Category Archives: Quantum computers

Photon-transistors for the supercomputers of the future

Scientist from the Niels Bohr Institute at University of Copenhagen and from Harvard University have worked out a new theory which describe how the necessary transistors for the quantum computers of the future may be created. The research has just been published in the scientific journal Nature Physics.

Researchers dream of quantum computers. Incredibly fast super computers which can solve such extremely complicated tasks that it will revolutionise the application possibilities. But there are some serious difficulties. One of them is the transistors, which are the systems that process the signals.

Two photons are sent through a nanowire towards an atom where they collide such that one photon (red) transfers its information to the other photon. Credit: Anders Sndberg Srensen associate professor University of Copenhagen Continue reading

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Computing breakthrough could elevate security to unprecedented levels

By using pulses of light to dramatically accelerate quantum computers, University of Michigan researchers have made strides in technology that could foil national and personal security threats.

It’s a leap, they say, that could lead to tougher protections of information and quicker deciphering of hackers’ encryption codes.

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Scientists successfully demonstrate world’s first controllably coupled qubits

Japan Science and Technology Agency (JST) and the Institute of Physical and Chemical Research (RIKEN) have together successfully demonstrated the world’s first quantum bit (qubit) circuit that can control the strength of coupling between qubits. Technology achieving control of the coupling strength between qubits is vital to the realization of a practical quantum computer, and has been long awaited in the scientific field.
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