Function sycamore_circuit 

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

Creates a new tensor network based on the Sycamore circuit.

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 start and end states are random product states.

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