Unit of quantum information, analogous to the classical bit; the information carried by a 2-state quantum-mechanical system, e.g.
1The problem is that building a qubit is a extreme difficult thing.
2That way, a tweak to one qubit may influence all the others.
3This allows a single-shot quantum nondemolition measurement of the qubit spin.
4Therefore any entangled 2-qubit state cannot escape the detection by this kind of test.
5We study quantum interference effects of a qubit whose energy levels are continuously modulated.
6I've reanalyzed Branco's work using qubit network theory, and it makes sense to me.
7Finally, the superposition for qubit A would remain -preserving its initial quantum state.
8The rub is building even a single qubit is difficult.
9In other words, the qubit turns into an ordinary bit.
10Controllable qubit coupling is analogous to the wiring of transistors on a circuit board.
11The energy-modulated qubit is probed by the electron spin resonance.
12The problem is that if you look at a qubit, it's no longer a qubit.
13Long-distance quantum communication networks require appropriate interfaces between matter qubit-based nodes and low-loss photonic quantum channels.
14IBM Q Experience I chose the 5-qubit machine.
15A QC's capacity doubles with each additional qubit.
16That's a better name than "qubit", one endlessly pulsing about in a Bloch sphere.