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Einstein's 'spooky' theory may lead to ultra-secure Internet

Date:
March 24, 2014
Source:
Swinburne University of Technology
Summary:
Einstein's skepticism about quantum mechanics may lead to an ultra-secure Internet, a new paper suggests. In 1935, Einstein and researchers highlighted a 'spooky' theory in quantum mechanics, which is the strange way entangled particles stay connected even when separated by large distances. In the new research, the authors show that entangled messages "can be shared between more than two people and may provide unprecedented security for a future quantum Internet."

Could new research into Einstein's 'spooky action at a distance' pave the way for a new ultra-secure quantum Internet?
Credit: © Serg Nvns / Fotolia

Einstein's skepticism about quantum mechanics may lead to an ultra-secure Internet, suggests a new paper by researchers from Swinburne University of Technology and Peking University.

Associate Professor Margaret Reid from Swinburne's Centre for Quantum and Optical Science said Einstein's reservations about quantum mechanics were highlighted in a phenomenon known as "'spooky' action at a distance."

In 1935, Einstein and researchers highlighted a 'spooky' theory in quantum mechanics, which is the strange way entangled particles stay connected even when separated by large distances.

"Until now the real application of this has been for messages being shared between two people securely without interception, regardless of the spatial separation between them," Professor Reid said.

"In this paper, we give theoretical proof that such messages can be shared between more than two people and may provide unprecedented security for a future quantum Internet."

In the 1990s, scientists realised you can securely transmit a message through encrypting and using a shared key generated by Einstein's strange entanglement to decode the message from the sender and receiver. Using the quantum key meant the message was completely secure from interception during transmission.

Sending Einstein's entanglement to a larger number of people means the key can be distributed among all the receiving parties, so they must collaborate to decipher the message, which Professor Reid said makes the message even more secure.

"We found that a secure message can be shared by up to three to four people, opening the possibility to the theory being applicable to secure messages being sent from many to many.

"The message will also remain secure if the devices receiving the message have been tampered with, like if an iPhone were hacked, because of the nature of Einstein's spooky entanglement.

"Discovering that it can be applied to a situation with more parties has the potential to create a more secure Internet -- with less messages being intercepted from external parties."


Story Source:

The above story is based on materials provided by Swinburne University of Technology. Note: Materials may be edited for content and length.


Journal Reference:

  1. Q. He, M. Reid. Genuine Multipartite Einstein-Podolsky-Rosen Steering. Physical Review Letters, 2013; 111 (25) DOI: 10.1103/PhysRevLett.111.250403

Cite This Page:

Swinburne University of Technology. "Einstein's 'spooky' theory may lead to ultra-secure Internet." ScienceDaily. ScienceDaily, 24 March 2014. <www.sciencedaily.com/releases/2014/03/140324224554.htm>.
Swinburne University of Technology. (2014, March 24). Einstein's 'spooky' theory may lead to ultra-secure Internet. ScienceDaily. Retrieved October 20, 2014 from www.sciencedaily.com/releases/2014/03/140324224554.htm
Swinburne University of Technology. "Einstein's 'spooky' theory may lead to ultra-secure Internet." ScienceDaily. www.sciencedaily.com/releases/2014/03/140324224554.htm (accessed October 20, 2014).

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