The book attempts to provide an introduction to quantum field theory emphasizing conceptual issues frequently neglected in more "utilitarian" treatments of the subject. The book is divided into four parts, entitled respectively "Origins", "Dynamics", "Symmetries", and "Scales". The emphasis is conceptual - the aim is to build the theory up systematically from some clearly stated foundational concepts - and therefore to a large extent anti-historical, but two historical Chapters ("Origins") are included to situate quantum field theory in the larger context of modern physical theories. The three remaining sections of the book follow a step by step reconstruction of this framework beginning with just a few basic assumptions: relativistic invariance, the basic principles of quantum mechanics, and the prohibition of physical action at a distance embodied in the clustering principle. The "Dynamics" section of the book lays out the basic structure of quantum field theory arising from the sequential insertion of quantum-mechanical, relativistic and locality constraints. The central role of symmetries in relativistic quantum field theories is explored in the third section of the book, while in the final section, entitled "Scales", we explore in detail the feature of quantum field theories most critical for their enormous phenomenological success - the scale separation property embodied by the renormalization group properties of a theory defined by an effective local Lagrangian.

The Conceptual Framework of Quantum Field Theory

Science & Math

DUNCAN, Anthony

History & Philosophy

Oxford University Press

Constructing Quantum Mechanics is the first of two volumes on the genesis of quantum mechanics. This volume traces the early contributions by Planck, Einstein, and Bohr, all showing the need for drastic changes to the physics of their day. It examines the efforts by Sommerfeld and others to develop a new theory, now known as the old quantum theory. After some striking successes, this theory ran into serious difficulties and ended up serving as the scaffold on which the arch of modern quantum mechanics was built. This volume breaks new ground, both in its treatment of the work of Sommerfeld and his associates, and by offering new perspectives on classic papers by Planck, Einstein, Bohr, and others. Paying close attention to both primary and secondary sources, Constructing Quantum Mechanics provides an in-depth analysis of the heroic struggle to come to terms with the wealth of mostly spectroscopic data that eventually gave us modern quantum mechanics.

Constructing Quantum Mechanics: Volume 1: The Scaffold: 1900-1923

Janssen, Michel

Physics

This is the second of two volumes on the genesis of quantum mechanics in the first quarter of the 20th century. It covers the period 1923-1927. After covering some of the difficulties the old quantum theory had run into by the early 1920s as well as the discovery of the exclusion principle and electron spin, it traces the emergence of two forms of the new quantum mechanics, matrix mechanics and wave mechanics, in the years 1923-27. It then shows how the new theory took care of some of the failures of the old theory and put its successes on a more solid basis. Finally, it shows how in 1927 the two forms of the new theory were unified, first through statistical transformation theory, then through the Hilbert space formalism.\nThis volume provides a detailed analysis of the classic papers by Heisenberg, Born, Jordan, Dirac, De Broglie, Einstein, Schrödinger, von Neumann and other authors. Drawing on the correspondence of these and other physicists, their later reminiscences and the extensive secondary literature on the “quantum revolution”, this volume places these papers in the context of the discussions out of which modern quantum mechanics emerged. It argues that the genesis of modern quantum mechanics can be seen as the construction of an arch on a scaffold provided by the old quantum theory, discarded once the arch could support itself.

Constructing Quantum Mechanics Volume Two: The Arch, 1923-1927

This two-volume book is on the genesis of quantum mechanics.\nThe first volume covers the key developments in the period 1900-1923, which provided the scaffold on which the arch of modern quantum mechanics was built. This volume traces the early contributions by Planck, Einstein, and Bohr to the theories of black-body radiation, specific heats, and spectroscopy, all showing the need for drastic changes to the physics of their day. It examines the efforts by Sommerfeld and others to provide a new theory, now known as the old quantum theory. After some striking initial successes (explaining the fine structure of hydrogen, X-ray spectra, and the Stark effect), the old quantum theory ran into serious difficulties (failing to provide consistent models for helium and the Zeeman effect) and eventually gave way to matrix and wave mechanics.\nThe second volume provides detailed analysis of the classic papers by Heisenberg, Born, Jordan, Dirac, De Broglie, Einstein, Schrödinger, von Neumann and other authors. Drawing on the correspondence of these and other physicists, their later reminiscences and the extensive secondary literature on the "quantum revolution," this volume places these papers in the context of the discussions out of which modern quantum mechanics emerged. It argues that the genesis of modern quantum mechanics can be seen as the construction of an arch on a scaffold provided by the old quantum theory, discarded once the arch could support itself.

Constructing Quantum Mechanics, Two-Volume Pack: Volume 1: The Scaffold: 1900-1923, Volume 2: The Arch: 1923-1927

The book attempts to provide an introduction to quantum field theory emphasizing conceptual issues frequently neglected in more "utilitarian" treatments of the subject. The book is divided into four parts, entitled respectively "Origins", "Dynamics", "Symmetries", and "Scales". The emphasis is conceptual - the aim is to build the theory up systematically from some clearly stated foundational concepts - and therefore to a large extent anti-historical, but two historical Chapters ("Origins") are included to situate quantum field theory in the larger context of modern physical theories. The three remaining sections of the book follow a step by step reconstruction of this framework beginning with just a few basic assumptions: relativistic invariance, the basic principles of quantum mechanics, and the prohibition of physical action at a distance embodied in the clustering principle. The ``Dynamics" section of the book lays out the basic structure of quantum field theory arising from the sequential insertion of quantum-mechanical, relativistic and locality constraints. The central role of symmetries in relativistic quantum field theories is explored in the third section of the book, while in the final section, entitled "Scales", we explore in detail the feature of quantum field theories most critical for their enormous phenomenological success - the scale separation property embodied by the renormalization group properties of a theory defined by an effective local Lagrangian. The book includes a wide range of problems at the end of the chapters. To request a copy of the Solutions Manual, visit: http://global.oup.com/uk/academic/physics/admin/solutions

The recently retired Canon of Hexham Abbey in Northumberland, England, and author of numerous works on Celtic Christianity, Anthony Duncan provides a selection of ancient Celtic prayers and blessings, as well as contemporary writings inspired by Celtic spirituality. Each day has its own special emphasis, underlining divine presence in all activity and experience.

A Little Book of Celtic Prayer: A Daily Companion and Guide

Christian Books & Bibles

Christian Living

Harpercollins

Using the ancient Celtic mysteries to tune into your spirituality and enhance mindfulness and wellbeing.

Celtic Mysticism: A Spiritual Guide To The Wisdom Of The Ancients

Religion & Spirituality

New Age & Spirituality

Lorenz Books

Jesus: Essential Readings

Inner Traditions

The most important relationship in our lives, after our relationship with God, says the author of this new book, is the relationship between our spirits, minds, and bodies. For our relationships with other people, and indeed with nature and the world itself, depend substantially upon our sense of inner harmony and wholeness.Father Duncan shows us how the incarnation of the Son of God restores, in principle, a harmony and balance within us that is essential for a full Christian life.In this wise and thoughtful handbook, we are guided towards a deeper understanding of the workings of the Spirit of everyday life and the importance of this for healing our troubled world. This book helps us live our daily lives more fully and to see them as opportunities for expressing and experiencing God's Blessings, for each of us is truly a Temple of the Spirit.

The Temple of the Spirit: A Christian View of Life

Sun Chalice Books

This is the record of a remarkable conversation between an angel and a ra ther surprised Christian priest. It is notable for its intelligent treatment of little understood esoteric subjects and its insight into the evolution of consciousness and the relationship between human consciousness and Divine Being. the seven chapters cover subjects ranging from the rhythms and patterns of nature to channeling reincarnation and the relation of the Qabalah to the chakras

The Sword in the Sun: Dialogue With an Angel

See the best price to sell, buy, or rent books by DUNCAN, Anthony. BookScouter helps to compare book prices from 25+ online bookstores and 30+ buyback vendors with a single search.

Books by DUNCAN, Anthony

See the best price to sell, buy, or rent books by DUNCAN, Anthony. BookScouter helps to compare book prices from 25+ online bookstores and 30+ buyback vendors with a single search.

The Conceptual Framework of Quantum Field Theory

Constructing Quantum Mechanics: Volume 1: The Scaffold: 1900-1923

Constructing Quantum Mechanics Volume Two: The Arch, 1923-1927

Constructing Quantum Mechanics, Two-Volume Pack: Volume 1: The Scaffold: 1900-1923, Volume 2: The Arch: 1923-1927

The Conceptual Framework of Quantum Field Theory

A Little Book of Celtic Prayer: A Daily Companion and Guide

Celtic Mysticism: A Spiritual Guide To The Wisdom Of The Ancients

Jesus: Essential Readings

The Temple of the Spirit: A Christian View of Life

The Sword in the Sun: Dialogue With an Angel