Fig. 4: Implementation of Ujk(Ï„) on qubits qj and qk.
From: Evidence of Kardar-Parisi-Zhang scaling on a digital quantum simulator
Here, θ = Δτ/2 − π/2, and ϕ = τ/2 − π/2. This circuit equals Ujk(τ) up to a global phase factor of \(\exp (-i\pi /4)\).
