Noun
qubit (plural qubits)
(quantum computing) A quantum bit; the basic unit of quantum information described by a superposition of two states; a quantum bit in a quantum computer capable of being in a state of superposition.
Synonyms: qbit, quantum bit
Coordinate term: bit
As with all quantum devices, a qubit is a delicate flower. If you so much as look at it, you destroy it. Hans Christian von Baeyer
The qubit acts as a bridge between the microscopic and the macroscopic worlds. Aaron D. O'Connell
As usual, denotes addition modulo 2. The operation flips the oracle qubit if and leaves it unchanged otherwise. Source: Internet
A pure qubit state is a linear superposition of the basis states. Source: Internet
A single qubit can represent a one, a zero, or any quantum superposition of those two qubit states ; a pair of qubits can be in any quantum superposition of 4 states, and three qubits in any superposition of 8 states. Source: Internet
But his advisor responded that the device wouldn’t work for astronomy, since it wouldn’t detect photons unless they magically appeared inside of the cavity housing the qubit. Source: Internet