/Quantum Computing Breakthrough – Scientists Created Quantum Gates Using Qudits (via Qpute.com)
Quantum Computing Breakthrough - Scientists Created Quantum Gates Using Qudits

Quantum Computing Breakthrough – Scientists Created Quantum Gates Using Qudits (via Qpute.com)

In quantum computing, a qubit  (short for a quantum bit) is the fundamental unit of quantum information. Quantum information is the quantum variant of the simple binary bit physically accomplished with two-state equipment. Now, scientists created quantum gates using qudits.

Qubits are the basics of quantum computing

Just as the basic unit for the old, typical computing is a bit, the basic unit for quantum computing is a qubit. One bit consists of an arbitrary binary variable that is either 0 or 1 with identical probability. By joining bits together, one can deal with a substantial amount of information.

Qubits cannot consist only of either 0 or 1. They can be both at the same time; they can be neither or be either. This fact alone leads to boost the processing capability of a computer. Qubits further need a basic unit for their logic gates. The logic gate usually performs logical operations in a computing system.

A con of qubits would be that they are not so stable. Thus the creation of a system to contain them is very hard. IBM succeeded in creating the first commercial quantum computer this year, but it has a capacity of only 20 qubits. The number is so small that our traditional computers are much quicker than IBM’s quantum computer.

Scientists created quantum gates using qudits, not qubits

As of recently, researchers from Purdue University claimed that they have succeeded in creating the first quantum gates which can incorporate qudits. Yes, you read that right – qudits and not qubits. They have printed their invention in the Quantum Information journal. The device might pave the way to the new age of quantum computing.

That is revolutionary about the qudits is that they can exist in larger states than the bits and qubits. The qudits can be 0, 1 or/and 2; the higher the number of states, the more powerful the processing capability. This only means that you need a small number of qudits to handle information than you would have required of qubits.

The research team discovered that four qudits had the same power as 20 qubits. What’s more, the qudits were more stable than the qubits. As far as we all can see, the contest between qubits and qudits was, at this point, won by qudits – qudits 1, qubits 0.

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