The first use case illustrates the modeling of a GHZ state with 7 qubits. This maximally entangled state is created by applying a Hadamard gate to the first qubit, followed by a series of CNOT gates that entangle the remaining qubits in a linear sequence, resulting in a linear circuit depth.
Modeling such a circuit at the gate level requires a certain level of expertise and can be time-consuming. To reduce complexity and support users with less quantum experience, the Prepare State block can be used. It allows users to select the GHZ state and define the desired output size (e.g., 7 qubits), without having to manually construct the circuit.
