New tech
may lead to unbreachable internet
A new telecommunications technique
which uses quantum technology could lead to the development of unbreacheable
internet communication links, an international research team has claimed. Researchers
from the Universities of Glasgow, Stanford, Tokyo and Würzburg claim they have
implemented a novel tool for a long-distance web telecommunication link which
is impossible for hackers to breach.
Published
in the journal Nature Communications, the technique could also underpin the
creation of a new form of `quantum internet'. Scientists have previously used
the phenomenon of quantum entanglement also known as `spooky action at a
distance' to allow the exchange of information over short distances.
Entanglement
allows particles which are physically separated to share properties for
example, the direction of one electron's spin will be related to the direction
of spin of its entangled partner.
This
process of entanglement also allows scientists to encode information in quantum
particles, similar to the way in which the ones and zeroes (known as bits) of
digital communication are used to encode all kinds of data.
Two
computers sharing quantum information are much more secure, as any interception
by a third party will change the properties of the data itself, allowing easy
detection by the intended recipient.
The
team, co-ordinated by University of Glasgow postdoctoral research fellow
Chandra Mouli Natarajan, together with colleagues at Stanford, managed to
create long distance telecommunications link for a stationary quantum bit for
the first time.
“The
physics behind quantum communication, by their very nature, make data transfer
utterly secure any tampering with either side of the communication will be
immediately apparent because it will affect the quantum correlations,“
Natarajan said.
“Our
work is an important step towards creating architectures for the future hybrid
quantum internet.“
Prof
Robert Hadfield's group in the School of Engineering at the University of
Glasgow provided key technical expertise in advanced single photon detector
technology in the telecom band.
Source | Mumbai Mirror | 26 November
2015
Regards
Pralhad
Jadhav
Khaitan & Co
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