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What are the practical and aplicable concepts of quantum physics ?

By aayush_18 ·
Quantum physics simply explains the quantization of any thing, i.e,that thing can't
exist independently due to its instability. It
occurs in packets or bundles. for example mass
is quantized because of short range force
between two quarks. nucleons and electrons
can't be broken due to this strong force.
Similarly the charge is quantized.

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"Surely,..." <nt>

by santeewelding In reply to You may like
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Thanks for the suggestion seanferd...

by boxfiddler Moderator In reply to You may like

will put it on a list of some sort.

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A kind of parsing and clarification

by seanferd In reply to What are the practical an ...

<i>Quantum physics simply explains the quantization of any thing</i>
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Quantum physics explains that fundamental particles and forces are quantized, measures the quanta. The useful bit is using this model to explain the interactions between quanta. From this we can discover new possibilities for the design of microelectronics, for example, in the architecture of components and the properties of materials. Conversely, we can figure what conditions must be met to engineer a solution that we already know is possible, like designing a photolithographic process for
the next processor scale, like the transition from 60nm to 45nm.
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<i>i.e,that thing can't exist independently due to its instability.</i>
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I don't quite understand this bit. Many things in the quantum world are extremely unstable, which is why, for instance, we don't manipulate pi rho mesons for purposes of technology. Many particles can exist independently for extreme periods of time, say, 14.5 billion (thousand million) years and onwards. I'm just saying that I don't see how this defines all quanta. Actually, I don't even see how it follows from the first half of the sentence, if you'll forgive me.
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<i>It occurs in packets or bundles.</i>
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I find that a "bunldle of one" is a bit odd, but that's human language interpereting a non-intuitive, non-experiential reality for you. Yes, quanta occur as quanta, or indivisible units.
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<i>for example mass is quantized because of short range force between two quarks.</i>
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It is? I'll just take your word on that one for now. However, there is no known quantum of mass analogous to the quantum of EM, the photon. I saw one theory that its properties can somehow be derived naturally and its numerical value is twice the Planck mass, in someone's theoretical framework. Lots of theories and no good tests yet, though. Maybe they'll find the Higgs. <sf> It would indeed be weird if the force between quarks (strong force, the color charge mediated by gluons) indeed produces the property "mass". The Higgs would then be a gluon or glueball or something, and also could be the "graviton", uniting the electroweak (mediated by the intermediate vector bosons) with the strong force and gravity in one fell swoop. </sf> Delightful!
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<i>nucleons and electrons can't be broken due to this strong force.</i>
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Electrons are fundamental particles, with no constituent quarks, which puts them in the lepton family with the muon and the tau, and their respective neutrinos.
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Nucleons, as describing neutrons and protons, can be broken down. Neutrons have a habit of decaying occasionally, lasting about ten minutes as a free particle (one of those that don't exist independently due to instability!). They also commonly decay in unstable configurations (radioactive elements). Proton decay, if it happens, occurs on extreme timescales, it is true. It would violate some theories and suppoert other, more stringy, theories.
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If by nucleons you mean quarks, which are the constituent bits of guys like protons and neutrons held together by the strong force, I hear they aren't prone to breaking down, or going solo for that matter. In fact, any sufficient amount of energy use to break the intarquark bonds would be channeled into the creation of a new set of quarks (a new particle).
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<i>Similarly the charge is quantized.</i>
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You got it. Charge, spin, color (no, not that kind), angular momentum, electron energy levels, etc., can be quantized. If it can be measured in multiples of some form of Planck's Constant, it can be quantized.
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Lost in Ohio, you ain't.

by santeewelding In reply to A kind of parsing and cla ...

Slogging through all that (crap) is, of course, necessary -- specially the mathematics. And the history. And the false starts. And the technology. And the personalities. And so on. But, Lord, once you do, and you begin looking at it from the other entirely conceptual direction, how neat.

Keep it up. I follow. So probably do many others, with like secret gratitude -- which ain't so secret, now.

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A superposition of "lost" and "not lost"

by seanferd In reply to Lost in Ohio, you ain't.

The wave function collapses differently in varying instances, to varying degrees of "lost". (Or "not lost")

Is the glass half empty, half full, or is the glass just over-sized for the amount of water it contains?

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Darned if that's not

by boxfiddler Moderator In reply to A superposition of "lost" ...

a reasonable gray.

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