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Quantum mechanics on the personal computer - 3rd ed 94 (3 1/2 MS-DOS program diskette) (3rd Ed., 3rd ed. 1994. Softcover reprint of the original 3rd ed. 1994)

Langue : Anglais

Auteurs :

Couverture de l’ouvrage Quantum mechanics on the personal computer - 3rd ed 94 (3 1/2 MS-DOS program diskette)
Quantum Mechanics on the Personal Computer presents the most up-to-date access to elementary quantum mechanics. Based on the interactive program INTERQUANTA (included on a 3 1/2" MS-DOS diskette) and its extensive 3D colour graphic features, the book guides its readers through computer experiments covering all aspects of quantum mechanics. The course, with a wide variety of more than 250 detailed, class-tested problems, provides students with unique practical experience. This 3rd edition includes three program versions: one needing a coprocessor, one that can run without it, and a third program version using a 32 bit processor. The book is also intended for lecturers and teachers, who will find here excellent, hands-on classroom demonstrations for their quantum mechanics course.
1. Introduction.- 1.1 Interquanta.- 1.2 The Structure of this Book.- 1.3 The Demonstrations.- 1.4 The Computer Laboratory.- 1.5 Literature.- 2. Free Particle Motion in One Dimension.- 2.1 Physical Concepts.- 2.1.1 Planck’s Constant. Schrödinger’s Equation for a Free Particle.- 2.1.2 The Wave Packet. Group Velocity. Normalization.- 2.1.3 Analogies in Optics.- 2.2 A First Session with the Computer.- 2.2.1 Starting IQ.- 2.2.2 An Automatic Demonstration.- 2.2.3 A First Dialogue.- 2.2.4 A Little Systematics.- 2.3 The Time Development of a Gaussian Wave Packet.- 2.4 The Spectral Function of a Gaussian Wave Packet.- 2.5 The Wave Packet as a Sum of Harmonic Waves.- 2.6 Exercises.- 3. Bound States in One Dimension.- 3.1 Physical Concepts.- 3.1.1 Schrödinger’s Equation with a Potential. Eigenfunctions. Eigenvalues.- 3.1.2 Normalization. Discrete Spectra. Orthonormality.- 3.1.3 The Infinitely Deep Square-Well Potential.- 3.1.4 The Harmonic Oscillator.- 3.1.5 The Step Potential.- 3.1.6 Time-Dependent Solutions.- 3.1.7 Harmonic Particle Motion. Coherent States. Squeezed States.- 3.1.8 Particle Motion in a Deep Square Well.- 3.2 Eigenstates in the Infinitely Deep Square-Well Potential and in the Harmonic-Oscillator Potential.- 3.3 Eigenstates in the Step Potential.- 3.4 Harmonic Particle Motion.- 3.5 Particle Motion in the Infinitely Deep Square-Well Potential.- 3.6 Exercises.- 4. Scattering in One Dimension.- 4.1 Physical Concepts.- 4.1.1 Stationary Scattering States. Continuum Eigenstates and Eigenvalues. Continuous Spectra.- 4.1.2 Time-Dependent Solutions of the Schrödinger Equation.- 4.1.3 Right-Moving and Left-Moving Stationary Wavesof a Free Particle.- 4.1.4 Orthogonality and Continuum Normalization of Stationary Waves of a Free Particle. Completeness.- 4.1.5 Boundary Conditions for Stationary Scattering Solutions in Step Potentials.- 4.1.6 Stationary Scattering Solutions in Step Potentials.- 4.1.7 Constituent Waves.- 4.1.8 Normalization of Continuum Eigenstates.- 4.1.9 Harmonic Waves in a Step Potential.- 4.1.10 Time-Dependent Scattering Solutions in a Step Potential.- 4.1.11 Transmission and Reflection. Unitarity. The Argand Diagram.- 4.1.12 The Tunnel Effect.- 4.1.13 Resonances.- 4.1.14 Phase Shifts upon Reflection at a Steep Rise or Deep Fall of the Potential.- 4.1.15 Transmission Resonances upon Reflection at “More- and Less-Dense Media”.- 4.1.16 The Quantum-Well Device and the Quantum-Effect Device.- 4.2 Stationary Scattering States in the Step Potential.- 4.3 Scattering of a Harmonic Wave by the Step Potential.- 4.4 Scattering of a Wave Packet by the Step Potential.- 4.5 Transmission and Reflection. The Argand Diagram.- 4.6 Exercises.- 4.7 Analogies in Optics.- 4.8 Reflection and Refraction of Stationary Electromagnetic Waves.- 4.9 Reflection and Refraction of a Harmonic Light Wave.- 4.10 Scattering of a Wave Packet of Light.- 4.11 Transmission, Reflection and Argand Diagram for a Light Wave.- 4.12 Exercises.- 5. A Two-Particle System: Coupled Harmonic Oscillators.- 5.1 Physical Concepts.- 5.1.1 The Two-Particle System.- 5.1.2 Initial Condition for Distinguishable Particles.- 5.1.3 Time-Dependent Wave Functions and Probability Distributions for Distinguishable Particles.- 5.1.4 Marginal Distributions for Distinguishable Particles.- 5.1.5 Wave Functions for Indistinguishable Particles. Symmetrization for Bosons. Antisymmetrization for Fermions.- 5.1.6 Marginal Distributions of the Probability Densities of Bosons and Fermions.- 5.1.7 Normal Oscillations.- 5.2 Stationary States.- 5.3 Time Dependence of Global Quantities.- 5.4 Joint Probability Densities.- 5.5 Marginal Distributions.- 5.6 Exercises.- 6. Free Particle Motion in Three Dimensions.- 6.1 Physical Concepts.- 6.1.1 The Schrödinger Equation of a Free Particle in Three Dimensions. The Momentum Operator.- 6.1.2 The Wave Packet. Group Velocity. Normalization. The Probability Ellipsoid.- 6.1.3 Angular Momentum. Spherical Harmonics.- 6.1.4 The Stationary Schrödinger Equation in Polar Coordinates. Separation of Variables. Spherical Bessel Functions. Continuum Normalization. Completeness.- 6.1.5 Partial-Wave Decomposition of the Plane Wave.- 6.1.6 Partial-Wave Decomposition of the Gaussian Wave Packet.- 6.2 The 3D Harmonic Plane Wave.- 6.2.1 A Cartesian 3D Plot.- 6.2.2 A Polar 3D Plot.- 6.3 The Plane Wave Decomposed into Spherical Waves.- 6.4 The 3D Gaussian Wave Packet.- 6.5 The Probability Ellipsoid.- 6.6 Angular-Momentum Decomposition of a Wave Packet.- 6.7 Exercises.- 7. Bound States in Three Dimensions.- 7.1 Physical Concepts.- 7.1.1 The Schrödinger Equation for a Particle under the Action of a Force. The Centrifugal Barrier. The Effective Potential.- 7.1.2 Bound States. Scattering States. Discrete and Continuous Spectra.- 7.1.3 The Infinitely Deep Square-Well Potential.- 7.1.4 The Spherical Step Potential.- 7.1.5 The Harmonic Oscillator.- 7.1.6 The Coulomb Potential. The Hydrogen Atom.- 7.1.7 Harmonic Particle Motion.- 7.2 Radial Wave Functions in Simple Potentials.- 7.3 Radial Wave Functions in the Step Potential.- 7.4 Probability Densities.- 7.5 Harmonic Particle Motion.- 7.6 Exercises.- 8. Scattering in Three Dimensions.- 8.1 Physical Concepts.- 8.1.1 Radial Scattering Wave functions.- 8.1.2 Boundary and Continuity Conditions. Solution of the System of Inhomogeneous Linear Equations for the Coefficients.- 8.1.3 Scattering of a Plane Harmonic Wave.- 8.1.4 Scattering Amplitude and Phase. Unitarity. The Argand Diagram.- 8.2 Radial Wave functions.- 8.3 Stationary Wave Functions and Scattered Waves.- 8.4 Differential Cross Sections.- 8.5 Scattering Amplitude. Phase Shift. Partial and Total Cross Sections.- 8.6 Exercises.- 9. Special Functions of Mathematical Physics.- 9.1 Basic Formulae.- 9.1.1 Hermite Polynomials.- 9.1.2 Harmonic-Oscillator Eigenfunctions.- 9.1.3 Legendre Polynomials and Legendre functions.- 9.1.4 Spherical Harmonics.- 9.1.5 Bessel functions.- 9.1.6 Spherical Bessel functions.- 9.1.7 Laguerre Polynomials.- 9.1.8 Radial Eigenfunctions of the Harmonic Oscillator.- 9.1.9 Radial Eigenfunctions of the Hydrogen Atom.- 9.2 Hermite Polynomials.- 9.3 Eigenfunctions of the One-Dimensional Harmonic Oscillator.- 9.4 Legendre Polynomials and Associated Legendre functions.- 9.4.1 Type 2 Plots—Functions of x or cos ?.- 9.4.2 Type 2 Plots—Polar Diagrams.- 9.5 Spherical Harmonics.- 9.6 Bessel functions.- 9.6.1 Type 2 Plots.- 9.6.2 Type 0 Plots.- 9.7 Spherical Bessel functions.- 9.8 Laguerre Polynomials.- 9.8.1 Type 2 Plots.- 9.8.2 Type 0 Plots.- 9.9 Radial Eigenfunctions of the Harmonic Oscillator.- 9.10 Radial Eigenfunctions of the Hydrogen Atom.- 9.11 Simple Functions of a Complex Variable.- 9.12 Exercises.- 10. Additional Material and Hints for the Solution of Exercises.- 10.1 Units and Orders of Magnitude.- 10.1.1 Definitions.- 10.1.2 SI Units.- 10.1.3 Scaled Units.- 10.1.4 Atomic and Subatomic Units.- 10.1.5 Data-Table Units.- 10.1.6 Special Scales.- 10.2 Argand Diagrams and Unitarity for One-Dimensional Problems.- 10.2.1 Probability Conservation and the Unitarity of the Scattering Matrix.- 10.2.2 Time Reversal and the Scattering Matrix.- 10.2.3 Diagonalization of the Scattering Matrix.- 10.2.5 Resonances.- 10.3 Hints and Answers to the Exercises.- Appendix A. A Systematic Guide to IQ.- A.1 Dialog Between the User and IQ.- A.1.1 A Simple Example.- A.1.2 The General Form of Commands.- A.1.3 The Descriptor File.- A.1.4 The Descriptor (Record).- A.1.5 The PLOT Command.- A.1.6 The STOP Command.- A.1.7 HELP: The Commands HE and PH.- A.2 Coordinate Systems and Transformations.- A.2.1 The Different Coordinate Systems.- A.2.2 Defining the Transformations.- A.3 The Different Types of Plot.- A.3.1 Choosing a Plot Type: The Command CH.- A.3.2 Cartesian 3D Plots (Type 0 Plots).- A.3.3 Polar 3D Plots (Type 1 Plots).- A.3.4 2D Plots (Type 2 Plots).- A.3.5 3D Column Plots (Type 3 Plots).- A.3.6 Special 3D Plots (Type 10 Plots).- A.4 The Background in the Plots.- A.4.1 Boxes and Coordinate Axes: The Command BO.- A.4.2 Scales.- A.4.3 Arrows.- A.4.4 Text and Numbers.- A.4.5 Mathematical Symbols and Formulae.- A.5 Further Commands.- A.5.1 Line Styles.- A.5.2 Multiple Plots.- A.5.3 Combined Plots.- A.5.4 Using Different Plotting Devices.- A.5.5 The Different Running Modes.- A.5.6 Definition of Physical Variables: The Commands V0 to V9.- A.5.7 Reserved Commands.- Appendix B. How to Install IQ.- B.1 Hardware Requirements.- B.2 Operating-System Requirements.- B.3 Diskette Format.- B.4 Installation.- B.5 Reformatting IQ for Different Types of Diskette.- Appendix C. Lists of All Files Provided.- C.1 Command Files.- C.2 Program Files.- C.3 Descriptor Files for Examples and Exercises.- C.4 Command Input Files and Associated Descriptor Files for Demonstrations.- C.5 DataFiles.- C.6 HelpFiles.- Appendix D. Graphics Devices and Metafiles.- Index of IQ Commands.

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