Quantum Computing Thread

Discussion in 'Science & Tech' started by PhySom, Nov 5, 2019.

  1. PhySom

    PhySom

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    Quantum computing will be the next step in humanities ever growing march to exposing the laws of nature.

    This thread will be solely for Quantum computing and the current problems solved.

    I am doing a quantum machine learning research project at university. If you are interested in understanding the nuances of quantum physics just post here.
     
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  2. imperialist

    imperialist

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    How does two particles become entangled?
     
  3. Lostbox

    Lostbox 「Immortal Sage」

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    I will it affect gaming?
     
  4. PhySom

    PhySom

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    First lets explain the non-menclature. Entaglement of qubits (where a qubit is a superposition of an arbitary 0 state and 1 state) occurs when the changing of one qubits state causes the other qubits state to change corresspondingly.

    Particle entanglement is actually often the norm at birth, there are several ways to do this but i think the most common way is through atom excitation. Historically calcium atoms were placed in a highly excited energy level and their electrons , consequent due to transition laws , were forbidden to release a single photon to enter their "ground state" (lowest energy level).

    Instead they emit two photons in quick successive , nanosecond difference, bursts.In the case that these photons leave in opposite direction a conservation of angular momentum comes into play which implies the polarizations are entagled(opposite "states")

    There are also some tricks to force a higher probability of this happening and thus causing an entangled state.
     
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  5. PhySom

    PhySom

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    Maybe security wise, but not for at least another century.Quantum computers are just good at some tasks involving algorithms, quantum simulations etc.

    Idk about gaming but i wouldn't think it would have a huge impact.
     
  6. PhySom

    PhySom

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    https://www.livescience.com/google-hits-quantum-supremacy.html
     
  7. DR OSMAN

    DR OSMAN VIP

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    We need more physoms in Somalia and less Spotters. Me and @Jablibax are doing a religious and cultural understanding tour of primitive societies in australia when he comes here, the aborigines. The purpose of the task is to see where PL fits into the scheme of humanity and our ancestors achievements. We will baseline against the Jews who are definitely leaders of the world in terms of groups. Do u have any common questions u want to ask. It's raw rural outback and tribal laws are governed by elders there and not government so u need to be prepared to go back 65000 years ago in time. We will know what is man made and what is natural. I have seen so far the following

    god
    tribes
    fire
    family networks and morals are present
    stone based tools(they didnt reach iron age)
    they also know how to paint that's interesting
    Language
    murder, stealing, lying and all that im not sure if they know it, its one question i am determined to ask

    What they lack

    no numbering system. If u ask him how many kids u got he says MANY or 1
    no writing of course
    no clothes


    This debunks religion brought morality, it already existed. They brought knowlege of god maybe but not morality or else aborigines are living example of isolation from the known world and religions. Wish us the best on our puntite tour of aborigines. While Somalis are not growing bro, we are kkkkkkkk. They do lack a civilization tho and civilization is well rooted in iraq ironically where abraham and religion started too. So I am not saying religion has no role to play in the world, but many things were established prior to religion as NATURAL LAWS
     
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  8. Tukraq

    Tukraq

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  9. Tukraq

    Tukraq

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    no encryption is safe with this, could be truly world changing in the next couple of years
     
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  10. Issa waraabe

    Issa waraabe

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    delayed choice quatam eraser really time travel?
     
  11. RasCanjero

    RasCanjero

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    Waiting on two things...

    One is secure quantum communication. Apparently we aren't that far from it.

    The other is quantum supremacy. Not sure how big of a system you need for it but I think 100 qubits is the minimum.

    At that level we should be able to test a lot of theories we have on chemistry and we should probably be able to simulate some high energy physics experiments.

    Expect a huge list of new super materials that would drastically change our world.

    Google announced recently that they reached QS but I didn't look into it since they barely made any waves in the scientific community working on it.

    I think officially Microsoft is the closest to it at around 20 qubits.

    Then again most governments are probably way ahead and want to keep that to themselves since it's the biggest arms race since the development of the nuke.

    Get to 500 qubits and all your rivals secrets would lay bare to you.

    No one will publicly announce they reached QS because the markets and most currencies would break down that same day.
     
  12. PhySom

    PhySom

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    You can roughly assume a multiqubit syste. has 2^n bits of information , max wise.Quantum supremacy is a vague concept , Google's computer did reach QS but in a useless algorithm.

    This algorithm would roughly take classical computers 10000 years to compute.

    When we develop a Quantum Computer able to solve shors algorithm then prime numbers can be solved and encryption broken.

    However quantum encryption would protect all data thus rendering the quantum "hacking" techniques useless.
     
  13. RasCanjero

    RasCanjero

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    Do we have an encryption algorithm for 100+ qubits though?

    Hopefully someone comes up with an algorithm for 1,000+ qubits...Only then would I be comfortable in holding my assets digitally if QS has been announced.

    If I had access to an unnanounced quantum computer the first thing I would do is hack all the crypto currencies and quickly sell billions worth before it becomes public.
     
  14. PhySom

    PhySom

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    I was talking to my professor , she has been working in this field for 20 years.Quantum computers are a few decades away and there are already companies like google looking to encrypt data.

    Google would sell this and potentially make trillion after patenting the quantum computers.

    Your assets are already stored digitally , aren't you part of a bank?
     
  15. RasCanjero

    RasCanjero

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    Right now yh but when quantum computing becomes a reality then I wouldn't trust no network security or encryptions.

    Google might offer up an open source encryption algo but for all we know the real hidden quantum computers might be already able to break them.

    I'm just gonna savour the simple life we have now.
     
  16. Tukraq

    Tukraq

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    professors behind if she's thinking a few decades(no way it takes that long), 1 at the max
     
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