Phase estimation is an algorithm to get the eingenvalue as the angle.
by blueqat - 19.05.08
Greenberger–Horne–Zeilinger state is the state which as entanglement of 3qubits. Let’s see the circuit.
Quantum teleportation does not teleport the qubit itself. Instead this algorithm transfer the quantum state and information about the qubit using entanglement and measurement.
Grover’s algorithm is a search algorithm to find out the data efficiently from random data.
Controlled-Controlled-Not gate using 3qubits gate.
Quantum fourier transform is an algorithm like a classical fast fourier transform.