It is the foundation of all quantum physics including quantum chemistry, quantum field theory, quantum technology, and quantum information science.
Definition:
Quantum mechanics is a fundamental theory in physics provides a description of the physical properties of nature at the scale of atoms and subatomic particles.
Source:
[1] Wikipedia Contributors. “Quantum Mechanics.” Wikipedia, Wikimedia Foundation, 2 Nov. 2020, en.wikipedia.org/wiki/Quantum_mechanics. Accessed 2 Nov. 2020.
Largest theories in classical physics can be derived from quantum mechanics as an approximation valid at large scale.
In one of them, a mathematical function, the wave function, provides information about the probability amplitude of energy, momentum, and other physical properties of a particle.
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The original interpretation of quantum mechanics is the Copenhagen interpretation, developed by Niels Bohr and Werner Heisenberg in Copenhagen during the 1920s.
Early quantum theory was profoundly re-conceived in the mid-1920s by Niels Bohr, Erwin Schrödinger, Werner Heisenberg, Max Born and others. The modern theory is formulated in various specially developed mathematical formalisms.
Some Idea about Quantum Mechanics:
Another method is called “semi-classical equation of motion”, which applies to systems in support of which quantum mechanics produces only small deviations from classical behavior.
😊Newer interpretations of quantum mechanics own been formulated do away with the idea of “wave function collapse”.
😊The Schrödinger equation describes how wave functions transformation in time, playing a role similar to Newton’s second law in classical mechanics.
😊In the mid-1920s quantum mechanics was developed to become the standard formulation in support of atomic physics.
😊In the decades after the formulation of quantum mechanics, the question of what constitutes a “measurement” has been extensively studied.
😊In quantum mechanics, it refers to a discrete unit assigned to certain physical quantities such as the energy of an atom at rest.
😊The probabilistic nature of quantum mechanics thus stems from the act of measurement.
😊Numerous systems are treated dynamically in classical mechanics are define by such “static” wave functions.
😊In the matrix formulation, the instantaneous state of a quantum system encodes the probabilities of its measurable properties, or “observables”.
😊In his paper “On the Quantum Theory of Radiation,” Einstein expanded on the interaction between energy and matter to explain the absorption and emission of energy by atoms.
😊In 1926 Erwin Schrödinger suggested a partial differential equation in support of the wave functions of particles like electrons.
😊After Planck’s solution in 1900 to the black-body radiation problem, Albert Einstein offered a quantum-positioned explanation of the photoelectric effect.
Source:
[1] Wikipedia Contributors. “Quantum Mechanics.” Wikipedia, Wikimedia Foundation, 2 Nov. 2020, en.wikipedia.org/wiki/Quantum_mechanics. Accessed 2 Nov. 2020.
[2] geralt. “Tail Star Christmas – Free Image on Pixabay.” Pixabay.Com, 30 Sept. 2017, pixabay.com/illustrations/tail-star-christmas-christmas-tree-2801599/. Accessed 2 Nov. 2020.
[3] geralt. “Galaxy Universe Physics – Free Image on Pixabay.” Pixabay.Com, 10 July 2018, pixabay.com/illustrations/galaxy-universe-physics-multiverse-3528123/. Accessed 2 Nov. 2020.