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arcosapphire t1_j298x64 wrote

That hardly explained it at all, given the apparent violation of the uncertainty principle.

However the only clue I did find is in this sentence:

> Researchers say they were pleasantly surprised to discover their innovative device was able to observe the presence of a photosensitive object without irreversible photon absorption or causing quantum coherence to collapse.

Without irreversible photon absorption. Not "without photon absorption" as the article earlier implies.

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Folknasty t1_j29r1no wrote

So, do you think that the object measured does have the capable to re-emit those photons? That phrasing is a bit confusing, but it seems like they're saying that normally for objects to be observed without direct interaction, the object would have to absorb the energy, and not re-emit it so we'd get a measurable.

They're saying the object measured has the capability to re-emit this energy, so it's more along the lines that they're preventing the re-emmittance (with the super conductors maybe?), and now measuring the energy lost from absorbance?

Wish they'd give some experimental details to clarify this. Otherwise it just seems like the author made up some exciting headline for clicks.

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arcosapphire t1_j29rvk6 wrote

I don't know what to think since there's no detail here.

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Superunkown781 t1_j29yire wrote

I don't understand any of it, my brain farted and now all I want to do is eat chocolate

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Widespreaddd t1_j2b4o9y wrote

Nice job noting the distinction. “Just give the photon back, we didn’t detect nuttin’”

Edit: photon

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niconiconicnic0 t1_j2bi92y wrote

>We show that it is possible to ascertain the presence of a microwave pulse resonant with the second transition of the transmon, while at the same time avoid exciting the device onto the third level. Experimentally, this is done by using a series of Ramsey microwave pulses coupled into the first transition and monitoring the ground-state population.

from the paper

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