Tunable phonon-driven magnon–magnon entanglement at room temperature

Y Liu, A Bergman, A Bagrov, A Delin… - New Journal of …, 2023 - iopscience.iop.org
We report the existence of entangled steady-states in bipartite quantum magnonic systems
at elevated temperatures. We consider dissipative dynamics of two magnon modes in a …

Quantum sensing of antiferromagnetic magnon two-mode squeezed vacuum

ALE Römling, A Kamra - Physical Review B, 2024 - APS
Néel ordered antiferromagnets exhibit two-mode squeezing such that their ground state is a
nonclassical superposition of magnon Fock states. Here we theoretically demonstrate that …

Robust generation of a magnonic cat state via a superconducting flux qubit

YB Hou, XL Hei, XF Pan, JK Xie, YL Ren, SL Ma, FL Li… - Physical Review A, 2024 - APS
We study the hybrid system of a high-quality yttrium-iron-garnet (YIG) sphere magnetically
coupled to a superconducting flux qubit via the magnetic fields created by two persistent …

Quantum spin systems: toroidal classification and geometric duality

V Azimi-Mousolou, A Bergman, A Delin… - arXiv preprint arXiv …, 2024 - arxiv.org
Toroidal classification and geometric duality in quantum spin systems is presented. Through
our classification and duality, we reveal that various bipartite quantum features in magnon …