Work

Modular Bosonic Subsystem Codes

Year: 2020

Type: article

Abstract: We introduce a framework to decompose a bosonic mode into two virtual subsystems-a logical qubit and a gauge mode. This framework allows the entire toolkit of qubit-based quantum information to be applied in the continuous-variable setting. We give a detailed example based on a modular decomposition of the position basis and apply it in two situations. First, we decompose Gottesman-Kitaev-Preskill grid states and find that the encoded logical state can be damaged due to entanglement with the gauge mode. Second, we identify and disentangle qubit cluster states hidden inside of Gaussian continuous-variable cluster states.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.125.040501

Authors: Giacomo Pantaleoni, Ben Q. Baragiola, Nicolas C. Menicucci

Institution: RMIT University

Language: English

Topic: Quantum Computing Algorithms and Architecture

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

Funder: Australian Research Council

Award: ARC Centre of Excellence for Quantum Computation and Communication Technology