Have you ever dreamed of being present at two places
at the same time??? Don’t get surprised by this as with the rate by which
technologies are developing this dream will become a reality one day.
Teleportation is a phenomenon in which a beam of an
object or a person is shown in another place by replicating its copy. Quantum
teleportation is somehow different from simple teleportation and in this
technique, two photons are entangled in such a way that if the state of one of
them is altered then there will be alteration in the state of other one
automatically as if they were connected with each other. Thus the information
can be transported from one place to another.
Scientists of Japan
and Australia
have used this technique and made a ‘teleporter’ and a ‘paradoxical cat’ with
the help of which they are able to achieve a new breakthrough in communication
field. The cat term is used to refer to the ‘wave packets’ of light which
represents Schrodinger’s Cat, the famous thought experiment.
Wave packets of light or we can say complex set of
quantum information or quantum states have been successfully teleported from
one place to another without actual transfer of a particle between them.
Actually, a macroscopic beam of light was taken and a quantum
superposition is applied on it and is teleported from one place to another. Superposition
provides power to quantum computers, and in parallel processing, a same thing
needs to be different (like one and zero) at different places.
High fidelity transmission of a large amount of
information like quantum encryption keys with a very high speed is now possible
through communications networks. The greatest distance covered with the help of
this technology is 143 km over the sea stretch which separates two Canary Islands.
In simple terms, the information which is present in
the form of light has been manipulated by destroying it in one spot and
recreating at another place, so that it exists in two places at the same time.
This achievement could pave the way for applying this
technology between ground stations and the satellites. Thus, near future is
coming up with the means of quantum communications applications as its
milestone…
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