Electronics & Semiconductors

Fabricating qubits using advanced semiconductor manufacturing processes

Quantum computers are promising computing machines that perform computations leveraging the collective properties of quantum physics states. These computers could help to tackle many computational problems that are currently ...

Engineering

Tiny, cheap solution for quantum-secure encryption

It's fairly reasonable to assume that an encrypted email can't be seen by prying eyes. That's because in order to break through most of the encryption systems we use on a day-to-day basis, unless you are the intended recipient, ...

Computer Sciences

Observing time crystals on a quantum computer

When you hear the words "time crystal" you could be forgiven for imagining something fantastic like a magic crystal ball or a device for time travel. But time crystals are very real, although they are a bit like magic.

Software

CT analysis of concrete beams

Concrete's properties as a material have made it an essential part of today's construction methods. Alongside its many advantages, however, this universal favorite has its share of drawbacks—the most prominent being that ...

Computer Sciences

A language for quantum computing

Time crystals. Microwaves. Diamonds. What do these three disparate things have in common?

Computer Sciences

Major improvements in quantum fidelity

Researchers used Oak Ridge National Laboratory's Quantum Computing User Program (QCUP) to achieve major improvements in quantum fidelity, a potential step toward more accurate, reliable quantum networks and supercomputers.

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Quantum computer

A quantum computer is a device for computation that makes direct use of quantum mechanical phenomena, such as superposition and entanglement, to perform operations on data. The basic principle behind quantum computation is that quantum properties can be used to represent data and perform operations on these data.

Although quantum computing is still in its infancy, experiments have been carried out in which quantum computational operations were executed on a very small number of qubits (quantum binary digits). Both practical and theoretical research continues with interest, and many national government and military funding agencies support quantum computing research to develop quantum computers for both civilian and national security purposes, such as cryptanalysis.

If large-scale quantum computers can be built, they will be able to solve certain problems much faster than any of our current classical computers (for example Shor's algorithm). Quantum computers are different from other computers such as DNA computers and traditional computers based on transistors. Some computing architectures such as optical computers may use classical superposition of electromagnetic waves. Without some specifically quantum mechanical resources such as entanglement, it is conjectured that an exponential advantage over classical computers is not possible.

This text uses material from Wikipedia, licensed under CC BY-SA