Part of the quantum computer at the University of Innsbruck, in which researchers simulated using Qutrits and Ququints. Credit: C. Loomner/University of Innsbruck
The quantum computing has always included an account with Qubits – quantum organisms that can take the value of “0” or “1”, such as regular computer parts, but can also be in a set of 0 and 1 groups. Now researchers produce the first applications of “Qudits”: units of information that provide groups of three or more cases.
In a paper published on March 25 in Nature Physics1Physicists describe how they used “Qutrits” and “Ququints” -qudits with three and five cases in a row-to simulate how high-energy quantum molecules interact through the electromagnetic field. The work follows the result published in Physical review messages (PR) In September2 Which is closed the behavior of another quantitative field, which is a strong nuclear force, using Qutrits.
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Such simulation of quantum fields is seen as one of the most promising applications for quantum computers, because these machines can predict phenomena in particles or chemical reactions that exceed the capabilities of regular computers that are calculated. Crystin Moscik, the theoretical capital, says a participating author Nature Physics A paper that was also a pioneer such simulation with Qubits in 20163 Along with colleagues at the University of Innsbruck, Austria. “If I can return in time to my old myself, I will tell her: Why are time getting lost with Qubits?” Mosschic, who is now at the University of Waterloo, Canada.
“This Qudit’s approach is not a solution to everything, but it helps you when it is suitable for the problem,” says Martin Rengour, a experimental physicist at Innsbruck University and the main author of the paper.
In general, Qudits can help make a more efficient and less vulnerable computers accounts, at least on paper. Using Qudits, each former Qubit coding unit – such as besieged ion or photon – can suddenly pack more information, helping machines to increase speed. But the tactic is less mature than the Qubits methods, and the devil can be in detail. “Qudits is also more complicated to work with it,” says Benjamin Brock, a experimental physicist at Yale University in New Haven, Connecticut.
System modifications
In most types of quantum computer, the Qubits used by researchers are two potential cases of a system that will have many cases normally. So it can also host this system. “The current Qubit processors such as IBM and Google processors can already be operated as a minor adjustments to work as a high -dimensional,” says Machiel Blok, a physicist at the University of Rochester, New York. (Blok and his team experiments in their laboratory, where the superconducts encrypted Qudits up to 12 levels4))
The quantum computing approach uses individual molecules such as Qubits for the first time
To simulate the quantum field, authors PRL Cherent paper on the connected quantity chip provided by IBM for researchers, usually used as a quit. Ringbauer and Muschik and their colleagues use enthusiastic cases of calcium ions to represent Quints from five levels. Muchik says that Ququint is a natural way to represent a field that can be in the lowest energy (of 0) or has positive or negative values from −2 to +2 at any time in space.