This book focuses on one mechanism in black hole physics which has proven to be universal, multifaceted and with a rich phenomenology: rotational superradiance. This is an energy extraction process, whereby black holes can deposit their rotational energy in their surroundings, leading to Penrose processes, black-hole bombs, and even Hawking radiation. Black holes are key players in star formation mechanisms and as engines to some of the most violent events in our universe. Their simplicity and compactness make them perfect laboratories, ideally suited to probe new fields or modifications to the theory of gravity. Thus, black holes can also be used to probe some of the most important open problems in physics, including the nature of dark matter or the strong CP problem in particle physics. This monograph is directed to researchers and graduate students and provides a unified view of the subject, covering the theoretical machinery, experimental efforts in the laboratory, and astrophysics searches. It is focused on recent developments and works out a number of novel examples and applications, ranging from fundamental physics to astrophysics. Non-specialists with a scientific background should also find this text a valuable resource for understanding the critical issues of contemporary research in black-hole physics. This second edition stresses the role of ergoregions in superradiance, and completes its catalogue of energy-extraction processes. It presents a unified description of instabilities of spinning black holes in the presence of massive fields. Finally, it covers the first experimental observation of superradiance, and reviews the state-of-the-art in the searches for new light fields in the universe using superradiance as a mechanism.
The theoretical and experimental results presented in this book will introduce a wide audience to this important area of quantum optics.
The theoretical and experimental results presented in this book will introduce a wide audience to this important area of quantum optics."--Provided by publisher.
The book focuses on the theory of collective spontaneous radiation (superradiance) and provides a detailed physical explanation of the mechanism of collective spontaneous emission.
The theoretical and experimental results presented in this book will introduce a wide audience to this important area of quantum optics.
This volume contains the large majority of the papers presented at the Cooperative Effects Meeting which was held as part of the US Army Sponsored Symposium on New Laser Concepts at Redstone Arsenal, Alabama, from November 30 through ...
The book contains a wealth of references for further reading. Individual chapters deal with relevant aspects of the underlying physics, materials science, and physical chemistry.
... superradiance is affected by the light pulse area from cell 1. For [ln(θ/2π)]2 > 90, on the other hand, the time delay is constant, τD=13ns, demonstrating that the superradiance is triggered ... Superradiance 131 Superradiance from Excitons.
The book includes full discussions of many problems of current interest which are not treated in any extant book, and all these matters are considered with perception and understanding."—S.
The workshop series brings together experts in nuclear theory, experiment, data evaluations, and applications, and fosters interactions among these groups.
... superradiance. The atoms composing a superradiant state do not need to be in a cav- ity at the same time for generating superradiance. In the coherent single- atom superradiance, the atoms in a beam are prepared in a superradiant state ...