qubit
2
9.0
- noun
- /ˈkjuːbɪt/
- Specialized
- But if you don't switch the qubit, it gives you the same reading.
- flux qubit
- charge qubit
- phase qubit
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Watch on YouTubeI think that it'll go the same way with qubits and superpositions.
- I think that it'll go the same way with qubits and superpositions.
- So the system of these two qubits, let's say they're up and down these spins, right?
- First things first, quantum computers calculate with quantum bits, qubits for short, that can become entangled.
- Thousands of qubits can now be modeled with the latest generation of quantum computers.
- And this is important because at the moment labs, quantum computers are limited to quite small numbers of qubits.
- And so sort of the, the, the, you know, the qubits are very far from, from perfect.
Examples
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Unlike classical bits, a qubit can represent both zero and one simultaneously.
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In quantum computing, a qubit is the fundamental unit of information that can exist in multiple states at once.
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So while the qubit is not observed, it's at the same time zero and one, so to say.
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Unlike the classical binary bit, the qubit can be on or off or anywhere in between.
Academic text (2005) -
First, we split up the qubits into two sets.
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So far, we can only control a few qubits in the same place at the same time.
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The additional structure in the qubit leads to computational and communication abilities that do not exist with classical hardware.
Academic text (2012) -
So it is desirable to have qubits that can be individually controlled.
Academic text (2005) -
Quantum computing involves preparing, manipulating, and reading out the quantum states of a many-qubit system.
Academic text (2005) -
Creating, sustaining, manipulating and error correcting qubits is very hard indeed.
Surface Forms
Morphology
Etymology
Qubit is a short form of quantum and bit, where quantum means 'a very small amount' in physics and bit is the 'basic unit of information' in computers. So, a qubit is a 'quantum bit' like a bit but in quantum physics, which lets it be 0 and 1 at the same time.