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Quantum mechanics is a fundamental theory in physics that describes the behavior of nature at and below the scale of atoms.: 1.1 It is the foundation of all quantum physics including quantum chemistry, quantum field theory, quantum technology, and quantum information science. Classical physics, the collection of theories that existed before the advent of quantum mechanics, describes many aspects of nature at an ordinary (macroscopic) scale, but is not sufficient for describing them at small (atomic and subatomic) scales. Most theories in classical physics can be derived from quantum mechanics as an approximation valid at large (macroscopic) scale.Unlike classical systems, quantum systems have bound states quantized to discrete values of energy, momentum, angular momentum, and other quantities; measurements of systems show characteristics of both particles and waves (wave–particle duality); and there are limits to how accurately the value of a physical quantity can be predicted prior to its measurement, given a complete set of initial conditions (the uncertainty principle). Quantum mechanics arose gradually from theories to explain observations that could not be reconciled with classical physics, such as Max Planck's solution in 1900 to the black-body radiation problem, and the correspondence between energy and frequency in Albert Einstein's 1905 paper, which explained the photoelectric effect. These early attempts to understand microscopic phenomena, now known as the "old quantum theory", led to the full development of quantum mechanics in the mid-1920s by Niels Bohr, Erwin Schrödinger, Werner Heisenberg, Max Born, Paul Dirac and others. The modern theory is formulated in various specially developed mathematical formalisms. In one of them, a mathematical entity called the wave function provides information, in the form of probability amplitudes, about what measurements of a particle's energy, momentum, and other physical properties may yield. Source: Wikipedia (en)
Works about quantum mechanics 16
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Quantum Mechanics: The Theoretical Minimum
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Programming the Universe
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Introduction to Quantum Mechanics
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Shadows of the Mind
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Quantum Reality
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Black-Body Theory and the Quantum Discontinuity
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Causality and Chance in Modern Physics
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The structure of matter
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Mecanică cuantică – Teoria nerelativistă
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The theory of rate processes
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La physique nouvelle et les quanta
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Principles of Quantum Mechanics
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Quantenmechanik: Symmetrien / Walter Greiner, Berndt Müller
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Picturing Quantum Processes
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Mécanique quantique I
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Mécanique quantique II
Subject - wd:Q944