volume is of great interest to those who study macroeconomics, monetary economics and money and banking.

This important volume describes the wide-ranging scientific activities of Léon Van Hove, through commentaries by his colleagues and a selection of his most influential papers and documents. The reprinted papers are grouped by topic, starting from his early work in mathematics and theoretical and statistical physics, up to his very last contributions in elementary particle physics and multiparticle dynamics. Van Hove's career as teacher, director and science advisor in many European institutions is presented in sketches by friends and coworkers. A selection of his speeches and documented thoughts on science completes the volume.

In a vast and ever-expanding multiverse, infinite possibilities coexist, and the boundaries of time and space are constantly redefined. From the depths of this cosmic tapestry emerges an extraordinary team of heroes, brought together by destiny and bound by a shared purpose. Embarking on a thrilling and perilous journey, they traverse dimensions and time, unlocking secrets and battling formidable foes in their quest to maintain the delicate balance of the multiverse. Welcome to "The Quantum Odyssey," an epic saga that spans the reaches of existence itself. Our story follows Dr. Adrian Mercer, a brilliant quantum physicist who discovers the Quantum Gate, a groundbreaking invention that enables travel between dimensions. Alongside his team of extraordinary individuals, each with unique abilities and backgrounds, Dr. Mercer explores the wonders and dangers of the multiverse, forging alliances, and facing unimaginable threats. As they journey through the cosmos, the team uncovers ancient mysteries, confronts powerful enemies, and faces the profound responsibility of protecting the countless dimensions that make up the multiverse. "The Quantum Odyssey" is a tale of adventure, sacrifice, and redemption, a story that transcends the boundaries of reality and explores the depths of the human spirit. Join Dr. Mercer and his team as they embark on their incredible odyssey through time and space, forging a legacy that will echo through the ages and shape the destiny of the multiverse. Experience the wonders, the challenges, and the heart-pounding excitement of "The Quantum Odyssey." The adventure awaits!

The bulk of the present book has not been published previously though Chapters II and IV are based in part on two earlier papers of mine: "The Influence of Harald H!1lffding's Philosophy on Niels Bohr's Interpretation of Quantum Mechanics", which appeared in Danish Yearbook of Philosophy, 1979, and "The Bohr-H!1lffding Relationship Reconsidered", published in Studies in History and Philosophy of Science, 1988. These two papers comple ment each other, and in order to give the whole issue a more extended treatment I have sought, in the present volume by drawing on relevant historical material, to substantiate the claim that H!1lffding was Bohr's mentor. Besides containing a detailed account of Bohr's philosophy, the book, at the same time, serves the purpose of making H!1lffding' s ideas and historical significance better known to a non-Danish readership. During my work on this book I have consulted the Royal Danish Library; the National Archive of Denmark and the Niels Bohr Archive, Copenhagen, in search of relevant material. I am grateful for permission to use and quote material from these sources. Likewise, I am indebted to colleagues and friends for commenting upon the manuscript: I am especially grateful to Professor Henry Folse for our many discussions during my visit to New Orleans in November-December 1988 and again here in Elsinore in July 1990.