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The electron is a stationary wave, called stationary state

 
Anonymous Coward
User ID: 76658155
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07/27/2020 02:22 AM
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The electron is a stationary wave, called stationary state
A stationary state is a quantum state with all observables independent of time.
It is very similar to the concept of atomic orbital and molecular orbital in chemistry.
For a single-particle Hamiltonian, this means that the particle has a constant probability distribution for its position, its velocity, its spin, etc.
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Anonymous Coward (OP)
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07/27/2020 02:24 AM
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Re: The electron is a stationary wave, called stationary state
Why do electrons in an atom occupy only the stationary states?
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Anonymous Coward (OP)
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07/27/2020 02:31 AM
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Re: The electron is a stationary wave, called stationary state
Why does an electron not emit energy when it is in a stationary state?
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They are stationary waves, like the electrons and photons and are seen as "particles" only when they are "seen" .

Anonymous Coward
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07/27/2020 02:50 AM
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Re: The electron is a stationary wave, called stationary state
hmm

I kind of think the stationary state thing is just because it's not meaningful or practical in most cases to track the trajectory of an electron while it moves about. So they use knowledge of the potential & kinetic energy to determine where it possibly can move & just assume it has a certain probability of being there because it moves so fast (faster than we can practically measure).

Honestly, QM looks like a statistician got a hold of physics and beat it with an ugly stick. chuckle
Anonymous Coward
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07/27/2020 05:30 PM
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Re: The electron is a stationary wave, called stationary state
hmm

I kind of think the stationary state thing is just because it's not meaningful or practical in most cases to track the trajectory of an electron while it moves about. So they use knowledge of the potential & kinetic energy to determine where it possibly can move & just assume it has a certain probability of being there because it moves so fast (faster than we can practically measure).

Honestly, QM looks like a statistician got a hold of physics and beat it with an ugly stick. chuckle
 Quoting: Anonymous Coward 68968161


When you learn classical physics, you start out with Newton's laws of motion, including F = ma. Then you learn how to calculate position, velocity, & acceleration as a function of time. E.g.

v = at
x = ½at² + v0 t + x0

Then you learn about the Euler-Lagrange equation which lets you determine an object's motion just by knowing the potential & kinetic energy of the system. In some cases, it's much simpler to use. Same sort of thing with the time-independent Schrodinger equation, etc.





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