Is This What Quantum Mechanics Looks Like?

  • Опубликовано:  11 месяцев назад
  • Silicone oil droplets provide a physical realization of pilot wave theories.
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    The standard theory of quantum mechanics leaves a bit to be desired. As Richard Feynman put it, "I think I can safely say that no one understands quantum mechanics." This is because observations of experiments have led us to a theory that contradicts common sense. The wave function contains all the information that is knowable about a particle, yet it can only be used to calculate probabilities of where a particle will likely turn up. It can't give us an actual account of where the particle went or where it will be at some later time.

    Some have suggested that this theory is incomplete. Maybe something is going on beneath the radar of standard quantum theory and somehow producing the appearance of randomness and uncertainty without actually being random or uncertain. Theories of this sort are called hidden variable theories because they propose entities that aren't observable. One such theory is pilot wave theory, first proposed by de Broglie, but later developed by Bohm. The idea here is that a particle oscillates, creating a wave. It then interacts with the wave and this complex interaction determines its motion.

    Experiments using silicone oil droplets on a vibrating bath provide a remarkable physical realization of pilot wave theories. They give us a physical picture of what the quantum world might look like if this is what's going on - and this theory is still deterministic. The particle is never in two places at once and there is no randomness.

    Edited by Robert Dahlem

    Sound design by A Shell in the Pit
  • ОбразованиеОбразование
  • Длительность: 7:41
  • veritasium  silicone oil droplets  silicone oil  droplets  quantum mechanics  pilot wave  de broglie  quantum  theory  double slit  tunneling  wave  particle  duality  experiment  speaker  oil  droplet  bohmian mechanics  hidden variable theory  

Комментарии: 6 898

  • Gregory Cox
    Gregory Cox 3 часа назад

    Like the ancient maxim, "As above, so below", or more recently, "The universe in a grain of sand", this seems to demonstrate the one universal patterns throughout creation. As with the macro-universe of orbiting planets and galaxies seeming to mimic the atomic-scale nucleii and orbiting electrons. I see a universe of repeating patterns.

  • TheChungLing
    TheChungLing 5 часов назад

    "It comes down to which theory you prefer"

    No. Just no. Only one theory can be correct, and the best thing you can do right now is consider both interpretations and see which works better. The fact that both theories agree is a sign that both are good candidates, but there must be some point where they will disagree, and once that's figured out, you don't get to choose what to believe.

  • last YT rock
    last YT rock 14 часов назад

    No particles are in a definite position,because of everything is random,when the universe is ended,another random thing will happen,and who knows...

  • Grant Gibson
    Grant Gibson 22 часа назад

    Why "NO". What are the discrepancies between pilot wave and QED>

  • Grant Gibson
    Grant Gibson 22 часа назад

    FOLLOWUP QUESTION : Can Entanglement be explained using this pilot wave theory?

    (p.s. Thanks for uploading. This video made me a little bit happier. If only Einstein had known about this.)

  • Grant Gibson
    Grant Gibson 23 часа назад

    Didn't know about this theory so many thanks for posting.

  • Vatredox
    Vatredox День назад

    I think this silicon oil experiment challenges what I thought I knew about what particles are. I thought that, for example, an electron was just a wave pulse of energy or a "disturbance" in the electron field. But this experiment seems to suggest that the particle of an electron is actually distinct, like a ball on a trampoline rather than the trampoline taking its own shape to make up the clump of wave pulses known as the electron.

    ESGI MUSIC 2 дня назад

    Pilot wave is practical. Copenhagen is dreamy rubbish. You got me thinking however. The particle must be receiving information about all other points on the standing wave to be able to react as it does. What is the velocity of the information transfer and what is it transmitting through. An 'ether'? Could this also explain gravity, not as a curvature of a supposedly empty space (how do you curve 'nothing'), but as planets orbiting in energy wells (or troughs in the wave) caused by the combined vibrational energy of the dominant mass in the system?

  • Blaze Amazing
    Blaze Amazing 3 дня назад

    Personally I have problems with a non-deterministic view of physics. It seems that any time an observation seems random, it's later discovered that it only seemed that way due to a poor or incomplete understanding of the variables involved. A die roll might seem random, but given identical circumstances you can cause it to roll the same result consistantly. Heisenberg uncertainty feels like a comfortable way to explain away imperfect observation.

    It seems when you pair a modern understanding of pilot wave theory with quantum entanglement, gravity as a wave, and leading hypotheses regarding the functionality of the emDrive, I think pilot waves start to make a lot more sense.

  • Sepand Ghanouni
    Sepand Ghanouni 3 дня назад

    The observer effect (which path information) is verified by the eraser component

  • Maker Place
    Maker Place 4 дня назад

    I like the pilet wave

  • Akim Crouch
    Akim Crouch 4 дня назад

    Droplit makes more sense to me

  • forestsoceansmusic
    forestsoceansmusic 5 дней назад

    "If there is any 'uncertainty' it's just due to our ignorance of what's going on, it's not that it doesn't exist." -- I was proposing that as soon as I learned about Heisenberg's "Uncertainty Principle" in senior high school in the early 1970's. (Not saying I was the first, just that at a young age I had the guts to 'swim against the stream', to disagree with the majority.)

  • forestsoceansmusic
    forestsoceansmusic 5 дней назад

    De Broglie was sidelined by the majority who backed the Copenhagen school. So once again objective truth was decided by a show of hands -- how very Stalinist !

  • Rob Lowery
    Rob Lowery 6 дней назад

    the last 30 seconds of the vid was epic. great catch there. it makes me wonder about future computing... hmmm

  • Anna Sekuła
    Anna Sekuła 6 дней назад

    Thank you for this episode! Now it's easier to try to understand (or at least imagine) QM.

  • Yash Pal Goyal
    Yash Pal Goyal 6 дней назад

    Pilot wave theory in my opinion. It lets me understand it better. I think it can be related with the G-waves, or maybe I am wrong,...,I dont know. But ya, I think pilot wave theory is correct.

    • noja83
      noja83 4 дня назад

      Since they are "throwing" electrons around in this experiment, I think it would be waves of the electromagnetic field?

  • Syris of Lemuria
    Syris of Lemuria 7 дней назад

    I think the thing that gives scientists today pause about the pilot wave theory, is that it demands that matter be immersed in, and interact with a medium- and science has vehemently dismissed the presence of a medium since Einstein's Relativity Theory.

  • Ivan Mortimer
    Ivan Mortimer 7 дней назад

    Pilot wave theory makes much more sense to me than the theory of superposition.

  • Michael Pierce
    Michael Pierce 8 дней назад

    So one thing that is interesting to think about: what does a molecule care about. The electron itself or it's corresponding carrier wave.

  • Jeff
    Jeff 9 дней назад +1

    Very interesting. I would vote like this, least to most likely.
    3. Copenhagen interpretation
    2. Pilot Wave theory (but maybe the particle vibrates and causes the waves in space and then interacts instead of space causing the particle to vibrate.
    1. Our universe is a virtual simulation

  • Bruno
    Bruno 9 дней назад

    It could be an explanation for the 2-slit experiment, but what about entanglement?

  • peterspm
    peterspm 9 дней назад

    the pilot wave theory makes more sense than the wave function theory. besides, the double slit expirement was explained using classical physics by, albeit above my intellectual understanding by far.

  • Kai Keeper
    Kai Keeper 12 дней назад

    So does this mean small particles are constantly moving in and out from our universe into higher dimensions? And when it moves into our dimension it creates a wave in which it interacts with?

  • thorbjørn clausen
    thorbjørn clausen 12 дней назад

    Go Copenhagen. Well I do live there...

  • Andrea Salbego
    Andrea Salbego 12 дней назад

    This does not explain how a measuring device changes the result of the the double slit experiment. The whole thing about how measuring changes the waveform

  • BloxyLionTV // bloxyliontv
    BloxyLionTV // bloxyliontv 13 дней назад +1

    The dislikes are those idiots who understand nothing of this,
    Or conspiracy theorists.

  • Brian Fink
    Brian Fink 13 дней назад

    Pilot wave theory.

  • Carl Sagan was here.
    Carl Sagan was here. 13 дней назад

    Does it look like a bitch?

  • Sriramprasath Manivannan
    Sriramprasath Manivannan 13 дней назад

    This sounds like a proper sensible way to understand QM.

  • Mohammed Alhamzi
    Mohammed Alhamzi 14 дней назад

    this theory does not explain the change of electron behaviour when its observed.

  • Stargate Orion
    Stargate Orion 14 дней назад

    A question from a dumb ass....
    How is this important in my world?
    What does this mean?
    So the droplets form a pattern ok
    And how is that fit in my normal world?

  • MarxistKnight
    MarxistKnight 15 дней назад

    I think pilot wave theory is certainly more plausible than Copenhagen.

  • Chanda Gautam
    Chanda Gautam 15 дней назад

    I am in pilot thoery team

  • Yulia Leong Hayworth
    Yulia Leong Hayworth 15 дней назад

    I just wanna thank you for this video, I found the quantum physics quite fascinating, even just a senior designer like me. I've no scientific background and my english is not good at all, so the chinese subtitles does help. Now I have a basic image of what's going on with those quantum moves, thx bro.

  • Ray's Dad
    Ray's Dad 15 дней назад

    Awesome demonstration.

  • A&M Adventures
    A&M Adventures 16 дней назад

    Thanks for this video - as a quantum information theorist, I can say that the community is VERY narrow minded when it comes to this - and most 'experts' will scoff at anything other than the Copenhagen interp.

  • TQ
    TQ 16 дней назад

    Very interesting experiment! I would like to comment on it's connection with the pilot wave theory. In the droplet experiment, the particle interacts with the disturbance created by it in a medium. The particle and the disturbance in the medium are quite distinct things. In the pilot wave theory, the pilot waves are not any disturbance created by the particle, rather it is part of the particle itself, only we choose to give it a different name. So, while in the droplet two-slit expt, the droplet going through a particular slit, interacts with the disturbance passing through both the slits, in the pilot wave theory, the "particle" going through a particular slit, interacts with its own "pilot wave". In other words, the particle going through one slit, interacts with a part of itself which went through the other slit. But this is what we say in the standard interpretation of quantum mechanics, that particle passes through both the slits, and interferes with itself. So, calling one part of the particle "particle" and another part of the same particle "pilot wave", is artificial, and does not provide any advantage.

  • Yoel Calev
    Yoel Calev 16 дней назад

    Don't assume that because this system reproduces SOME results of quantum experiments that it will reproduce all of them. For example, the experiment where a beam splitter "splits a single particle" into 2 probability waves, that can move far away from one another, and yet later interfere with each other, cannot be reproduced on this system: the guiding wave will not survive far from the droplet.
    The problem with the guiding wave interpretation of quantum mechanics is ultimately the fact the particle is redundant - the field is not effected by it, and it alone fully describes the multi-verse, while the particle only says which universe is 'real'.

  • Paulo Torres
    Paulo Torres 17 дней назад

    Can someone tell me at what frequency the speaker is vibrating.

  • Rick C-137
    Rick C-137 17 дней назад

    I wish my teacher showed me this video when I took quantum mechanics!

  • ViTo Channel
    ViTo Channel 18 дней назад

    but does it* (walking droplet theory) explain why the wave function collapses when we make a measurement (the double slit experiment) !!!

  • Ronn B
    Ronn B 18 дней назад

    I like Pilot waves, something I can see, knowing the universe acts similarly as evinced in Mandelbrot set and Julia set fractals.

  • futurestoryteller
    futurestoryteller 18 дней назад

    I'm sensing a profound whiff of Dunning-Kruger in the "this makes so much more sense" camp. Speaking as a non-physicist, if you're also *not* a physicist - of _any_ kind your ability to process, comprehend, juxtapose and evaluate this information is moot.

  • qzamboni
    qzamboni 18 дней назад

    To those wondering, faster than light isn't a problem. It just means particles would interact via pilot waves sent out in the _past._ If the pilot wave generated by a particle has traveled a large distance, and another particle happens by this wave, then the two particles are "instantaneously" communicating.

  • kuy stalheim
    kuy stalheim 20 дней назад

    What is comprehensive?

  • Gabriele Ciravegna
    Gabriele Ciravegna 20 дней назад

    pilot wave all the way!

  • Jonas Amaro
    Jonas Amaro 20 дней назад +1

    This interpretation looks a lot like the gravity being a deflection of space-time fabric. One more kudo for coolness

    No wonder Einstein didn't like Kopenhagen

  • Skroot
    Skroot 21 день назад +1

    It's playing Bohmian Rapsody.

  • Fabio Silveira
    Fabio Silveira 21 день назад

    "These are possible dynamics that could lead to the statistics which are captured in the quantum mechanical theory"

  • Lorrin Barth
    Lorrin Barth 22 дня назад

    I don't like any of the common interpretations. John Cramer's seems to be the most useful. .

  • Fabio Silveira
    Fabio Silveira 22 дня назад

    Trying to explode the like button. This video was fantastic

  • futurestoryteller
    futurestoryteller 22 дня назад

    Oh yeah... I really want to live in a deterministic universe... 😒

    • qzamboni
      qzamboni 18 дней назад

      Deterministic only in the mathematical sense. It's chaos you're dealing with though, so you can never predict everything, only a certain distance into the future before accurate predictions are wiped out by growing errors.

  • Blood money
    Blood money 23 дня назад +1

    No pilot wave is incorrect. ..
    Why does measuring the electrons just creates two lines and not an interference pattern

  • peter sgouros
    peter sgouros 24 дня назад

    does the pilot wave hypotheses imply that there might be a physical limit to the distance between the slits for it to work?

  • P-mtc
    P-mtc 24 дня назад

    Great video! Hi from Croatia. :)

  • Furriosity
    Furriosity 25 дней назад

    If this is the case there must have to have a wave traveling faster than light.

    • qzamboni
      qzamboni 18 дней назад

      Not necessarily, particles can interact via pilot waves generated in the past, which have traveled some distance.

  • benoit debrock
    benoit debrock 26 дней назад

    When first learning about de Broglies experiments and ideas (many years ago) I remember hearing about his pilot wave theory. My then teacher remarked on how wrong even great minds can be... I always kind of liked this idea and felt a bit irritated that he could be so dismissive of such an interesting idea. Glad to hear this old idea is still sparking some renewed thinking about QM!

  • steven stallings
    steven stallings 28 дней назад

    voltage is the standing wave P = Ev^2 / R sin current cos is the real mass-charge motion P = I^2 * R quantum is magnetic polarity and spin direction - there's also weight and charge making the universe even more complex than quantum mechanics

  • giggleherz
    giggleherz 28 дней назад

    Ok I stumbled my way through utube and found myself here cause I love science. I have a question for anyone who cares to think about it. Before the big bang, they say there was a gravity field and they dont know where it came from. What was here before the big bang and where did it come from?

    • Carlos Horatio
      Carlos Horatio 27 дней назад

      Physics in its current state cannot answer what happened within the first few fractions of a second after the big bang; our theories are only applicable at later times when conditions were less "extreme." I'm not sure it makes sense to speak of a time before the big bang.

  • Griffin Bailey
    Griffin Bailey 29 дней назад

    Copenhagen all the way

  • Derk Dicerk
    Derk Dicerk Месяц назад

    What a butchered understanding of physics

  • Unknown Entity
    Unknown Entity Месяц назад

    I don't get what he is saying. Is he suggesting that photons act like particles in that they oscillate like _walkers_ dancing on aquatic cymatics, but on their own waves?

  • David Morrow
    David Morrow Месяц назад

    It boils down to the possibility of GOD or the impossibility of GOD, forget Copenhagen give me the pilot wave theory every time

  • PowerOfTheMirror
    PowerOfTheMirror Месяц назад

    One other interesting fact here is that both the particle and wave in this experiment are made of the same stuff, oil. By analogy, real world particles might be bits of space time that are temporarily separated from the fabric of the universe by some impurity or incompatibility while still interacting with it and trying to reintegrate. So then short lived particles are such configurations that cannot maintain the separation for long. Particle velocity is limited by wave velocity and that in hydrodynamics and electrical systems is limited by the the properties and condition of the material, thus it makes sense that light speed light is determined by electrical and magnetic constants c^2 = 1/(ε0 μ0) i.e properties of space time. So it seems to me this interpretation could explain quantum, relativistic and particle physics effects, or is there a reason this approach was not yet successfully applied along those lines?

  • 09bidon
    09bidon Месяц назад

    An interesting paper with mathematical explanations, "Why bouncing droplets are a pretty good model of quantum mechanics", 2014, R. Brady, R. Anderson, Cambridge :

  • sma94
    sma94 Месяц назад

    Quantum computers are an emerging field based entirely on the principle of superposition.
    So yeah, the entire premise of your video was a dud, bud.

  • Dirk Walker
    Dirk Walker Месяц назад

    I've been pulling my hair out over quantum physics watching countless videos for the last several days. You just made it all make sense in 5 minutes. Thank you. I'm now a die hard pilot wave theory supporter.

  • trollworkout
    trollworkout Месяц назад

    Sexy man

  • Falkdr
    Falkdr Месяц назад

    so, science is a matter of taste, nowadays?

  • Denise Flanagan
    Denise Flanagan Месяц назад

    I was looking into this to see how this phenomenon works w thoughts and their energies and how they get stuck in us when we don't allow the thought or energy of the thought to pass through our mind and heart. So thanks that was cool. I understand a little better.

  • Toggle of Baelgun
    Toggle of Baelgun Месяц назад

    What is the medium that quantum are acting upon to create waves? What is the field and what is it composed of? Could it be bouncing in and out of another dimension?

  • Mazyar Sharifian
    Mazyar Sharifian Месяц назад

    You didn't talk about the part of "Double Slit Experiment" in quantum scale, in which by adding an observer the result changes from interference pattern into two bands. Clearly this experiment shows that the droplets are not duplicating themselves and it's the wave that's guiding them, but how is it possible that when you observe this experiment in quantum scale, the result changes?

  • no po
    no po Месяц назад

    Best veritasium vid so far

  • jens behrendt
    jens behrendt Месяц назад

    not enough info for me atm to decide if pilot-waves are "strong enough" to get far...

  • Homer Inkognito
    Homer Inkognito Месяц назад

    Everything is wave. Ther are no particles. Ask the surfer dude.

  • Anjali Sharma
    Anjali Sharma Месяц назад

    it is very nice idea but it doesnot support when we are ovseiving beceuse they will behave like matter and entanglement also plz see quantum eraser experiment some what like that and sorry for if my comment is wrong and for english because i am in seven class only and like to real like these things also i am also called scientist baba( master or guru) in my school

  • Jonathan Williams
    Jonathan Williams Месяц назад

    I like the idea of randomness but the pilot wave theory makes a lot more sense

  • Bob
    Bob Месяц назад

    Very interesting. This gave insight to me as to the believability of a "aether" or fields of reality/spacetime. Who knows maybe it'll inspire different theories.

    Not that there may be an aether but maybe it could have something to do with the physical world actually interacting with spacetime as it's vehicle of travel. It may help understand Cosmological expansion also.

  • all sounds the same - intelligent music

    Lose the beard

  • Chaz ok?
    Chaz ok? Месяц назад

    Did the chaotic movement of the droplet create the golden mean?

  • Peter Wexler
    Peter Wexler Месяц назад

    WHAT is waving in the quantum world? Yeah, sure, there are waves, but waves of what?

    • Chaz ok?
      Chaz ok? Месяц назад

    • Chaz ok?
      Chaz ok? Месяц назад

      Peter Wexler electrons Quantum fields

  • BariumCobaltNitrog3n
    BariumCobaltNitrog3n Месяц назад

    I saw an airplane flying around in a random way but then it made sense when I saw the pilot wave.

  • David Lloyd-Jones
    David Lloyd-Jones Месяц назад

    deBroglie => de-broy

  • Super Suchti
    Super Suchti Месяц назад

    thta bottle tho "silicone"

  • Juliano Ciaramello
    Juliano Ciaramello Месяц назад

    The whole determinism thing is a big pill to swallow...

  • djan959
    djan959 Месяц назад


  • aaronsdavis
    aaronsdavis Месяц назад

    As long as both theories can exist and compete, we can allow the maths and experiments to guide us, and eventually the correct theory will remain and the incorrect will become a rather long footnote.

  • Benjamin Azmon
    Benjamin Azmon Месяц назад

    I really like this. I always found the Copenhagen interpretation to be unsettling. It felt like accepting something happen because it did rather then understanding the cause.

    DANTE Месяц назад +1

    I don't know which one is better for overall understanding of quantum phenomena. But I, as a 15 year old student, think the pilot wave theory seems to be less ignorant about things that might be going on, and thus I like it better.

  • seavpal
    seavpal Месяц назад

    Pilot wave theories don't account for the existence of nS1 or nD(1/3/5/7/9) atoms... that's a HHHUUUGGGEEE oversight.

  • guillermo Duro Márquez
    guillermo Duro Márquez Месяц назад

    can you make a video about supercritical fluids? thank you very much! keep up with the good work :)

  • Roberto Fontiglia
    Roberto Fontiglia Месяц назад

    But if this is entirely deterministic, how do you, in fact, get the pattern on the other side of the two slits ? Does it not come down simply to slight differences in initial conditions ? This is fundamentally different from quantum theory, wherein even with exactly similar initial conditions, two electrons will still end up in different places on the screen behind ! What I'm saying is that I don't think this experiment truly reproduces the results of the quantum double slit experiment -- to do that, you would have to show that with exactly the same initial conditions, everytime a droplet is sent forward, it will end up at a different place on the screen. If this is truly deterministic, you could theoretically solve for the path of the droplet in advance. If you dropped the droplet in the same spot every time, you would get the same result every time -- that's not what's observed in the actual double slit experiment...

    • Romero mukkolath
      Romero mukkolath Месяц назад

      just leaving my comment here as an anchor , i would like to discuss further.

  • Alena Verhalen
    Alena Verhalen Месяц назад

    What about the delayed choice quantum eraser? How would that phenomenon be explained by the pilot waves?

  • Josh Eastman
    Josh Eastman Месяц назад

    Do you hear Tesla giggling..... He said it best all is vibration

  • Twinrehz
    Twinrehz Месяц назад

    Quantum mechanics be like "do the wave!"

  • Mayur Sandpara
    Mayur Sandpara Месяц назад

    If light is a wave then what can we say to photon?

  • Mahian Ishraq
    Mahian Ishraq Месяц назад

    So if we make two big slits and shoot humans through them what will happen? Will we see some interference fringes?
    Btw this video was amazing! This one's the best video on quantum physics I've ever seen. I hope more from you on quantum physics in the future ;).

  • Ivan Ivanov
    Ivan Ivanov Месяц назад

    Quantum Mechanics - "Back door into our simulation" - Hello, I just had an idea. If we assume that our reality is simulation... then may be The Creator of this simulation left a "back door" into its code. Let's say this is like a "low level" computer language with which "The Creator" can manipulate our reality. This low level language "back door" may be manifesting as what we know as "Quantum Mechanics". So basicly - it is like lower layer of physics laws - something reserved for "System Admins" to manage our reality. May be that is why we can not figure it out. May be this is the "back door" into our reality / simulation. And it also has an anti-crack defense mechanism - like with the "Double Slit Experiment" - when we try to observe and understand it - it changes the result pattern. Just an idea :) ...

  • PaulXPZ
    PaulXPZ Месяц назад

    Was I the only one who got distracted by the house and started wondering how much it cost? The kitchen in particular looked very nice