Scientists have
been able to teleport a qutrit, or a piece of quantum information based on
three states, opening new possibilities for quantum computing and
communication.
Quantum
teleportation have only been managed with qutrits, albeit over long distances. A new concept of study suggests that future quantum
networks will be able to carry much more data with less interference than
previously thought.
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| Star Trek discovery teleportation. |
To understand
more, in classical computing. A bit can be in one state, either 1 or 0 but in quantum
computing, a bit can be both 0 and 1 at the same time. Also known as
superposition.
Now, the qutrit has the same relationship to
the trit, adding superposition to classical states that can be represented as
0, 1 and 2. A qutrit can be all of these at the same time, making it another
milestone in terms of computer processing power and also adds complexity for researchers.
Unlike the
sci-fi teleportation, Quantum teleportation is instantly obtaining data from
one place based on another reading somewhere else, potentially a long distance
by the use of a phenomenon known as quantum entanglement or spooky action as
Albert Einstein called it.
By splitting
the path of a photon up into three parts very close to each other, via
carefully calibrated setup lasers, beam splitters and barium borate crystals,
the researchers were able to create their qutrit and produce state of
entanglement.
Over a measurement
of 12 states or entanglements, the system produces a fidelity of 0.75 – an accurate
result three-quarters of the time.
“We expect
that our results will pave way for quantum technology applications in higher
dimensions since teleportation plays a central role in quantum repeater’s and
networks.”
The research
has been accepted for publication in Physical Review Letters.
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