Jisho

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Noun, Noun which may take the genitive case particle 'no'
1. quantumPhysics
Wikipedia definition
2. QuantumIn physics, a quantum is the minimum amount of any physical entity involved in an interaction. Behind this, one finds the fundamental notion that a physical property may be "quantized," referred to as "the hypothesis of quantization". This means that the magnitude can take on only certain discrete values. There is a related term of quantum number. An example of an entity that is quantized is the energy transfer of elementary particles of matter and of photons and other bosons.
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