Bosonic quantum error correction using squeezed Fock states

TL;DR

This paper introduces a bosonic quantum error correction code utilizing squeezed Fock states, demonstrating its effectiveness in protecting quantum information against particle loss and dephasing.

Contribution

The paper proposes a novel quantum error correction code based on squeezed Fock states and compares its performance with cat state-based codes.

Findings

Squeezed Fock states are effective in error correction.

The proposed code is competitive with cat state codes.

The code performs well under particle loss and dephasing.

Abstract

In the paper, we develop a bosonic quantum error correction code based on squeezed Fock states. We compare our proposed code with one based on squeezed Schrodinger's cat states using the Knill-Laflamme cost function and the Petz map fidelity. We demonstrate that squeezed Fock states are competitive in protecting information in a channel with particle loss and dephasing.