George Placzek: A Nuclear Physicist's Odyssey


Book Description

This book presents the first detailed biography of George Placzek — an outstanding physicist, a participant in the Manhattan Project who stood at the very inception of nuclear physics and the subsequent development of the nuclear bomb in the course of the WWII. In the 1930s, George Placzek was known as an adventurous person with a sharp sense of humor, a tireless generator of novel physics ideas which he generously shared with his colleagues. Born in Brno (now Czech Republic) into a wealthy Jewish family, he lost all his relatives to Holocaust, casting a tragic shadow on his life.Placzek's scientific career began in the late 1920s when the quantum revolution was almost over, but nuclear physics was still at its infancy. He established personal and scientific relations with the creators of quantum mechanics, such as Heisenberg in Leipzig and Niels Bohr in Copenhagen. In Rome, he worked with Fermi, and in Copenhagen he became a part of Bohr's nuclear physics team which dominated nuclear theory at that time. The scope of Placzek's pilgrimage around world physics centers in the 1930s was unique among his colleagues. In January 1939, George Placzek managed to emigrate from Europe to the US, and became a part of the British Mission within the Manhattan Project. His physical insights were instrumental in advancing from the basic discoveries on nuclear chain reactions to the Trinity experiment, Hiroshima and Nagasaki.This book is a unique compilation of a large number of previously unknown and unpublished documents from private and university archives, police reports, etc. Placzek's correspondence with the leadership of the Hebrew University in 1934, the 1937 NKVD interrogation files of Konrad Weisselberg, recollections of Ella Andriesse as well as the Zurich Police report of 1956 detailing the circumstances of Placzek's death in a Zurich hotel are illuminating as they shed light on poorly known pages of his life.




George Placzek


Book Description




Ensnared between Hitler and Stalin


Book Description

In the 1930s, hundreds of scientists and scholars fled Hitler’s Germany. Many found safety, but some made the disastrous decision to seek refuge in Stalin’s Soviet Union. The vast majority of these refugee scholars were arrested, murdered, or forced to flee the Soviet Union during the Great Terror. Many of the survivors then found themselves embroiled in the Holocaust. Ensnared between Hitler and Stalin explores the forced migration of these displaced academics from Nazi Germany to the Soviet Union. The book follows the lives of thirty-six scholars through some of the most tumultuous events of the twentieth century. It reveals that not only did they endure the chaos that engulfed central Europe in the decades before Hitler came to power, but they were also caught up in two of the greatest mass murders in history. David Zimmerman examines how those fleeing Hitler in their quests for safe harbour faced hardship and grave danger, including arrest, torture, and execution by the Soviet state. Drawing on German, Russian, and English sources, Ensnared between Hitler and Stalin illustrates the complex paths taken by refugee scholars in flight.




Julian Schwinger: The Physicist, The Teacher, And The Man


Book Description

In the post-quantum-mechanics era, few physicists, if any, have matched Julian Schwinger in contributions to and influence on the development of physics. A deep and provocative thinker, Schwinger left his indelible mark on all areas of theoretical physics; an eloquent lecturer and immensely successful mentor, he was gentle, intensely private, and known for being “modest about everything except his physics”. This book is a collection of talks in memory of him by some of his contemporaries and his former students: A Klein, F Dyson, B DeWitt, W Kohn, D Saxon, P C Martin, K Johnson, S Deser, R Finkelstein, Y J Ng, H Feshbach, L Brown, S Glashow, K A Milton, and C N Yang. From it, one can get a glimpse of Julian Schwinger, the physicist, the teacher, and the man. Altogether, this book is a must for all physicists, physics students, and others who are interested in great legends.




Age Of The Earth, The: A Physicist's Odyssey


Book Description

This book spells out in detail how the age of the Earth has been determined over the centuries. First — the 'biblical' age: how was the date of Creation 4004 BC figured out? A date which is so important even today ... it is the basis of claims made by millions that the Earth is only about 6000 years old. Next — the response of geologists (and Darwin) for a very old Earth. Then, Kelvin's calculation of how long it would take for a hot Earth to cool down to its present state. And finally, today's answer ('billions'), based on the properties of radioactive materials. So, how old is Planet Earth?




Optics in Our Time


Book Description

Light and light based technologies have played an important role in transforming our lives via scientific contributions spanned over thousands of years. In this book we present a vast collection of articles on various aspects of light and its applications in the contemporary world at a popular or semi-popular level. These articles are written by the world authorities in their respective fields. This is therefore a rare volume where the world experts have come together to present the developments in this most important field of science in an almost pedagogical manner. This volume covers five aspects related to light. The first presents two articles, one on the history of the nature of light, and the other on the scientific achievements of Ibn-Haitham (Alhazen), who is broadly considered the father of modern optics. These are then followed by an article on ultrafast phenomena and the invisible world. The third part includes papers on specific sources of light, the discoveries of which have revolutionized optical technologies in our lifetime. They discuss the nature and the characteristics of lasers, Solid-state lighting based on the Light Emitting Diode (LED) technology, and finally modern electron optics and its relationship to the Muslim golden age in science. The book’s fourth part discusses various applications of optics and light in today's world, including biophotonics, art, optical communication, nanotechnology, the eye as an optical instrument, remote sensing, and optics in medicine. In turn, the last part focuses on quantum optics, a modern field that grew out of the interaction of light and matter. Topics addressed include atom optics, slow, stored and stationary light, optical tests of the foundation of physics, quantum mechanical properties of light fields carrying orbital angular momentum, quantum communication, and Wave-Particle dualism in action.




Under the Spell of Landau


Book Description

This invaluable collection of memoirs and reviews on scientific activities of the most prominent theoretical physicists belonging to the Landau School OCo Landau, Anselm, Gribov, Zeldovich, Kirzhnits, Migdal, Ter-Martirosyan and Larkin OCo are being published in English for the first time.The main goal is to acquaint readers with the life and work of outstanding Soviet physicists who, to a large extent, shaped theoretical physics in the 1950sOCo70s. Many intriguing details have remained unknown beyond the OC Iron CurtainOCO which was dismantled only with the fall of the USSR.







Quantum Field Theory Ii


Book Description

This textbook grew out of lecture notes the author used in delivering a quantum field theory (QFT) course for students (both in high energy physics and condensed matter) who already had an initial exposure to the subject.It begins with the path integral method of quantization presented in a systematic and clear-cut manner. Perturbation theory is generalized beyond tree level, to include radiative corrections (loops). Renormalization procedures and the Wilsonian renormalization group (RG flow) are discussed, asymptotic freedom of non-Abelian gauge theories is derived, and some applications in Quantum Chromodynamics (QCD) are considered, with a brief digression into the Standard Model (SM). The SM case requires a study of the spontaneous breaking of gauge symmetry, a phenomenon which would be more appropriate to call 'Higgsing of the gauge bosons.' Other regimes attainable in gauge theories are explained as well. In the condensed matter part, the Heisenberg and Ising model are discussed. The present textbook differs from many others in that it is relatively concise and, at the same time, teaches students to carry out actual calculations which they may encounter in QFT-related applications.




Love and Physics


Book Description

This special book is a compilation of essays on a remarkable but little-known story that lasted over half a century of world-renown physicist, the late Sir Rudolf Peierls and his wife Genia Kannegiser. Peierls collected a lot of prestigious awards in his lifetime, and in the beginning of WW2, he and Otto Frisch were responsible for the inception of the Anglo-American nuclear program (1940). He was also one of the key contributors in the research at Los Alamos during those turbulent times. Most previous books on Peierls have focused on his scientific research, while the contents for this volume sheds light on his private life in dramatic circumstances. The extensive contributions were not only gathered from the relatives of Genia, the couple's daughters, Landau's students, and from Russian and English archives, but they also include the unique perspectives of the author who is a professional theoretical physicist and is also fluent in Russian, his native language. So, this fascinating story of love, friendship and physics between Rudolf and Genia is being told for the first time from a surprisingly new angle through correspondence between Genia and Rudolf, memoirs and other documents, interesting and informal excerpts from Peierls' private "diary" covering the years 1979-1994 that will take the reader on a journey through communism, world war, the trials and tribulations of the loving couple with distinctly very different personalities.