Not exact matches
Distance records set for entanglement may pave the way to a quantum version
of the Internet in which information hops from place to place via
pairs of entangled particles.
In the spacecraft's first record - breaking accomplishment, reported June 16 in Science, the satellite used onboard lasers to beam down
pairs of entangled particles, which have eerily linked properties, to two cities in China, where the
particles were captured by telescopes (SN: 8/5/17, p. 14).
According to Susskind and Maldacena, every
pair of entangled particles is connected by a wormhole, drastically shortening the distance between them.
That is because a black hole keeps producing
pairs of entangled particles, which make up so - called Hawking radiation.
To confirm that the
particles were
entangled, and that the weird qualities
of quantum mechanics held, the researchers used the photon
pairs to perform a Bell test (SN: 9/19/15, p. 12), which analyzes correlations between the two
particles.
As Kaiser explains it, an experiment would go something like this: A laboratory setup would consist
of a
particle generator, such as a radioactive atom that spits out
pairs of entangled particles.
Setting ensembles
of solid - state
particles into
entangled pairs holds promise for quantum computation
Physicists know how to create
pairs of entangled photons, sub-atomic light
particles, and have observed them operating in sync between two
of the Canary Islands at a distance
of 143 kilometers.
The idea works this way: In quantum communication, two users directly share
pairs of particles in a so - called
entangled state, meaning their quantum properties are linked.
For the most part,
entangled particles are like a
pair of carefully boxed mail - order coins with the same (random) side up.