Earlier quoted context omitted.
But what is a "real" particle anyway?
"real" particles are those that can leave the holodeck ([1]) "quasi-particles" vanish at the doorstep :) [1] https://en.wikipedia.org/wiki/Holodeck PS: replace "holodeck" with "tantalum arsenide crystal" to yield a less off-topic comment.
Massless particle with promise for next-generation electronics discovered
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Re: Massless particle with promise for next-generation electronics discovered
#22Re: Massless particle with promise for next-generation electronics discovered
#23Re: Massless particle with promise for next-generation electronics discovered
#24Someone should perhaps point out, that the article talks about quasiparticles. Quasiparticles are a bit similar to the particle aspect of a quantum mechanical wave. So for example deformations of the lattice of an crystal are sound waves, but it is also possible to look at the deformations as a field and then quantize the field. Excitations of this field look suspiciously similar to a particle, as in they are produce…
Thanks, great summary. To translate to non-physicists: It quacks like a particle, it walks like a particle but it's not really a particle. Like counting stones or apples, the both can be understood in terms of similar arithmetic. Same here, only more maths. And, those properties that were observed, may come in handy.
Re: Massless particle with promise for next-generation electronics discovered
#25Earlier quoted context omitted.
But what is a "real" particle anyway?
"real" particles are those that can leave the holodeck ([1]) "quasi-particles" vanish at the doorstep :) [1] https://en.wikipedia.org/wiki/Holodeck PS: replace "holodeck" with "tantalum arsenide crystal" to yield a less off-topic comment.
I think this could break your classification :)
Re: Massless particle with promise for next-generation electronics discovered
#26Earlier quoted context omitted.
But what is a "real" particle anyway?
"real" particles are those that can leave the holodeck ([1]) "quasi-particles" vanish at the doorstep :) [1] https://en.wikipedia.org/wiki/Holodeck PS: replace "holodeck" with "tantalum arsenide crystal" to yield a less off-topic comment.
But hey, speaking of TNG... Can't you just stick on of those fancy crystals in your computer?
Wait, computers made out of crystals? Did that just happen? :)
Re: Massless particle with promise for next-generation electronics discovered
#27Earlier quoted context omitted.
Thanks, great summary. To translate to non-physicists: It quacks like a particle, it walks like a particle but it's not really a particle. Like counting stones or apples, the both can be understood in terms of similar arithmetic. Same here, only more maths. And, those properties that were observed, may come in handy.
It is as real a particle as any other, no? If you look closely enough all particles are just waveforms in particular fields (e.g. an electron will "interfere with itself" in a double-slit experiment).
I'm of the school though that adheres to the notion that maths can be used to model the world, and while it strongly suggests 'the world is made of math' this is not conclusively the case. So, to me, mathematical equivalence does not mean 'physically equal' since physical systems can exhibit many more degrees of freedom than just those captured in a specific model. Sometimes the maths and physics match astoundingly well.
Re: Massless particle with promise for next-generation electronics discovered
#28Earlier quoted context omitted.
But what is a "real" particle anyway?
The difference between a bullet made of real particles and one made of math is that the real one can kill you.
We take a physical system and apply some mathematical properties to it. In the case of bullet I think what is interesting is to model it's energy, E = 1/2 mv*v. Now, if we take the kinetic energy of a bullet, and apply it to any other object, and then instantiate this object in the real world the lethality of the object depends on the nature of the object. A ball of hay of a diameter of 1 m in 1 atm 10 meters away with the kinetic energy of a bullet does not sound lethal. An object more like a bullet, like an iron nail, probably can be. Gummy bear? Who knows.
The point is, the maths here are about physical things, although it can take a lot of experimental work to manufacture a specific physical system that exhibits behaviour which is modeled with specific piece of math.
Re: Massless particle with promise for next-generation electronics discovered
#29Re: Massless particle with promise for next-generation electronics discovered
#30Earlier quoted context omitted.
The difference between a bullet made of real particles and one made of math is that the real one can kill you.
Quasi-particles are not just math. They have measurable properties that are like properties of real particles (just like "holes" in P-type semiconductors can be measured to behave like quasi-positrons). Or, replying to your proposition: "With the holodeck safeties off, even holographic bullets can kill." - Picard, First Contact. :)
I'm sorry to ask because I should actually know this, isn't the remaining positive charge accounted to the protons in the core? A moving "hole" is just a figure of speech.