Scientists have figured out how to create a full-fledged quantum computer


Ученые выяснили, как можно создать полноценный квантовый компьютерQubits are much more sensitive to various interference in the transmission of data than the transistors.

Researchers from Australia have discovered how you can create a full-fledged quantum computer of the plurality of qubits inside a miniature silicon chip.

Engineers from the University of New South Wales has reworked the design of modern silicon microprocessors and invented a new form of architecture that uses standard semiconductors to perform quantum computing.

Quantum computers work on a completely different principle, not as the classical computers, where all information is encoded by a sequence of bits with the value 1 or 0. The smallest element for storing information in quantum computer is called qubit, and, unlike a bat, he can be in any superposition state. Thus, a quantum bit can take infinitely many values. In theory this should significantly increase the speed of calculations.

Qubits are much more sensitive to various interference in the transmission of data than transistors or memory cells. Them extremely difficult to join in a chain and connected to the tire data. In fact, every qubit and the communication system it must be set up individually, which is not possible to produce them industrially. Australian physicists have managed to circumvent this obstacle, “glue” each qubit with a small set of conventional transistors and so-called “floating gates”.

“Creating a microprocessor chip with a billion transistors integrated working working together harmoniously, like a Symphony is an impressive achievement. With quantum computing we are on the threshold of another technological leap, which can be as deep and transformative as the advent of the first silicon chip,” says one of the authors, head of the UNSW faculty of production Andrew Dzurak.

As noted by the authors, the new architecture includes several conventional transistors, which control the operation of a giant two-dimensional grid of qubits, using almost the same principles and protocols that are used today in conventional computer memory.

“Choosing electrodes on the qubit, we can control the rotation of a qubit that stores quantum binary code is 0 or 1. But choosing electrodes between qubits, we can perform dvuhmestnye logical interaction or computing” — say the authors.


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