Epr Quotes

Under the microscope of quantum attention function we can explain EPR paradox, bell inequalities, W and GHZ state, quantum entanglement, decoherence, nonlocality, and quantum correlations in a coherent manner.

Later Michel went up to the priest as he was packing away the tools of the trade. “I was very interested in what you were saying earlier…” The man of God smiled urbanely, then Michel began to talk about the Aspect experiments and the EPR paradox: how two particle, once united, are forever and inseparable whole, “which seems pretty much in keeping with what you were saying about one flesh.” The priest’s smile froze slightly. “What I’m trying to say, “Michel went on enthusiastically, “is that from an ontological point of view, the pair can be assigned a single vector in Hilbert space. Do you see what I mean?

The resulting four-page paper, published in May 1935 and known by the initials of its authors as the EPR paper, was the most important paper Einstein would write after moving to America. “Can the Quantum-Mechanical Description of Physical Reality Be Regarded as Complete?” they asked in their title.

Einstein and his colleagues made the perfectly reasonable assumption of locality: that the properties of a particle are localized on that particle, and what happens here can’t affect what happens there without some way of transmitting the effects across the intervening space. It seems so self-evident that it hardly appears to be an assumption at all. But this locality is just what quantum entanglement undermines – which is why ‘spooky action at a distance’ is precisely the wrong way to look at it. We can’t regard particle A and particle B in the EPR experiment as separate entities, even though they are separated in space. As far as quantum mechanics is concerned, entanglement makes them both parts of a single object. Or to put it another way, the spin of particle A is not located solely on A in the way that the redness of a cricket ball is located on the cricket ball. In quantum mechanics, properties can be non-local. Only if we accept Einstein’s assumption of locality do we need to tell the story in terms of a measurement on particle A ‘influencing’ the spin of particle B. Quantum non-locality is the alternative to that view.

The scientific (not to mention philosophical and metaphysical) implications are astounding. Let's say some of the atoms in your body originally formed in an entangled manner with other particles soon after the big bang. Since then, both have been flying apart, and now they are separated by billions of light-years. Your atoms make up pieces of your brain, which is physically located in Peoria. Those other particles have become of an alien on a planet in the fashionable Aldebaran system. Right now, some creature there is observing your twin's atoms in a lab. Bingo, they collapse to exhibit specific properties. Instantly, with no delay whatsoever, your own brain's atoms know this is happening five billion light-years away, and they, too, collapse into complementary objects. The effect is sudden and alters your thought processes, and you make a snap decision. You show up at your boss's party wearing an embarrassing, polka-dot tuxedo. You can't explain why you acted so oddly, but your life is ruined. This seems like science fiction, but EPR correlations are real. First it means that the entire universe is a single entity in some fundamental way. It means there are no secrets between locations here and those far away, no matter how distant–and that the information "exchange" happens simultaneously, at infinite speed.

As soon as you realize that quantum mechanics is about the mind-matter interface, all of its mysteriousness vanishes. Its properties are exactly what you would expect where mind is more important than matter. Heisenberg’s uncertainty principle, Pauli’s Exclusion principle, Bell’s inequality, non-localism, particles being in two places at one, wave-particle duality, particles taking all paths to reach their destination, the EPR paradox – all of these are about THE MIND. None of these can be explained in terms of deterministic, classical particles. Materialism has died, but the materialists haven’t realized it. They’re still locked into their Meta Paradigm.

Los objetos físicos no son cosas en sí (y esto vale también para las estrellas y las galaxias), sino cosas con respecto a ciertos modos de indagación empírica. Como decía Niels Bohr, la física no trata de la naturaleza, sino de nuestras relaciones con la naturaleza. El universo, lejos de ser un conjunto de objetos, es una red de percepciones. Todo está conectado con todo, nos dice el teorema de interconexión de Bell. La paradoja EPR (Einstein-Podolsky-Rosen) sugiere que la idea de la separabilidad debe revisarse. Las partículas no pueden, no saben, llevar una existencia independiente. Si algún día estuvieron en contacto, conservarán para siempre la memoria de ese encuentro. Los fenómenos, como los dioses, son locales, pero la totalidad no lo es, y esa conexión con la totalidad parece estar presente en todo momento.

All the uncertainty is gone. I feel like myself again. I lose myself in the plan. I’m going to need tools. A quantum pyramid scheme. A pair of physical bodies, a nugget of computronium, a bunch of entangled EPR pairs and a few very special hydrogen bombs …