The research does not stand still, and a new group of scientists has reached a new level of computing power, much higher, when it comes to quantum computers . It is, in fact, the first device that goes beyond the classic binary system, based only on 0 and 1 , used in all traditional computers and so far also in quantum ones.
There is not only the binary system in computer science
For decades, computers have been synonymous with binary information : zeros and ones. We all magically associate the binary system with information technology and information technology with the binary system, precisely because of the close correlation that has always existed between the two worlds. Now, a team from the University of Innsbruck, Austria, has created a quantum computer that breaks this paradigm and unlocks additional, hitherto “hidden” computational resources .
Used to thinking in binary terms when it comes to computer computing, even today's quantum computers were designed with binary information processing in mind, but this has implied a limitation in the exploitation of quantum computers:
"The building blocks of quantum computers, however, are not just zeros and ones," explains Martin Ringbauer, an experimental physicist from Innsbruck, Austria. "Limiting them to binary systems prevents these devices from living up to their true potential."
The team led by Thomas Monz at the Department of Experimental Physics at the University of Innsbruck has now succeeded in developing a quantum computer capable of performing arbitrary calculations with so-called quantum digits (or qudits) , thus unlocking more computing power with less. quantum particles. The research was published in Nature Physics with the title “A universal qudit quantum processor with trapped ions” .
Quantum computers are different, and we need to understand that
While storing information in zeros and ones isn't the most efficient way to perform calculations, it's definitely the easiest way. But as always, especially in engineering, simple often also means reliable and resistant but also less efficient. In fact, in the quantum world, the situation is completely different.
In the quantum computer developed in Innsbruck, for example, information is stored in individual trapped calcium atoms. Each of these atoms naturally has eight different states, of which usually only two are used to store information, leaving the remaining six as "unused" . The computer developed by the Innsbruck physicists is able to exploit the full potential of these atoms, exploiting with qudits. Contrary to the classic case, the use of multiple states does not make the computer less reliable:
"Quantum systems naturally have more than just two states and we have shown that we can control them all equally well"
On the other hand, many of the tasks that require quantum computers, such as physics, chemistry or materials science problems, are naturally expressed in the qudit language as well. Rewriting them for qubits can often make them too complicated for today's quantum computers:
“Working with more than zeroes and ones is very natural, not only for the quantum computer but also for its applications, allowing us to unlock the true potential of quantum systems,” explains Martin Ringbauer.
Definition of quantum computer
A quantum computer or quantum computer uses the quantum properties of matter, such as superposition of states and entanglement, in order to perform operations on data. Unlike a classical computer, based on transistors that operate on binary data (encoded as bits, therefore 0 and 1), the quantum computer operates with quantum bits.
Chamati also qubit, the quantum state can possess multiple values, or more precisely a single quantum value that corresponds simultaneously to multiple classical values. The discipline that deals, in the theoretical and experimental fields, with the development of quantum computation is called quantum computation
The article Created new, more powerful quantum computers that do not use the binary system was written on: Tech CuE | Close-up Engineering .