Long Distance Entanglements wins Nobel Prize (physics, satellite, universal, security)
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I was disappointed that the validation immediately takes us to encrypted messaging, but I suppose that is how people think. Secrets, secrets, spies, and more secrets.
''What the work shows is “parts of the universe — even those at great distances from each other — are connected,” said Johns Hopkins physicist N. Peter Armitage. “This is something so unintuitive and something so at odds with how we feel the world ‘should’ be.” ''
I didn't know a satellite was able to send entanglement particles. That's amazing.
From another article it said it was Snowden that disclosed in 2013 how the US was spying on the internet that made China look into developing a way to prevent that.
National security for any nation is about being able to keep secrets. With entanglement there is no currently known way to spy on the matching particles. The sending and receiver are communicating without any known active energy occurring between them. Making it impossible to tap into- there's nothing happening between the particles!
That we know of right now. But they eventually find what is happening and find there is a link of some sort, that hasn't been discovered yet.
What I want to know is if nature is doing this somewhere? Is the sun, or stars, sending 'messages' in their particles to distance locations? Maybe even across the galaxy or universe? Would this be a way to communicate instantly between galaxies?
I was disappointed that the validation immediately takes us to encrypted messaging, but I suppose that is how people think. Secrets, secrets, spies, and more secrets.
It's important, if not essential, for the economy to keep financial transactions secure. Everything else depends on having financial exchanges be reliable and safe from attack or theft. Hopefully, entanglement will be a key element of that. Without secure exchanges, the economy can collapse and there's no money for doing these types of experiments.
Meanwhile, I haven't seen a good explanation for why particles become entangled. Is this something we'll eventually understand? Is every particle constantly entangled, or is it an intermittent behavior?
So, is this as way for superluminal communication?
Yes. Quantum entanglement appears to defy the universal speed limit. It's why Einstein called it spooky action at a distance.
But in order to put together a superluminal communications system across vast distances, it would be necessary to first entangle two particles, then separate them, and finally transport one of them to a far distant place, such as a Mars colony, while keeping the other local, such as Geneva, Switzerland. But the technology for preserving and reliably manipulating widely separated quantum entangled particles might still need to be worked out.
Yes. Quantum entanglement appears to defy the universal speed limit. It's why Einstein called it spooky action at a distance.
But in order to put together a superluminal communications system across vast distances, it would be necessary to first entangle two particles, then separate them, and finally transport one of them to a far distant place, such as a Mars colony, while keeping the other local, such as Geneva, Switzerland. But the technology for preserving and reliably manipulating widely separated quantum entangled particles might still need to be worked out.
I hope you're right, superluminal communication sounds great to me... The only way to allow instant communication between Earth and a future human colony in another star system...
I hope you're right, superluminal communication sounds great to me... The only way to allow instant communication between Earth and a future human colony in another star system...
To simplify it extremely, quantum entanglement communications is two cups and a string. The string is as long as it needs to be, but the cup at the other end needs to get to said human colony in another star system.
There's no current technology to get humanity to another star system. Assuming that we did have such technology that could keep a colonizing space ark under constant acceleration at 1G over stellar distances, while keeping the colonists and their domesticated fauna and flora alive, travel to Alpha Centauri would take 5 years from the Earth's viewpoint (probably less from the colonists' viewpoint).
So, is this as way for superluminal communication?
Quote:
Originally Posted by djmilf
Yes. Quantum entanglement appears to defy the universal speed limit. It's why Einstein called it spooky action at a distance.
Quote:
Originally Posted by MalaMan
I hope you're right, superluminal communication sounds great to me... The only way to allow instant communication between Earth and a future human colony in another star system...
And....
I'm wrong.
Per the YouTube video below, quantum entanglement can't be used for superluminal (faster-than-light) communications. Right about the 11:30 mark, the narrator points out that QE requires inherent randomness in order to work, so that it's impossible to use it for instantaneous communications.
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