There is a dichotomy between what appears very simple and what it does, which is very powerful,” García Ripoll points out. Today, quantum machines are primitive systems akin to a calculator at the turn of the last century, but their computing power for very specific problems is much greater than a traditional computer's. There isn't an architecture as complicated as the architecture for a conventional computer. We only have a group of qubits that we use to write information, and we work with those. A quantum computer isn't suitable for performing day-to-day tasks", Garcia Ripoll explains. Researchers work on developing algorithms (mathematical models that classical computers also work with) that can provide concrete solutions to the problems that are presented. In a quantum computer all the numbers and possibilities that can be created with N qubits are superimposed (if there are 3 qubits, there will be 8 simultaneous possible permutations.) With 1,000 qubits the exponential possibilities far exceed those that we have in classical computing”.Ĭurrently, in contrast to classical computing, there are no quantum computing languages per se. Operations that are not feasible in bit computing can be performed with a quantum computer.
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"In classical computing we know how to solve problems thanks to computer language ( AND, OR NOT) used when programming.
![quantum calculator quantum calculator](https://i.ytimg.com/vi/O8ojVv_emn0/maxresdefault.jpg)
Juan José García Ripoll, researcher at the Institute of Fundamental Physics within the Spanish National Research Council, provides more clues. This means that qubits, as opposed to bits, can take on various values at one time and can perform calculations that a conventional computer cannot. In quantum computing, qubits are the basic unit and their value can be 1, 0, or 1 and 0 simultaneously, overlapping (superposition) and intertwining (entanglement) according to the laws of physics.
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Every element of a classical computer is written in binary code (1s and 0s) and is translated into electricity: high voltage is represented by 1, and low voltage by 0. The first thing to bear in mind is that they use different basic units of data: 'bits' and 'qubits'. Quantum physics is so complex that even Richard Feyman, 1965 Nobel Laureate in Physics and one of the fathers of quantum computing in the 1980s famously said, "I think I can safely say that nobody understands quantum mechanics”.Īs the reality of a quantum computer comes closer, it is useful for us to understand both how one functions and how it’s different from a traditional computer. In the quantum world, this isn’t the case: particles can have different values, they are not isolated objects, their states are diluted," he explains. "In the classical world, the properties of the systems that we study are well defined.
![quantum calculator quantum calculator](https://i.ytimg.com/vi/2WOKMSkSTJs/hqdefault.jpg)
Arnau Riera - doctor in theoretical physics high school teacher and advisor to Quantum, an exhibition hosted at the Center of Contemporary Culture of Barcelona (CCCB) - defines it as a conceptual change. Among other subjects of study, quantum physics began with the study of an atom's particles and its electrons at a microscopic scale, something that had never been done before. To understand how a quantum computer works, and the quantum mechanics on which it is based, we should look back to the beginning of the 20th century, when this physical theory was first raised. “Qubits” were discussed as units of value, outpacing the traditional bits of classical computing. For newcomers to this computing paradigm, IBM explained that the quantum computer could solve (much more quickly than traditional computers) a set of much more complex calculations.
![quantum calculator quantum calculator](https://bpi.com/wp-content/uploads/2018/11/cyber_lock-1024x1024.jpg)
A few months ago, IBM unveiled the first quantum computer, the Q System.