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Born-Jordan Quantization

Author: Maurice A. de Gosson

Publisher: Springer

Published: 2016-01-11

Total Pages: 226

ISBN-13: 3319279025

This book presents a comprehensive mathematical study of the operators behind the Born–Jordan quantization scheme. The Schrödinger and Heisenberg pictures of quantum mechanics are equivalent only if the Born–Jordan scheme is used. Thus, Born–Jordan quantization provides the only physically consistent quantization scheme, as opposed to the Weyl quantization commonly used by physicists. In this book we develop Born–Jordan quantization from an operator-theoretical point of view, and analyze in depth the conceptual differences between the two schemes. We discuss various physically motivated approaches, in particular the Feynman-integral point of view. One important and intriguing feature of Born-Jordan quantization is that it is not one-to-one: there are infinitely many classical observables whose quantization is zero.

The Development of Elementary Quantum Theory

Author: Herbert Capellmann

Publisher: Springer

Published: 2017-09-12

Total Pages: 98

ISBN-13: 3319618849

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This book traces the evolution of the ideas that eventually resulted in the elementary quantum theory in 1925/26. Further, it discusses the essential differences between the fundamental equations of Quantum Theory derived by Born and Jordan, logically comprising Quantum Mechanics and Quantum Optics, and the traditional view of the development of Quantum Mechanics. Drawing on original publications and letters written by the main protagonists of that time, it shows that Einstein’s contributions from 1905 to 1924 laid the essential foundations for the development of Quantum Theory. Einstein introduced quantization of the radiation field; Born added quantized mechanical behavior. In addition, Born recognized that Quantum Mechanics necessarily required Quantum Optics; his radical concept of truly discontinuous and statistical quantum transitions (“quantum leaps”) was directly based on Einstein’s physical concepts.

Quantum Harmonic Analysis

Author: Maurice A. de Gosson

Publisher: Walter de Gruyter GmbH & Co KG

Published: 2021-07-05

Total Pages: 240

ISBN-13: 3110722771

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Quantum mechanics is arguably one of the most successful scientific theories ever and its applications to chemistry, optics, and information theory are innumerable. This book provides the reader with a rigorous treatment of the main mathematical tools from harmonic analysis which play an essential role in the modern formulation of quantum mechanics. This allows us at the same time to suggest some new ideas and methods, with a special focus on topics such as the Wigner phase space formalism and its applications to the theory of the density operator and its entanglement properties. This book can be used with profit by advanced undergraduate students in mathematics and physics, as well as by confirmed researchers.

Lectures on the Mathematics of Quantum Mechanics II: Selected Topics

Author: Gianfausto Dell'Antonio

Publisher: Springer

Published: 2016-05-24

Total Pages: 381

ISBN-13: 9462391157

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The first volume (General Theory) differs from most textbooks as it emphasizes the mathematical structure and mathematical rigor, while being adapted to the teaching the first semester of an advanced course in Quantum Mechanics (the content of the book are the lectures of courses actually delivered.). It differs also from the very few texts in Quantum Mechanics that give emphasis to the mathematical aspects because this book, being written as Lecture Notes, has the structure of lectures delivered in a course, namely introduction of the problem, outline of the relevant points, mathematical tools needed, theorems, proofs. This makes this book particularly useful for self-study and for instructors in the preparation of a second course in Quantum Mechanics (after a first basic course). With some minor additions it can be used also as a basis of a first course in Quantum Mechanics for students in mathematics curricula. The second part (Selected Topics) are lecture notes of a more advanced course aimed at giving the basic notions necessary to do research in several areas of mathematical physics connected with quantum mechanics, from solid state to singular interactions, many body theory, semi-classical analysis, quantum statistical mechanics. The structure of this book is suitable for a second-semester course, in which the lectures are meant to provide, in addition to theorems and proofs, an overview of a more specific subject and hints to the direction of research. In this respect and for the width of subjects this second volume differs from other monographs on Quantum Mechanics. The second volume can be useful for students who want to have a basic preparation for doing research and for instructors who may want to use it as a basis for the presentation of selected topics.

Emergence Of The Quantum From The Classical: Mathematical Aspects Of Quantum Processes

Author: De Gosson Maurice A

Publisher: World Scientific

Published: 2017-11-10

Total Pages: 308

ISBN-13: 1786344165

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The emergence of quantum mechanics from classical world mechanics is now a well-established theme in mathematical physics. This book demonstrates that quantum mechanics can indeed be viewed as a refinement of Hamiltonian mechanics, and builds on the work of George Mackey in relation to their mathematical foundations. Additionally when looking at the differences with classical mechanics, quantum mechanics crucially depends on the value of Planck's constant h. Recent cosmological observations tend to indicate that not only the fine structure constant α but also h might have varied in both time and space since the Big Bang. We explore the mathematical and physical consequences of a variation of h; surprisingly we see that a decrease of h leads to transitions from the quantum to the classical. Emergence of the Quantum from the Classical provides help to undergraduate and graduate students of mathematics, physics and quantum theory looking to advance into research in the field. Contents: Hamiltonian MechanicsHamilton–Jacobi TheoryMatter Waves, Schrödinger's Equation, and Bohm's Theory The MetatronUncertainties and Quantum BlobsQuantum States and the Density MatrixVarying Planck's ConstantAppendices: The Symplectic GroupThe Metaplectic RepresentationBorn–Jordan QuantizationTwisted Product and Convolution Readership: Undergraduate and graduate students of mathematics and physics, interested in analysis and differential equations, probability and statistics, geometry and topology and mathematical physics. Keywords: Classical Mechanics;Hamiltonian Mechanics;Quantum Mechanics;Planck's Constant;Mathematical Physics;Algebraic GeometryReview:0

Quantum Harmonic Analysis

Author: Maurice A. de Gosson

Publisher: Walter de Gruyter GmbH & Co KG

Published: 2021-07-05

Total Pages: 247

ISBN-13: 3110722909

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Quantum Mechanics in Matrix Form

Author: Günter Ludyk

Publisher: Springer

Published: 2017-10-25

Total Pages: 214

ISBN-13: 3319263668

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This book gives an introduction to quantum mechanics with the matrix method. Heisenberg's matrix mechanics is described in detail. The fundamental equations are derived by algebraic methods using matrix calculus. Only a brief description of Schrödinger's wave mechanics is given (in most books exclusively treated), to show their equivalence to Heisenberg's matrix method. In the first part the historical development of Quantum theory by Planck, Bohr and Sommerfeld is sketched, followed by the ideas and methods of Heisenberg, Born and Jordan. Then Pauli's spin and exclusion principles are treated. Pauli's exclusion principle leads to the structure of atoms. Finally, Dirac ́s relativistic quantum mechanics is shortly presented. Matrices and matrix equations are today easy to handle when implementing numerical algorithms using standard software as MAPLE and Mathematica.

Time-Frequency Analysis of Operators

Author: Elena Cordero

Publisher: Walter de Gruyter GmbH & Co KG

Published: 2020-09-21

Total Pages: 458

ISBN-13: 311053245X

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This authoritative text studies pseudodifferential and Fourier integral operators in the framework of time-frequency analysis, providing an elementary approach, along with applications to almost diagonalization of such operators and to the sparsity of their Gabor representations. Moreover, Gabor frames and modulation spaces are employed to study dispersive equations such as the Schrödinger, wave, and heat equations and related Strichartz problems. The first part of the book is addressed to non-experts, presenting the basics of time-frequency analysis: short time Fourier transform, Wigner distribution and other representations, function spaces and frames theory, and it can be read independently as a short text-book on this topic from graduate and under-graduate students, or scholars in other disciplines.

The Formation and Logic of Quantum Mechanics

Author: Mitsuo Taketani

Publisher: World Scientific

Published: 2001

Total Pages: 350

ISBN-13: 9789812810113

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This book analyzes the intricate logical process through which the quantum theory was developed, and shows that the quantum mechanics thus established is governed by stereo-structural logic . The method of analysis is based on Mituo Taketani''s three-stage theory of scientific cognition, which was presented and developed in close connection with Yukawa''s theory of the meson. According to the three-stage theory, scientific cognition proceeds through a series of coiling turns of the phenomenological, substantialistic and essentialistic stages. The old quantum mechanics is shown to be in a substantialistic stage, followed by the quantum mechanics in the corresponding essentialistic stage. Sample Chapter(s). Chapter 1.1: Themodynamical Investigation of Black Body Radiation (206 KB). Chapter 1.2: Atomistic Investigations of Black Body Radiation (257 KB). Chapter 1.3: Einstein''s Light Quantum (261 KB). Chapter 1.4: The Light Quantum and the Theory of Relativity (158 KB). Chapter 1.1: Diffculties seen from Statistical Heat Theory (281 KB). Chapter 1.2: Molecular Theoretical Significance of the Planck Theory (236 KB). Chapter 1.3: Conflict between the Wave and Particle Natures (235 KB). Chapter 1.1: Heisenbergs Quantum Condition (307 KB). Chapter 1.2: Born-Jordan''s Formulation with Matrices (361 KB). Chapter 1.3: Dirac''s Formulation by Quantum Algebra (299 KB). Chapter 1.4: Attempts at the Interpretation of Matrix Mechanics (272 KB). Contents: Volume I: Quantum of Radiation; The Formation of Atomic Models; Volume II: Difficulties in Radiation Theory; The Quantum of Action and Atomic Models; The Quantum Condition, Transition Probability and Correspondence Principle; Theory of Atomic Structure and Spin of Electron; The Interconnection of Wave- and Particle-Natures; Volume III: The Proposal and Formulation of Matrix Mechanics; From the Proposal of Wave Mechanics to Quantum Mechanics; The Establishment of Quantum Mechanics; The Logic of Quantum Mechanics. Readership: Undergraduates and researchers in quantum and theoretical physics.

Formation And Logic Of Quantum Mechanics, The (In 3 Vols)

Author: Masayuki Nagasaki

Publisher: World Scientific

Published: 2001-11-23

Total Pages: 915

ISBN-13: 9814491187

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