6 ms·
It's easier to think these as random number generators seeded with same value, taken six kilometers apart from each other, and then fetching values from them. N
by Ciantic 10y ago
It's easier to think these as random number generators seeded with same value, taken six kilometers apart from each other, and then fetching values from them. No data is transmitted when fetching values from these.
- das3ddddddd 10y agoNo, you're thinking about quantum entanglement.
- Ciantic 10y agoYes, and as others pointed out below, this is essentially entanglement.
- deleted 10y ago[deleted]
- Dylan16807 10y agoThis is an effect that uses entanglement to move the state of one particle to a different particle. You're describing only entanglement, so that's only half the puzzle. And you're describing entanglement in a misleading way. The most important part of entanglement is that you can't model it as two particles sharing secret data. When you touch one, you affect the output of the other. And this happens faster than light. It still looks random on each end, but once you combine the measurements you can see patterns.
- arcticfox 10y agoIs their any layman's physics explanation of how this works? Obviously you can't transmit information, but one particle can affect the other at distance faster than the speed of light? My sense was that quantum physics basically makes sense if you go really small and have an understanding of how the particles interact. But entanglement is weird, because somehow there's also a mechanism for them to interact at distance? (I know, I could try to look it up, but hopefully other people here have the same silly question)
- JanezStupar 10y agoParticles are constantly randomly changing their state. Entangled particles change in tandem. As the GP said - to find out whether a particular change of state was random or a signal, one would need to compare readings from both. Readings cannot be sent faster than the speed of light. Thus preserving causality.
- tvmalsv 10y agoWhile I don't have an explanation for you, you aren't the only one to think it's weird. Einstein called it "spooky action at a distance".
- retox 10y agoAre we witnessing the first steps towards interplanetary turn-based seed driven gaming?!
- jordanbaucke 10y agoI swear I shot that guy!
- snowwrestler 10y agoMaybe!
- johncolanduoni 10y agoYou're thinking of measuring entangled pairs to produce consistent streams of random classical bits. That is not what quantum teleportation is, although both do use EPR pairs. Their experiment is still bound by the speed of light because they are in fact communicating a full, pre-determined quantum state, not random bits.
- ars 10y ago> random number generators seeded with same value That's basically the https://en.wikipedia.org/wiki/Hidden_variable_theory https://en.wikipedia.org/wiki/Hidden_variable_theory
- salamisultan 10y agoNot really. Entanglement isn't anything crazy. It's just a conserved quantity being split among particles during some type of constriction (half-silvered mirror would make the velocities of both deflected particles add up to a straight line for example) The hidden variable theory makes it more complicated than it is. If any type of interference or interaction happens to either of the particles after their initial mirror deflection, the correlation is gone. The complimentary nature of the measured values only applies when the particles remain untouched - thats why news articles a couple years ago were praising the ability to "entangle" particles for such a long distance/time. It's not easy to prevent all interaction. The correlation is really just the undisturbed conservation of some quantity that was divided between the two particles. In any "path" which splits a wave stream into x%/y% chance of trajectory/spin/polarization, etc, there will be an entanglement. All this means is that for every x% that went one way, y% went another, and the total is 100% ( conserved quantity.)