Micromagnons and long-range entanglement in ferrimagnetic ground states

Abstract

While significant attention has been devoted to studying entanglement in photonic systems, solid-state spin lattices remain relatively underexplored. Motivated by this gap, we investigate the entanglement structure of one-dimensional ferrimagnetic chains composed of alternating spin-1/2 and spin-3/2 particles. We characterize the ground-state correlations using exact diagonalization and the Density Matrix Renormalization Group method. Although the bipartite entanglement is restricted to nearest neighbors, we reveal the presence of long-range genuine multipartite entanglement between spatially separated spin pairs. These findings advance our understanding of quantum correlations in ferrimagnetic materials. The micromagnon description allows to provide fast approximation of ground states of ferrimagnets and emphasizes presence of multipartite correlations not widely discussed thus far.

arXiv commentPublished in "Physical Review B"

References in corpus (19)

• The ITensor Software Library for Tensor Network Calculations
• On the role of entanglement in quantum computational speed-up
• A classification of entanglement in three-qubit systems
• Magnetic Susceptibility as a Macrosopic Entaglement Witness
• Long-distance entanglement in spin systems
• Long-distance entanglement and quantum teleportation in XX spin chains
• Energy as an Entanglement Witness for Quantum Many-Body Systems
• Remote magnon entanglement between two massive ferrimagnetic spheres via cavity optomagnonics
• Magnetic order and interactions in ferrimagnetic Mn3Si2Te6
• Heat Capacity as A Witness of Entanglement
• Strange electrical transport: Colossal magnetoresistance via avoiding fully polarized magnetization in ferrimagnetic insulator Mn3Si2Te6
• Entangling ferrimagnetic magnons with an atomic ensemble via opto-magnomechanics
• Magnetic Structure and Spin Fluctuations in Colossal Magnetoresistance Ferrimagnet Mn3Si2Te6
• Entangling mechanical vibrations of two massive ferrimagnets by fully exploiting the nonlinearity of magnetostriction
• Entanglement in a Quantum Mixed-Spin Chain
• Quantum phase transitions in alternating spin-(1/2, 5/2) Heisenberg chains
• Entanglement and quantum phase transition in quantum mixed spin chains
• Magnetic field - temperature phase diagram of ferrimagnetic alternating chains: spin-wave theory from a fully polarized vacuum
• Long-distance genuine multipartite Entanglement between Magnetic Defects in Spin Chains