Unit of quantum information, analogous to the classical bit; the information carried by a 2-state quantum-mechanical system, e.g.
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Your quantum bit can very quickly become an ordinary classical bit.
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The new research from Purdue and New South Wales does not demonstrate a quantum bit.
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But the whole point of quantum computing is that a quantum bit counts for much, much more than a classical bit.
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The online interface resembles a musical score consisting of five horizontal lines, one line corresponding to each quantum bit, or qubit.
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But in a QC, the bit is upgraded to a quantum bit, or qubit, that doesn't need to choose between 1 and 0.
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The robot, made by the company QBIT Robotics, can pour a beer in 40 seconds and mix a cocktail in a minute.
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The problem is that building a qubit is a extreme difficult thing.
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That way, a tweak to one qubit may influence all the others.
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This allows a single-shot quantum nondemolition measurement of the qubit spin.
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Therefore any entangled 2-qubit state cannot escape the detection by this kind of test.
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We study quantum interference effects of a qubit whose energy levels are continuously modulated.
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I've reanalyzed Branco's work using qubit network theory, and it makes sense to me.
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Finally, the superposition for qubit A would remain -preserving its initial quantum state.
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The rub is building even a single qubit is difficult.
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In other words, the qubit turns into an ordinary bit.
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Controllable qubit coupling is analogous to the wiring of transistors on a circuit board.
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The energy-modulated qubit is probed by the electron spin resonance.
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The problem is that if you look at a qubit, it's no longer a qubit.
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Long-distance quantum communication networks require appropriate interfaces between matter qubit-based nodes and low-loss photonic quantum channels.
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IBM Q Experience I chose the 5-qubit machine.
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A QC's capacity doubles with each additional qubit.
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That's a better name than "qubit", one endlessly pulsing about in a Bloch sphere.