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Manousakis E. Practical Quantum Mechanics: Modern Tools and Applications

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Manousakis E. Practical Quantum Mechanics: Modern Tools and Applications
Oxford University Press, 2016. — 348 p. — ISBN: 0198749341

Quantum mechanics forms the foundation of all modern physics, including atomic, nuclear, and molecular physics, the physics of the elementary particles, condensed matter physics. Modern astrophysics also relies heavily on quantum mechanics. Quantum theory is needed to understand the basis for new materials, new devices, the nature of light coming from stars, the laws which govern the atomic nucleus, and the physics of biological systems. As a result the subject of this book is a required course for most physics graduate students.
While there are many books on the subject, this book targets specifically graduate students and it is written with modern advances in various fields in mind. Many examples treated in the various chapters as well as the emphasis of the presentation in the book are designed from the perspective of such problems. For example, the book begins by putting the Schrodinger equation on a spatial discrete lattice and the continuum limit is also discussed, inspired by Hamiltonian lattice gauge theories. The latter and advances in quantum simulations motivated the inclusion of the path integral formulation. This formulation is applied to the imaginary-time evolution operator to project the exact ground state of the harmonic oscillator as is done in quantum simulations. As an example of how to take advantage of symmetry in quantum mechanics, one-dimensional periodic potentials are discussed, inspired by condensed matter physics. Atoms and molecules are discussed within mean-field like treatment (Hartree-Fock) and how to go beyond it. Motivated by the recent intense activity in condensed matter and atomic physics to study the Hubbard model, the electron correlations in the hydrogen molecule are taken into account by solving the two-site Hubbard model analytically. Using the canonical Hamiltonian quantization of quantum electrodynamics, the photons emerge as the quanta of the normal modes, in the same way as the phonons emerge in the treatment of the normal modes of the coupled array of atoms. This is used later to treat the interaction of radiation with atomic matter.
Schrödinger equation on a lattice
Dirac notation
Back to the Schrödinger equation on a lattice
Operator mechanics
Time evolution and wavepackets
Simultaneous observables
Continuity equation and wavefunction properties
Bound states in one dimension
Scattering in one dimension
Periodic potentials
The harmonic oscillator
WKB approximation
Quantum mechanics and path integrals
Applications of path integrals
Angular momentum
Bound states in spherically symmetric potentials
The hydrogen-like atom
Angular momentum and spherical symmetry
Scattering in three dimensions
Time-independent perturbation expansion
Applications of perturbation theory
Time-dependent Hamiltonian
Spin angular momentum
Adding angular momenta
Identical particles
Elementary atomic physics
The elasticity field
Quantization of the free electromagnetic field
Interaction of radiation with charged particles
Elementary relativistic quantum mechanics
Review of the Dirac delta function
Normalization integral of spherical harmonics
Legendre equation
Expression for the spherical Bessel function
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