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How to make a quantum bit

We have looked at how a transistor works, the fundamental unit of classical computers, and how a quantum computer works in theory, taking advantage of quantum superposition to hold exponentially more information than classical computers. Now we look at the practical side of making a quantum bit, or qubit. How do you put it in a state where it is stable? How do you read and write information on it? These processes are described for a solid state qubit – a phosphorous atom in a silicon crystal substrate. Both the electron and the nucleus of the phosphorous atom can be used as qubits.

Lazyglasses – a “technical solution” to ‘sitting-upright problem’ (3 pictures)

You’ve spent all day, working like a demon, sitting in your uncomfortable desk chair. Your eyes burn under the glare of the fluorescent lighting, and at the end of a long day, all you want to do is lie down, kick your feet up, and read, raid, and consume some TV. Lying flat on your back, as comfortable as that can be, isn’t at all conducive to any of those activities. Your screen, sitting upright, is minus-90 degrees from your field of view.

Luckily, we’ve found a techical solution to your problem…