Adiabatic Quantum Computing from Google

quantum annealing processor chip D-Wave

The adiabatic quantum computing model uses the method of annealing processing.

Google reported a combination of techniques that may lead to promising results in developing the first quantum computer. The model is called adiabatic quantum computing.

The method was published in a scientific journal and was the result of the collaboration between Google researchers and academic institutions.

The engineers combined the model of quantum computing with the quantum annealing theory.

Quantum features are highly valued as they are expected to improve performance and efficiency in computing.

The difference between the traditional approach and the quantum one is that standard computers use 1s and 0s to represent data, while superposition involves qubits that can be both 0 and 1 at the same time.

A qubit represents a unit of quantum information, just as the bit is the traditional unit of information.

IBM is another company that recently announced the development of a five-qubit processor. The product will be available via the cloud.

IBM’s engineers used the gate model and liked together qubits in order to form circuits. The advantage of the method is that includes error correction.

Quantum annealing, on the other hand, is focused on finding and preserving the lowest level of energy in the dynamic quantum system.

Google managed to improve the quantum annealing model and add the error-correction abilities that came with the gate approach.

“The crucial advantage for the future is that this digital implementation is fully compatible with known quantum error correction techniques, and can, therefore, be protected from the effects of noise,” said one of Google’s quantum electronics engineers.

They tested the new system by using a nine qubits simulation, in which each qubit is laterally linked and individually manipulated.

One of the challenges of the project was to control the resonance frequencies of qubits by short current pulses. The engineers managed to manipulate the frequencies inside the simulated environment, and even to make qubits sync their frequencies.

Scientists say that the exchange of quantum information between qubits resembles a relay race, where one qubit transfers the information to another while minimizing the distance between them.

There is a high chance for the adiabatic quantum computing to be used in the development of any type of quantum computer.

Scientists say that this new model of digital quantum computing allows them to construct arbitrary interactions with error correction ability while preserving the problem-specific feature.

Image Source: Wikipedia