quantum gate
nounUK /ˈkwɒntəm ɡeɪt/
US /ˈkwɑːntəm ɡeɪt/
A quantum gate is a tiny computer step that changes the information inside a quantum computer.
The scientist used a quantum gate to flip the qubit from zero to one.
OTHER MEANINGS
2. A physical device that performs a controlled operation on quantum bits.
The lab built a new quantum gate using trapped ions.
3. A building block of a quantum algorithm, similar to a logic gate in classical computing.
The algorithm was designed with a sequence of quantum gates.
4. In quantum information theory, a unitary transformation acting on a small number of qubits.
Each quantum gate corresponds to a unitary matrix.