Thursday, August 11, 2022

Scientists create quantum computers that don’t use binary systems

Computers as we know them today are based on binary information: they operate on one’s and zero’s, storing more complex information in bits that are either on or off. This seemingly simple system is inside every computer we use.

Quantum computers have adopted the same system. They use qubits, which replicate the bits of a classical computer, but use quantum technology.

But they are built with more than just those and zeros. Quantum computers aren’t necessarily limited to binaries, and scientists hope that releasing them from that system could add additional complexity without using more quantum particles.

Now scientists say they have managed to create a quantum computer that works just like this. It can calculate not with qubits, but with qudits, quantum digits that could enable a lot of computing power.

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Most quantum computers have access to more quantum states than are actually used when performing calculations. In the new study, scientists at the University of Innsbruck used a computer that stores information in trapped calcium atoms that can exist in eight different states, for example, but of which only two are commonly used. goes.

The researchers were able to show that they could use the full potential of the computer, and do so in a way that made the computer no less reliable than a traditional computer does.

In addition, scientists typically want to use quantum computers to work on problems that are already routinely expressed in audits. Martin Ringbauer, experimental physicist and member of the Innsbruck team, said, “Working with zeros and more than one is very natural, not only for quantum computers but also for its applications, we need to unlock the true potential of quantum systems. allows.”

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The work is reported in a new paper, ‘A universal qudit quantum processor with trapped ions’, published today nature physics,

Nation World News Desk
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