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22 ore fa · Quantum mechanics is a fundamental theory in physics that describes the behavior of nature at and below the scale of atoms. [2] : 1.1 It is the foundation of all quantum physics, which includes quantum chemistry, quantum field theory, quantum technology, and quantum information science . Quantum mechanics can describe many systems that ...
4 giorni fa · Newton's laws of motion are three physical laws that can be considered as the foundation for classical mechanics. They describe the relationship between a body, the forces acting on it, and its motion in response to those forces.
2 giorni fa · The field of quantum mechanics dates to 1900, the year German scientist Max Planck (1858–1947) discovered that energy could come in discrete packages called quanta. It advanced in 1913, when Danish physicist Niels Bohr (1885–1962) used quantum principles to explain what had until then been inexplicable, the exact wavelengths of light emitted or absorbed by a gas of hydrogen atoms.
22 ore fa · This study presents a comparative analysis of length deformation in Classical and Relativistic Mechanics, specifically investigating 10-gram objects accelerating to 1% of the speed of light.
22 ore fa · As we see, the results of quantum mechanics reduce to those of classical mechanics in the limit \(\hbar \rightarrow 0\). Thanks to the sixth postulate, we can practically compute everything. Let’s start with an example. Consider a particle in one dimension, and denote by x its coordinate and by p its conjugate momentum.
3 giorni fa · Quantum mechanics [QM] is a branch of physics which describes physical systems so that properties like the energy or angular momentum are discrete quantities that are multiples of a smallest unit or quantum. A famous physicist named Erwin Schrödinger made an example of quantum mechanics, often called Schrödinger's cat.
4 giorni fa · A key difference here is that, in the classical world, we can first measure speed and then measure position and get an accurate answer for both. But in the quantum world, the first measurement changes the system, which makes the second measurement not fully correlated with the first. That means the order in which we measure things matters.
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