Fig. 2: Nonlinearity of the electronic Mach-Zehnder interferometer.
From: Electronic interferometry with ultrashort plasmonic pulses
The DC I-V curve is decomposed into its symmetric (IS) and antisymmetric (IAS) components with respect to the bias voltage Vdc. a Density plot of the symmetric component of the current as a function of the DC bias voltage Vdc and magnetic field B. The vertical line cut, shows the nonlinear I-V characteristic at a magnetic field of B = 10 mT. The horizontal line cut shows AB oscillations at a bias voltage of Vdc = 25 μV. b Same as (a), but for the antisymmetric component of the current. The I-V characteristic exhibits primarily a linear behaviour. The applied bias voltage is corrected to account for the effective reduction of the bias due to the electronic circuit (Supplementary Information, Section 1.1). c, d Quantum transport simulations of both the symmetric and antisymmetric components of the current, analogous to (a, b).
