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Entangled Time

entanglement computing photon

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#1
Hyndal_Halcyon

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Entangled Time

 

 

 

First, they created an entangled pair of photons, '1-2' (step I in the diagram below). Soon after, they measured the polarisation of photon 1 (a property describing the direction of light's oscillation) – thus 'killing' it (step II).

 

Photon 2 was sent on a wild goose chase while a new entangled pair, '3-4', was created (step III). Photon 3 was then measured along with the itinerant photon 2 in such a way that the entanglement relation was 'swapped' from the old pairs ('1-2' and '3-4') onto the new '2-3' combo (step IV).
 
Some time later (step V), the polarisation of the lone survivor, photon 4, is measured, and the results are compared with those of the long-dead photon 1 (back at step II).

 

The upshot? The data revealed the existence of quantum correlations between 'temporally nonlocal' photons 1 and 4. That is, entanglement can occur across two quantum systems that never coexisted.

 

Basically, entanglement of particles can survive indefinitely, so long as the system doing the measuring remains intact. 

 

What could be the applications of this technique?


As you can see, I'm a huge nerd who'd rather write about how we can become a Type V civilization instead of study for my final exams (gotta fix that).

But to put an end to this topic, might I say that the one and only greatest future achievement of humankind is when it finally becomes posthumankind.


#2
Mr.posthuman

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It can allow faster than light communication and computation into the past thus making it infinitly powerful , time travel

#3
Mr.posthuman

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What about measuring light photon in a vacuum as we know its speed so we can know it position 100 % .it could create quantum computer without errors

#4
Hyndal_Halcyon

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Why do you think so? Its not faster than light, but it's a way of communicating with the past and the future. Also, I only thought this can be used to make a quantum computer that stores memory elsewhen.

As you can see, I'm a huge nerd who'd rather write about how we can become a Type V civilization instead of study for my final exams (gotta fix that).

But to put an end to this topic, might I say that the one and only greatest future achievement of humankind is when it finally becomes posthumankind.


#5
Mr.posthuman

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Hyndal_Halcyon It can allow faster than light computing in the past which theorically make it infinitly powerful, just imagine





Also tagged with one or more of these keywords: entanglement, computing, photon

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