Subject: NASA scientists achieve long-distance 'quantum teleportation'
over 27 miles for the first time – paving the way for unhackable
networks that transfer data faster than the speed of light
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I am sharing the below news article:
News Article: NASA scientists achieve long-distance 'quantum
teleportation' over 27 miles for the first time – paving the way for
unhackable networks that transfer data faster than the speed of light
Author: JOE PINKSTONE FOR MAILONLINE
Date Published: 22 December 2020
Link:
https://urldefense.proofpoint.com/v2/url?u=https-3A__www.dailymail.co.uk_sciencetech_article-2D9078855_NASA-2Dscientists-2Dachieve-2Dlong-2Ddistance-2Dquantum-2Dteleportation-2Dtime.html&d=DwIDaQ&c=gRgGjJ3BkIsb5y6s49QqsA&r=gd8BzeSQcySVxr0gDWSEbN-P-pgDXkdyCtaMqdCgPPdW1cyL5RIpaIYrCn8C5x2A&m=b697q52k_fnJQQM1H8n4XnE7_Vl7dj78PfK32dhEQto&s=o0iEwKiHOUH-2TFeS7nFnF35eVa3R0FDd0FHTM62mzk&e=
Publisher: MailOnline UK
Synopis:
- Scientists built a 27-mile long prototype quantum internet in the US
- They successfully used quantum entanglement to teleport signals
instantly
- The phenomenon sees qubits, the quantum equivalent of computer bits,
pair up and respond instantly
Scientists have demonstrated long-distance 'quantum teleportation' – the
instant transfer of units of quantum information known as qubits – for
the first time.
The qubits were transferred faster than the speed of light over a
distance of 27 miles, laying the foundations for a quantum internet
service, which could one day revolutionise computing.
Quantum communication systems are faster and more secure than regular
networks because they use photons rather than computer code, which can
be hacked.
But their development relies on cutting-edge scientific theory which
transforms our understanding of how computers work.
In a quantum internet, information stored in qubits (the quantum
equivalent of computer bits) is shuttled, or 'teleported', over long
distances through entanglement.
Entanglement is a phenomenon whereby two particles are linked in such a
way that information shared with one is shared with the other at exactly
the same time.
This means that the quantum state of each particle is dependent on the
state of the other – even when they are separated by a large distance.
Quantum teleportation, therefore, is the transfer of quantum states from
one location to the other.
However, it is highly sensitive to environmental interference that can
easily disrupt the quality or 'fidelity' of teleportation, so proving
the theory in practice has been technologically challenging.
In their latest experiment, researchers from Caltech, NASA, and Fermilab
(Fermi National Accelerator Laboratory) built a unique system between
two labs separated by 27 miles (44km).
The system comprises three nodes which interact with one another to
trigger a sequence of qubits, which pass a signal from one place to the
other instantly.
The 'teleportation' is instant, occurring faster than the speed of
light, and the researchers reported a fidelity of more than 90 percent,
according to the new study, published in PRX Quantum.
Fidelity is used to measure how close the resulting qubit signal is to
the original message that was sent.
'This high fidelity is important especially in the case of quantum
networks designed to connect advanced quantum devices, including quantum
sensors,' explains Professor Maria Spiropulu from Caltech.
The findings of the project are crucial to hopes of a future quantum
internet as well as pushing the boundaries of what scientists known
about the quantum realm.
Although the technology is yet to reach the point of being rolled out
beyond sophisticated tests such as this, there are already plans for how
policy makers will employ the technology.
For example, the US Department of Energy hopes to erect a quantum
network between its laboratories across the states.
The power of a quantum computer running on quantum internet will likely
exceed the speeds of the world's current most sophisticated
supercomputers by around 100 trillion times.
'People on social media are asking if they should sign up for a quantum
internet provider (jokingly of course),' Professor Spiropulu told
Motherboard.
'We need (a lot) more R&D work.'
WHAT IS QUANTUM ENTANGLEMENT?
In quantum physics, entangled particles remain connected so that actions
performed by one affects the behaviour of the other, even if they are
separated by huge distances.
This means if you measure, 'up' for the spin of one photon from an
entangled pair, the spin of the other, measured an instant later, will
be 'down' - even if the two are on opposite sides of the world.
Entanglement takes place when a part of particles interact physically.
For instance, a laser beam fired through a certain type of crystal can
cause individual light particles to be split into pairs of entangled
photons.
The theory that so riled Einstein is also referred to as 'spooky action
at a distance'.
Einstein wasn't happy with theory, because it suggested that information
could travel faster than light.
Mr. Turritopsis Dohrnii Teo En Ming, 42 years old as of 23rd December
2020 Wednesday, is a TARGETED INDIVIDUAL (TI) living in Singapore. He is
an IT Consultant with a System Integrator (SI)/computer firm in
Singapore. He is an IT enthusiast.
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The Gospel for all Targeted Individuals (TIs):
[The New York Times] Microwave Weapons Are Prime Suspect in Ills of
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Link:
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Singaporean Targeted Individual Mr. Turritopsis Dohrnii Teo En Ming's
Academic
Qualifications as at 14 Feb 2019 and refugee seeking attempts at the
United Nations Refugee Agency Bangkok (21 Mar 2017), in Taiwan (5 Aug
2019) and Australia (25 Dec 2019 to 9 Jan 2020):
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