B How do particles get their spin?

[strangerep]

What do particles do with their spin?

The total set of a particle's properties , e.g., energy, momentum, parity, charge(s), etc, etc., characterizes the particle. Some properties (the invariants such mass, total angular momentum and charge) determine what type of particle it is. Others, such as energy, momentum, etc, determine its state relative to other particles.

As to what a particle might "do" with any of these properties, well, it could participate in interactions with other particles, possibly producing new particle(s) with new values of these properties.

 

[PeterDonis]

What do particles do with their spin?

I have no idea what you mean by this question.

 

[strangerep]

For quantum-classical correspondence, I agree, but that still does not ground a claim that, in the quantum case, a particle having spin means something is actually spinning.

Umm,... I hope you don't think I actually said that, or think that, else we're about to have another major run of mutual misunderstandings...

 

[BadgerBadger92]

I have no idea what you mean by this question.

I mean that particles have their spin, and they don’t spin with it. So what are they doing with it? Is it just a property of the particle and doesn’t do anything with it?

 

[PeterDonis]

I hope you don't think I actually said that

I'm clarifying for the OP's sake.

 

[PeterDonis]

I mean that particles have their spin, and they don’t spin with it. So what are they doing with it?

I still don't understand what you mean by "doing with it".

Is it just a property of the particle and doesn’t do anything with it?

It is a property of the particle (that was answered way back in post #2), but I still don't understand what "just" and "doesn't do anything with it" mean.

 

[BadgerBadger92]

I still don't understand what you mean by "doing with it".It is a property of the particle (that was answered way back in post #2), but I still don't understand what "just" and "doesn't do anything with it" mean.

Give me a little bit to figure out how to appropriately ask the question.

 

[malawi_glenn]

I still don't understand what you mean by "doing with it".

I think OP means "interaction". How does the spin of a particle A influence particle B

 

[BadgerBadger92]

Give me a little bit to figure out how to appropriately ask the question.

Never mind I found the answer

 

[BadgerBadger92]

I think OP means "interaction". How does the spin of a particle A influence particle B

I wasn’t asking about that but if you could tell me about that too would be great

 

[malawi_glenn]

I wasn’t asking about that but if you could tell me about that too would be great

Consider this question then "what do particle do with their electric charge"?
or "what do particle do with their mass"?

Can you answer those? Then maybe we can figure out what you are after.

 

[PeterDonis]

Never mind I found the answer

What is the answer?

 

[BadgerBadger92]

What is the answer?

They don’t do anything with it, it’s just a characteristic of the particle

 

[malawi_glenn]

They don’t do anything with it, it’s just a characteristic of the particle

What does "do with it" even mean?
They must "do" something, otherwise we would not know about quantum-spin in the first place (hint: interactions)

 

[strangerep]

What does "do with it" even mean?
They must "do" something, otherwise we would not know about quantum-spin in the first place (hint: interactions)

Heh,... this is like asking "what does a lump of rock do with its hardness?"

Answer 1: "By itself, nothing -- it just sits there quietly. That's why they make good pets."

Answer 2: "In interaction with someone else's head,... well,... that gets more interesting..."

 

[PeterDonis]

They don’t do anything with it, it’s just a characteristic of the particle

And how did you come up with that answer?

 

[BadgerBadger92]

I found the link. Maybe I’m just not understanding what is being said.

https://www.physicsforums.com/threads/quantum-spin-if-its-not-spinning-what-is-it-doing.1008781/

 

[malawi_glenn]

I found the link. Maybe I’m just not understanding what is being said.

https://www.physicsforums.com/threads/quantum-spin-if-its-not-spinning-what-is-it-doing.1008781/

You found the answer, in a thread where you asked the same question, one year ago...

 

[PeterDonis]

You found the answer, in a thread where you asked the same question, one year ago...

And with that, this thread is closed.