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Results tagged with quantum-mechanics
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user 94350
Quantum mechanics describes the microscopic properties of nature in a regime where classical mechanics no longer applies. It explains phenomena such as the wave-particle duality, quantization of energy, and the uncertainty principle and is generally used in single-body systems. Use the quantum-field-theory tag for the theory of many-body quantum-mechanical systems.
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Three operators commuting with each other
It is well known that if two operators commute, the it is possible to find common eigenfucntions for them. What if we have 3 operators that commute with each other? Will we find common eigenfunctions …
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Level spacing as system size increases
Why does the eigenenergies of a certain system come closer to each other as the system size increases? Is this general for all systems?
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Energy in one wavelength
I know that the energy of one photon equals $E=hf$ and that concept of photons came from the photoelectric effect. My question here can we assume that a photon equals one wavelength for example if we …
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Proof for quantized angular momentum [duplicate]
In Bohr's model, Bohr stated that the angular momentum of the electron is quantized and stated that $$L=\frac{nh}{2\pi}$$ So what is the proof for that equation or, in other words, how did he derive t …
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How did we discover that hydrogen has 1 proton?
How did we know or discover that hydrogen has 1 proton and 1 electron. I know the atomic structures throughout the history, but still remains my elementary level question how did we know that certain …
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