Fig. 8: Wigner tomography.
From: Fast generation of Schrödinger cat states using a Kerr-tunable superconducting resonator
a Pulse sequence for Wigner tomography. b Frequency spectrum of a sinc shaped pulse. c Frequency spectrum of two sinc pulses with a time spacing π/χ. d Enlarged view of (c). e Bloch sphere of the ancillary qubit during the cat state Wigner tomography.
