Scientists seek to use quantum materials—those that have correlated order at the subatomic level—for electronic devices, quantum computers, and superconductors. Quantum materials owe many of their properties to the physics ...
Quantum Physics
Apr 02, 2020
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A high-end race car engine needs all its components tuned and working together precisely to deliver top-quality performance. The same can be said about the processor inside a quantum computer, whose delicate bits must be ...
Quantum Physics
Mar 31, 2020
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Engineers at Caltech have shown that atoms in optical cavities—tiny boxes for light—could be foundational to the creation of a quantum internet. Their work was published on March 30 by the journal Nature.
Quantum Physics
Mar 30, 2020
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Quantum circuits, the building blocks of quantum computers, use quantum mechanical effects to perform tasks. They are much faster and more accurate than the classical circuits that are found in electronic devices today. In ...
Quantum Physics
Mar 27, 2020
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A research team from ITMO University, with the help of colleagues from MIPT (Russia) and Politecnico di Torino (Italy), has predicted a novel type of topological quantum state of two photons. Scientists have also applied ...
Quantum Physics
Mar 18, 2020
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Scientists from NUST MISIS (Russia) together with colleagues from Sweden, Hungary and U.S., found a way to manufacture stable qubits that operate at room temperature, in contrast to the majority of existing analogues. This ...
Quantum Physics
Mar 17, 2020
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,,Quantum computers are expected to offer tremendous computational power for complex problems –currently intractable even on supercomputers—in the areas of drug design, data science, astronomy and materials chemistry ...
Quantum Physics
Mar 17, 2020
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The race toward the first practical quantum computer is in full stride. Companies, countries, collaborators, and competitors worldwide are vying for quantum supremacy. Google says it's already there. But what does that mean? ...
Quantum Physics
Mar 17, 2020
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Scientists in Australia have developed a new approach to reducing the errors that plague experimental quantum computers; a step that could remove a critical roadblock preventing them scaling up to full working machines.
Quantum Physics
Mar 11, 2020
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Researchers from CSC—IT center for science, Aalto University and Åbo Akademi and their collaborators from Boston University in the U.S. have for the first time demonstrated how the noise impacts on quantum computing in ...
Quantum Physics
Mar 09, 2020
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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.
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