Superpositioning of electrons in magnets

In summary: What happens if we measure the spins of all the electrons in the magnets from an angle that is perpendicular to the magnet's length? Would we not force the poles to change by a 90 degree angle?
  • #1
I understand that in the bell theorem photonic spin is in a superpoistion state until one observes it. Is that also the case with electrons? If so then how come magnets are magnets? Surely the electrons already made up their minds which way their north and south magnetic poles are pointing according to their spin axis right? Thus generating the magnetic fields in magnets? Then surely they are no longer in superpositioned state? Or are electrons in magnets colapsed wavefunctions and behaving as permenant particles?

Dave
 
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  • #3
I preface that I'm not an expert on this subject.
AFAIK you have a sort of prepared state here, that is, the atoms spins have been magnetically polarized, so they are not in a superposition of states any longer. The analogous with photons would be light that has been polarized.
 
  • #4
You're talking about a statistical system, so what's relevant isn't the individual quantum states, but the bulk average. In thermal equilibrium, the distributions are very sharply peaked about the averages, so you can regard things as being mostly in an energy eigenstate. However, because we're averaging, it doesn't terribly matter if it's in an energy eigenstate or not.
 
  • #5
StatMechGuy said:
You're talking about a statistical system, so what's relevant isn't the individual quantum states, but the bulk average. In thermal equilibrium, the distributions are very sharply peaked about the averages, so you can regard things as being mostly in an energy eigenstate. However, because we're averaging, it doesn't terribly matter if it's in an energy eigenstate or not.

what is eigenstate?

Dave
 
  • #6
davidong3000 said:
what is eigenstate?

Dave

Very short description.

An operator O acts on states p to produce other states q. In notation O(p) = q. This is the math description of on observation acting on a setup to produce a result.

Some of the states are special in that when the operator acts on them, it only multiplies them by a number; so O(p) = cp, where c is some constant number. A state with this property is called an eigenstate of the operator, the constant is called an eigenvalue. The set of all the eigenstates of an operator is called the spectrum of that operator.
 
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  • #7
ok so the electrons in magnets are in superpositioned state but they still average out to point their poles in the direction of the north and south poles of the magnets?

What happens if we measure the spins of all the electrons in the magnets from an angle that is perpendicular to the magnet's length? Would we not force the poles to change by a 90 degree angle?

Dave
 

1. What is superpositioning of electrons in magnets?

The superpositioning of electrons in magnets refers to the phenomenon where the spins of individual electrons within a magnet can align in different directions, resulting in a net magnetic field.

2. How does superpositioning of electrons affect the magnetic properties of a material?

The superpositioning of electrons plays a crucial role in determining the strength and direction of a material's magnetic field. When the spins of electrons are aligned, the material becomes magnetized and can exhibit magnetic properties.

3. What causes superpositioning of electrons in magnets?

The superpositioning of electrons is a result of the quantum mechanical property known as spin, which is an intrinsic angular momentum of particles like electrons. In magnets, the spins of individual electrons interact with each other, causing them to align in a particular direction.

4. Can the superpositioning of electrons be controlled?

Yes, the superpositioning of electrons can be controlled through various methods such as applying an external magnetic field or changing the temperature of the material. By manipulating these factors, the spins of electrons can be influenced, leading to changes in the material's magnetic properties.

5. What are some real-world applications of superpositioning of electrons?

The superpositioning of electrons is essential in various technologies, including magnetic data storage, medical imaging, and electric motors. It is also a fundamental concept in the development of quantum computing, where the control of individual electron spins is crucial for performing calculations.

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