Does quantum entanglement violate relativity?

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Ever since the implications of quantum entanglement between particles became unavoidable for physicists and cosmologists, the doubt of the accuracy or completeness of Einstein’s general and special theory of relativity became real… Einstein himself called quantum entanglement “spooky action at a distance” because the possibility of faster than speed of light transfer of information between two entangled particles (no matter what distance between them) would violate relativity and the fundamentals of one of the most successful theories in science…

Recently, however, several experiments have confirmed that entanglement is not only real but it seems to violate relativity.

The results of the first experiment have provided the speed of entanglement, which was measured to be at least 10.000 times faster than the speed of light. here

In the second experiment scientists have been able to send data via quantum entanglement at 1200 km distance. Next OP will be on this theme…

Quantum entanglement is a phenomenon in quantum physics where 2 particles, like photons or electrons, become entangled, or their quantum state, or properties, became interdependent. Any change to the property of one entangled particle instantaneously (or faster than speed of light) affects the other. Einstein believed that the exchange of information at the speed faster than speed of light would create paradoxes, such as sending information to the past. That was one of the reasons Einstein and many other physicists have rejected quantum mechanics as either incomplete or false. And yet, up until today, no experiment has ever contradicted any of the predictions of QM.

As the experiments clearly show, the speed of entanglement is at least 10.000 faster than the speed of light and if that is the case, then entanglement violates relativity, as quantum information about the quantum state of one entangled particle instantaneously affects the other entangled particle…

So, if that is true, as it clearly appears to be, why didn’t we hear about it on the News?

What I would like to do with this OP is to get everyone involved to state their opinion or provide facts why these news have not been widely spread or accepted…

As most of you probably suspect, I have my own theory about it…Yes, just a theory…for now… 😉

BTW: I love quantum mechanics…
Just like Steven Weinberg once said: <strong><i>”Once you learn quantum mechanics you are really never the same again…”

501 thoughts on “Does quantum entanglement violate relativity?”

  1. And:

    Finally, note that all of those problems vanish when you adopt the “missing information” view of entropy.

    Distinguishability is observer-dependent, macrostates are observer-dependent, missing information is observer-dependent, and entropy is observer-dependent.

    It also nicely solves DNA_Jock’s puzzle for Sal:

    Let’s repeat this experiment a million times, but with balls that are dark red and light red. But in each of the experiments, we vary the hue of the balls ever so slightly.

    The entropy of mixing does not change at all, it is always 10.85 J/K, except when the balls are exactly the same color. At this one moment, the entropy of mixing suddenly jumps to ZERO.

    The question I have been asking you repeatedly, and you have (as usual) not even tried to answer, is WHY is this the case under your “spreading” definition? WHY is there this sudden plummet in the mixing entropy when we go from red balls with ever-so-slightly darker red balls to indistinguishable balls. You’ll notice that it follows automatically from keiths’s definition. Your definition seems sadly lacking in this regard.

    And note that the entropy doesn’t vanish only when the hues are exactly the same. It also vanishes when the hues are too close to be distinguished by the observer in question. That can vary from observer to observer.

    To take an extreme case, a blind observer (who detects the balls by means other than vision) won’t be able to distinguish them regardless of hue. To such an observer, the entropy of the system never increases.

    The underlying physics is always the same. Any physical energy dispersal is always the same. The differences are in distinguishability, and distinguishability is observer-relative.

    Entropy is a measure of missing information, not of energy dispersal.

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