Fig. 5: Linetrace with input-output theory fit at α = π/2.

a Measured amplitude, A/A₀, as a function of the virtual gate voltage, V_ε which is a linear superposition of the gate voltages V_R and V_L along the detuning direction (arrow in Fig. 2e). Its amplitude is defined such that \(| {V}_{\varepsilon }| =\sqrt{{V}_{R}^{2}+{V}_{L}^{2}}\). b Measured phase φ as a function of detuning gate voltage V_ε. The data is a linecut of Fig. 3a at α = π/2. The dashed curves are fits to Eq. (6).