# Squeezed Dirac and Topological Magnons in a Bosonic Honeycomb Optical   Lattice

**Authors:** S. A. Owerre, J. Nsofini

arXiv: 1706.04974 · 2017-10-20

## TL;DR

This paper explores the quantum squeezing of Dirac and topological magnons in a bosonic honeycomb optical lattice, revealing control mechanisms via anisotropy and phase-dependent noise modulation, with implications for quantum information storage.

## Contribution

It introduces a novel analysis of magnon squeezing in a honeycomb lattice with spin-orbit interaction, linking optical lattice models to solid-state magnetic systems.

## Key findings

- Magnons can be controlled by Z2 anisotropy.
- System noise is periodically modulated in different magnetic phases.
- Results are applicable to solid-state honeycomb magnetic insulators.

## Abstract

Quantum information storage using charge-neutral quasiparticles are expected to play a crucial role in the future of quantum computers. In this regard, magnons or collective spin-wave excitations in solid-state materials are promising candidates in the future of quantum computing. Here, we study the quantum squeezing of Dirac and topological magnons in a bosonic honeycomb optical lattice with spin-orbit interaction by utilizing the mapping to quantum spin-$1/2$ XYZ Heisenberg model on the honeycomb lattice with discrete Z$_2$ symmetry and a Dzyaloshinskii-Moriya interaction. We show that the squeezed magnons can be controlled by the Z$_2$ anisotropy and demonstrate how the noise in the system is periodically modified in the ferromagnetic and antiferromagnetic phases of the model. Our results also apply to solid-state honeycomb (anti)ferromagnetic insulators.

## Full text

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## Figures

9 figures with captions in the complete paper: https://tomesphere.com/paper/1706.04974/full.md

## References

55 references — full list in the complete paper: https://tomesphere.com/paper/1706.04974/full.md

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Source: https://tomesphere.com/paper/1706.04974