Author : Tronserve | Wednesday, 15 May 2019

Rigetti, a
quantum computing startup, is supposed to launch a 128-qubit computing system
at some point in 2019, a huge improvement in the quantum arena putting the
field one step closer to achieving quantum advantage and supremacy.

Quantum
advantage is about the moment when a quantum computer can work out hundreds or
thousands of times faster than a normal computer, while quantum supremacy is
achieved once quantum computers are powerful enough to undertake computations
that classical supercomputers cannot perform at all. Developing computing
systems with higher qubits is the backbone of how quantum computing will
achieve both end goals. The field is moving dramatically. In 1998, researchers
at IBM, Oxford, Berkeley, Stanford, and MIT produced a 2-qubit computing
system. By 2018 Google confirmed that it was able to build a 72-qubit computing
system. Rigetti announced it will be going further than that, releasing a
128-qubit system within the year.

For the
layperson, quantum computing still is not a household term. Quantum computing
is a fairly new technology, first introduced in 1982. The underlying
distinction between the computers and computing systems we interact with daily
and quantum computing is the way information is processed on the backend. A
traditional computer relies on a binary system, meaning the computer processes
information using 0’s and 1’s. A bit is the littlest unit of data in a
computer, and all data—the applications that are run, the images that
appear—are translated into bits for the computer to understand and process.

A qubit
takes the idea of a bit of information, that can only exist in one state or
another and can only be processed one bit at one time and complicates it by
making it two-dimensional. Qubits can be processed simultaneously and exist in
several states at exactly the same time. That idea is referred to as
superposition and it implies that qubits can hold a zero, a one, or any
combination of both zero and one at the same time, giving them the potential to
be tremendously faster and more streamlined than binary systems.

This article is originally posted on manufacturing.net

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