Fig. 3: Complex eigenfrequencies of the third-order PT-symmetric circuit.
From: Spectral sensitivity near exceptional points as a resource for hardware encryption
Distributions of real (a) and imaginary (b) parts of eigenfrequencies for the third-order PT telemetry system (a DEP in a third-order PT telemetry system); here, the same reader (“−RLC” oscillator) is used to interrogate 500 different tags (“RLC” oscillator) whose resistance and capacitance have a Gaussian distribution with a standard deviation σ = 0.04. Here, \(\bar{\gamma}\) is the mean value of the Gaussian distribution of \({\gamma}\).
