2021/05/11 by Šimon Bräuer, Petr Marek · 1 citation
Physics and Astronomy · #quant-ph #physics.optics
paper · pdf · doi:10.1364/oe.427637
published as Opt. Express29, 22648 (2021)
arxiv created 2021/05/11 · arxiv updated 2021/07/15
Quantum states with nonlinear squeezing are a necessary resource for deterministic implementation of high-order quadrature phase gates that are, in turn, sufficient for advanced quantum information processing. We demonstrate that this class of states can be deterministically prepared by employing a single Kerr gate accompanied by suitable Gaussian processing. The required Kerr coupling depends on the energy of the initial system and can be made arbitrarily small. We also employ numerical simulations to analyze the effects of imperfections and to show to which extent can they be neglected.