More efficient optical quantum gates

Future quantum computers are expected not only to solve particularly tricky computing tasks, but also to be connected to a network for the secure exchange of data. In principle, quantum gates could be used for these purposes. ...

Two teams use neutral atoms to create quantum circuits

Two teams of researchers working independently have shown the viability of using neutral atoms to create quantum circuits—both have published outlines of their work in the journal Nature. One of the groups, with members ...

Researchers develop improved quantum gate testing method

The development of quantum technology is currently one of the most popular frontiers of advanced science, and is considered as a significant indicator of a country's sci-tech level. On a structural basis, a quantum computer ...

In-fridge controller could scale up quantum computers

A collaboration between computer scientists and physicists at the University of Chicago broke through one of the key obstacles for large-scale quantum computing by figuring out how to move their control signals "inside the ...

Quantum marbles in a bowl of light

Which factors determine how fast a quantum computer can perform its calculations? Physicists at the University of Bonn and the Technion—Israel Institute of Technology have devised an elegant experiment to answer this question. ...

A new piece of the quantum computing puzzle

Research from the McKelvey School of Engineering at Washington University in St. Louis has found a missing piece in the puzzle of optical quantum computing.

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