'Unhackable' internet breakthrough as scientists develop new quantum teleportation test to prevent 'eavesdropping'

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'Unhackable' internet breakthrough as scientists develop new quantum teleportation test to prevent 'eavesdropping'

Post by Cr6 on Mon Jan 08, 2018 2:53 am

'Unhackable' internet breakthrough as scientists develop new quantum teleportation test to prevent 'eavesdropping'

Study demonstrated how quantum teleportation could be used to test links
Were able to test photon pairs even in conditions that mimicked the real world
Test reveals if particle has made it through or not, to reveal failures at the get go

By Cheyenne Macdonald For Dailymail.com

Published: 23:58 GMT, 5 January 2018 | Updated: 23:58 GMT, 5 January 2018

A new breakthrough in testing Einstein’s ‘spooky action at a distance’ could soon pave the way for ultra-secure quantum communication.

Scientists have been investigating how pairs of photons can be used to form a link across great distances, in a phenomenon known as quantum entanglement.

It could allow for networks that are essentially ‘unhackable’ – but, losing photons through absorption or scattering as they travel could threaten the security of the system.

In new experiments, researchers have demonstrated how quantum teleportation could be used to overcome the problem, to reveal if the light particle has made it through or not, and exclude any failed links at the get go.



A breakthrough in testing Einstein’s ‘spooky action at a distance’ could pave the way for ultra-secure quantum communication. Scientists have been investigating how pairs of photons can be used to form a link across great distances, in quantum entanglement. Artist's impression


The new study from researchers at Griffith University’s Centre for Quantum Dynamics in Australia demonstrates how pairs of photons, or particles of light, can be tested rigorously even in conditions that mimic those outside of the lab.

Entangled photons create what’s known as a quantum link.

In this state, the actions of one affect the behaviour of the other even across great distances.

And, when sent along a communication channel, these could make for secure networks.

In order confirm that photons in different locations demonstrate what’s known as quantum nonlocality, the researchers developed a demanding new test method using quantum teleportation.

‘Failing the test means an eavesdropper might be infiltrating the network,’ said team leader Professor Geoff Pryde.

‘As the length of quantum channel grows, less and less photons successfully pass through the link, because no material is perfectly transparent and absorption and scattering take their toll.

http://www.dailymail.co.uk/sciencetech/article-5240641/Scientists-develop-new-quantum-teleportation-test.html

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Re: 'Unhackable' internet breakthrough as scientists develop new quantum teleportation test to prevent 'eavesdropping'

Post by Lloyd K on Sat Jan 13, 2018 8:25 am

Isn't quantum computing a scam? There are no entangled photons, are there? So how does quantum computing really work?


Last edited by Lloyd K on Sat Jan 13, 2018 3:14 pm; edited 1 time in total

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Re: 'Unhackable' internet breakthrough as scientists develop new quantum teleportation test to prevent 'eavesdropping'

Post by LongtimeAirman on Sat Jan 13, 2018 11:25 am

.
Hi Lloyd, Is quantum computing a scam? We understand photons can be described with spin waves. Given sufficient technology, spin waves should allow many communications schemes. I assume we'll eventually develop a photon based computer.

In Quantum Entanglement and CHSH Bell Tests, Miles shows that the concept of entanglement (or non-locality) is force at a distance and wrong. Quantum computing based on the idea of entanglement is wrong.  

93. Quantum Entanglement. http://milesmathis.com/entang.html A critique of David Z. Albert's new article at Scientific American, and a mechanical explanation of entanglement. 8pp.

94. Quantum Teleportation? http://milesmathis.com/tele.pdf NO. I show that the current interpretation is fudged in at least three major places. 6pp.

95. CHSH Bell Tests. http://milesmathis.com/chsh.pdf Another bold mathematical cheat from the mainstream, done right under your nose. 3pp.
.

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Re: 'Unhackable' internet breakthrough as scientists develop new quantum teleportation test to prevent 'eavesdropping'

Post by Lloyd K on Sat Jan 13, 2018 3:21 pm

Thanks, Airman. I haven't read many of Miles' papers in the QM and Relativity sections. I guess I'll have to check out some of your links there.

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