All Questions
Tagged with wavelength quantum-mechanics
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De Broglie wavelength and how it leads to the wave function
From what I know, de Broglie derived the wavelength equation using Einstein's $E=mc^2$ and the Einstein-Planck equation $E=h\nu$. My teacher explained this by saying an electron literally moves in ...
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What is the upper limit of size for diffracting an object?
All items in the universe can be said to have a De Broglie wavelength which is significant if that wavelength is comparable to the object's size (I don't have to worry about my wavelength diffracting ...
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What would happen if my body de Broglie wavelength is significantly large? [duplicate]
I have a question that what would the world be, if matter de Broglie wavelength was large?
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Mass in de Broglie Formula
Regarding de Broglie formula
$$\lambda= h/mv$$
here m is relative mass or rest mass?
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Rigorous derivation of DeBroglie wavelength
I've scoured the internet as much as I can, and I've yet to find a rigorous derivation of the DeBroglie wavelength. They all go something like this:
$$E=\gamma mc^2, \ \gamma \approx 1 \ \therefore\ E=...
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What exactly is matter wave?
Wavelength of matter wave is given by de-broglie as h/p. I want to know wavelength of what wave is being discussed, or specifically what is matter wave? Is it the 'group wave' that has same velocity ...
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The Role of Harmonic Frequencies in Natural Phenomena
I am deeply fascinated by the apparent intrinsic relationship between harmonic frequencies and the natural world. This relationship is evident not only in the mathematics that simplify our description ...
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The Uncertainty in momentum and the de Broglie wavelength
I'd like to pose a straightforward question by providing a brief example to determine whether my current approach is correct or incorrect.
Imagine I have an electron confined within a box measuring $1\...
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What's (intuitively) the $k$ in the de Broglie formula?
Background: I'm currently doing self-study of quantum physics by following university level quantum physics lectures on YouTube (e.g. the YouTube MIT 8.04 Quantum Physics I, Spring 2013 or Stanford ...
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Why does Rayleigh-Jeans law agree with Planck's at long wavelengths?
Why does Rayleigh-Jeans law agree with the Plancks distribution at high wavelengths? I know mathematically, that at higher wavelengths, we can approximate the exponential in the denominator by $1+ \...
user285848
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Wave-packet in configuration space and deriving Schrodinger equation with this approach
In the book "Group theory and it's Applications to the Quantum Mechanics of atomic spectra " by Eugene P. Wigner
in chapter 4 The elements of quantum mechanics it is written
Consider a many ...
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If the particle moves with group wave, what $\lambda$ in De Broglie equation should we use?
according to De Broglie equation
\begin{gather} p=\frac{h}{\lambda} \end{gather}
and knowing also that a particle moves with the group velocity not the phase velocity, indicates that has a range of $\...
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What does "the range of reciprocal wavelengths" mean for a wave packet? (QM)
I'm learning about the derivation of the uncertainty principle via the addition of a finite number of sinusoidal waves of varying wavelengths and frequencies (basically, baby steps towards a Fourier ...
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Relationship between wavelength and storage
I have a question regarding the working of optical discs. We know that Blu-ray disc stores more data than DVD. There are two reasons for that:
The pits are smaller
The wavelength of blue light is ...
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Can a photon have a radius?
I have seen someone answering this question by saying that a photon can has a radius as big as its wavelength, is that true? If it is true Does this then mean a photon of the radio radiation, for ...
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