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[phys.org] An infallible quantum measurement

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physicists in Innsbruck and Geneva realized a new, reliable method to verify entanglement in the laboratory using a minimal number of assumptions about the system and measuring devices. Hence, this method witnesses the presence of useful entanglement.
Quote:
The presented device-independent method is based on a single assumption: "We only have to make sure that we always apply the same set of operations on the quantum objects, and that the operations are independent of each other", explains Julio Barreiro. "However, which operations we apply in detail – this is something we do not need to know." This approach - called Device Independent - allows them to get around several potential sources of error, and subsequently wrong interpretations of the results.
Quote:
"Assumptions are always the Achilles heel – be that for lab data or theory work", stresses Thomas Monz. "We managed to reduce the number of assumption to verify entanglement to a minimum. Our method thus allows for reliable statements about the entanglement in a system."

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This is great. You don't have to know what you're doing, as long as you do it consistently. That's how to make sure you did it right. lachen.gif

These quantums make for the best field of science ever.
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post #2 of 3
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Originally Posted by un-midas touch View Post



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This is great. You don't have to know what you're doing, as long as you do it consistently. That's how to make sure you did it right. lachen.gif

These quantums make for the best field of science ever.

Think that can apply to other fields as well? If my boss tells me to fill out some forms and I light them on fire instead, as long as I burn them every time they cross my desk I'm doing it right?tongue.gif
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post #3 of 3
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Originally Posted by Deadboy90 View Post

Think that can apply to other fields as well? If my boss tells me to fill out some forms and I light them on fire instead, as long as I burn them every time they cross my desk I'm doing it right?tongue.gif

Well the page was filled with fire, and the boss never specified ink so it should work. Just remember the consistency part thumb.gif
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