_Any_ [unitary transformation](Unitary%20transformations%20in%20quantum%20mechanics.md) may be realized in quantum mechanics on a single [qubit](Qubits.md) and with respect to qubits, we refer to [unitary operators](Unitary%20transformations%20in%20quantum%20mechanics.md#Unitary%20operators%20in%20quantum%20mechanics) as _quantum logic gates_ or simply _quantum gates_. %%Wait does this have to be talked about in terms of qubits only?%% ^3aa32c --- # Recommended reading #QuantumMechanics/QuantumInformation/QuantumComputation #QuantumMechanics/QuantumDynamics