Springer Complexity is an interdisciplinary program that publishes the best research and academic-level teaching on complex systems, spanning natural and life sciences, engineering, economics, medicine, neuroscience, and social and computer science. Complex systems are characterized by many interacting parts that can generate new macroscopic behaviors, such as spontaneous structures. These systems are modeled in various real-life situations, including climate, lasers, chemical reactions, biological networks, stock markets, and the human brain. The program includes two main book series: "Understanding Complex Systems" focusing on applications, and "Springer Series in Synergetics," which covers theoretical and methodological foundations. The series also includes individual titles ranging from textbooks to reference works. The editorial board includes prominent scientists in the field of complex systems. The Springer Series in Synergetics, founded by Herman Haken in 1977, has become a significant reference for the science of complex systems. It includes classic texts that have shaped the field, such as Haken's "Synergetics" and Gardiner's "Handbook of Stochastic Methods." The series publishes monographs and graduate-level textbooks with a focus on physico-mathematical approaches. The book "Quantum Signatures of Chaos" by Fritz Haake is a third revised and enlarged edition, covering topics such as quantum chaos, wave signatures, and the semiclassical theory of periodic orbits. It discusses the universality of spectral fluctuations and the role of random matrix theory in quantum chaos. The book also includes contributions from various researchers and provides a comprehensive overview of the field. The book includes a detailed preface, explaining the development of quantum chaos and the importance of the field. It covers topics such as time reversal, level repulsion, random matrix theory, level clustering, and dissipative systems. The book is structured into chapters that explore various aspects of quantum chaos, including classical Hamiltonian chaos, semiclassical roles for classical orbits, and superanalysis. The book is intended for graduate students, researchers, and physicists interested in quantum mechanics and chaos theory. It provides a self-contained presentation of the subject, covering both theoretical and practical aspects of quantum chaos. The book is an important addition to the Springer Series in Synergetics and reflects the current state of research in the field.Springer Complexity is an interdisciplinary program that publishes the best research and academic-level teaching on complex systems, spanning natural and life sciences, engineering, economics, medicine, neuroscience, and social and computer science. Complex systems are characterized by many interacting parts that can generate new macroscopic behaviors, such as spontaneous structures. These systems are modeled in various real-life situations, including climate, lasers, chemical reactions, biological networks, stock markets, and the human brain. The program includes two main book series: "Understanding Complex Systems" focusing on applications, and "Springer Series in Synergetics," which covers theoretical and methodological foundations. The series also includes individual titles ranging from textbooks to reference works. The editorial board includes prominent scientists in the field of complex systems. The Springer Series in Synergetics, founded by Herman Haken in 1977, has become a significant reference for the science of complex systems. It includes classic texts that have shaped the field, such as Haken's "Synergetics" and Gardiner's "Handbook of Stochastic Methods." The series publishes monographs and graduate-level textbooks with a focus on physico-mathematical approaches. The book "Quantum Signatures of Chaos" by Fritz Haake is a third revised and enlarged edition, covering topics such as quantum chaos, wave signatures, and the semiclassical theory of periodic orbits. It discusses the universality of spectral fluctuations and the role of random matrix theory in quantum chaos. The book also includes contributions from various researchers and provides a comprehensive overview of the field. The book includes a detailed preface, explaining the development of quantum chaos and the importance of the field. It covers topics such as time reversal, level repulsion, random matrix theory, level clustering, and dissipative systems. The book is structured into chapters that explore various aspects of quantum chaos, including classical Hamiltonian chaos, semiclassical roles for classical orbits, and superanalysis. The book is intended for graduate students, researchers, and physicists interested in quantum mechanics and chaos theory. It provides a self-contained presentation of the subject, covering both theoretical and practical aspects of quantum chaos. The book is an important addition to the Springer Series in Synergetics and reflects the current state of research in the field.