Physicists from the United Kingdom, Germany and Canada have developed a quantum cell qubit, which operates chauffe without cooling to close to absolute zero temperature. In this case, the basis for qubit used phosphorus atom introduced in purified silicon, which suggests the potential compatibility with conventional technology chips.
Qubit was created by adding phosphorus-31 atoms in the crystal lattice of the silicon-28, and used it cleared isotopes (phosphorus-31 is 100 percent natural phosphorus, but silicon-28 accounts for 94 percent of silicon). Logical unit zero and answered states phosphorus ions differing direction of its nuclear spin (spin 1/2 nucleus is 31P), and to control the spin researchers used microwaves.
Scientists report that they helped develop quantum information store for more than half an hour at room temperature and chilled to 4 degrees Kelvin cryostat - more than three hours. In addition, as qubit can control both cooling and under normal conditions. Talking about the transfer of technology to conventional chips until early because of the complexity of the experimental setup (it needed additional magnet cryostat and a few lasers) and the inability to selectively change the state of individual atoms instead of several tens of billions of ions, but physicists are going to continue in this direction .
Quantum computing based on the fact that some two-level system (qubit) initially goes into a mixture of two states, then place it over certain actions (logic operation), and is the measurement. Theoretically, by staying in the two qubit states simultaneously chauffe can significantly speed up the calculation, but in practice quantum computing while working only in the quality of laboratory devices whose performance chauffe can not talk about solving practical problems.
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