Experimental realization of a dynamic squeezing gate

TL;DR

This paper demonstrates a dynamically controllable squeezing gate with a 1 MHz bandwidth, enabling real-time Gaussian processing and advancing the implementation of universal quantum gates.

Contribution

It presents the first experimental realization of a squeezing gate with tunable parameters controlled by an external signal, facilitating dynamic quantum information processing.

Findings

Achieved real-time control of squeezing parameters

Enabled immediate use as feed-forward for cubic gate implementation

Demonstrated potential for dynamic Gaussian quantum processing

Abstract

Squeezing is a nonlinear Gaussian operation that is the key component in construction of other nonlinear Gaussian gates. In our implementation of the squeezing gate, the amount and the orientation of the squeezing can be controlled by an external driving signal with 1 MHz operational bandwidth. This opens a brand new area of dynamic Gaussian processing. In particular, the gate can be immediately employed as the feed-forward needed for the deterministic implementation of the quantum cubic gate, which is a key piece of universal quantum information processing.