Function sycamore_circuit 

pub fn sycamore_circuit<R>(qubits: usize, depth: usize, rng: &mut R) -> Circuit
where
    R: Rng,

Creates a circuit based on the Sycamore circuit scheme.

The depth is the number of rounds, where one round consists of a layer of single-qubit gates followed by a layer of two-qubit gates. The circuit is initialized in the |0> state.

For more details on the circuit, see https://arxiv.org/abs/1910.11333.