arXiv:1808.03003 · Physical Review A

On-demand generation of traveling cat states using a parametric oscillator

Hayato Goto, Zhirong Lin, Tsuyoshi Yamamoto, Yasunobu Nakamura

Published Feb 20, 2019• 27 citations

Abstract

We theoretically propose a method for on-demand generation of traveling Schr\"odinger cat states, namely, quantum superpositions of distinct coherent states of traveling fields. This method is based on deterministic generation of intracavity cat states using a Kerr-nonlinear parametric oscillator (KPO) via quantum adiabatic evolution. We show that the cat states generated inside a KPO can be released into an output mode by dynamically controlling the parametric pump amplitude. We further show that the quality of the traveling cat states can be improved by using a shortcut-to-adiabaticity technique.

DOI: 10.1103/physreva.99.023838

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