(logic, quantum mechanics) A form of non-classical logic which has been abstracted out of quantum mechanics.

(physics) A normalized linear combination of an "up" state and a "down" state for, say, the spin of an electron.

(quantum mechanics) The process of reconstructing the quantum state (density matrix) for a source of quantum systems by measurement on the systems coming from the source.

(quantum mechanics) A quantum operator-valued function of (any point in) space.

In terms of or by means of quantum mechanics.

plural of quantum register

plural of quantum field

(quantum computing) A basic quantum circuit operating on a small number of qubits.

plural of quantum gate

(quantum computing) A collection of qubits on which quantum gates act.