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Coupled qubits

According the HPCwire last week:

NEC Corporation, 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.

Quantum computing was much in the news with the D-Wave hubbub of this past February (coverage by us here, here, and here).

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