Bridging Quantum and Classical Descriptions of Spin Dynamics in a Dzyaloshinsky-Moriya Trimer
arXiv:2602.19060 · doi:10.1016/j.aop.2026.170389
Abstract
The spin dynamics of a trimer with Dzyaloshinsky-Moriya (DM) interaction are investigated within a unified Hamiltonian framework that connects quantum-mechanical and semiclassical descriptions. The interpolation between the two regimes is realised by solving the modified Gisin-Schrödinger equation, in which the relative weight of a quantum coherence and local mean-field contributions is continuously tuned. The resulting dynamical behaviour is analysed and summarised in a ground state diagram that illustrates how the character of the spin motion evolves from fully quantum to semiclassical as the DM interaction is treated at different levels of approximation. In the last part of the publication, the chiral spin dynamics proposed by Da-Wei Wang et al. is examined theoretically, taking into account its behaviour at the boundary between quantum and classical physics.
arXiv comment10 pages, 7 flgures
References in corpus (23)
- Decoherence, einselection, and the quantum origins of the classical
- Photonic quantum information processing: a concise review
- Universal digital quantum simulation with trapped ions
- Skyrmion Qubits: A New Class of Quantum Logic Elements Based on Nanoscale Magnetization
- Spintronics and Quantum Dots for Quantum Computing and Quantum Communication
- Quantum spin transistor with a Heisenberg spin chain
- Synthesis of antisymmetric spin exchange interaction and entanglement generation with chiral spin states in a superconducting circuit
- Probing the topology of the quantum analog of a classical skyrmion
- Colloquium: Quantum Properties and Functionalities of Magnetic Skyrmions
- Controlled Creation of Quantum Skyrmions
- The emergence of classical behavior in magnetic adatoms
- Quantum versus Classical Dynamics in Spin Models: Chains, Ladders, and Square Lattices
- CMOS Position-Based Charge Qubits: Theoretical Analysis of Control and Entanglement
- Controlling NMR spin systems for quantum computation
- Electron spin resonance with scanning tunneling microscopy: a tool for an on-surface quantum platform of identical qubits
- Heisenberg-exchange-free nanoskyrmion mosaic
- Decoherence wave in magnetic systems and creation of Néel antiferromagnetic state by measurement
- Systematic study of Mn atoms, artificial dimers and chains on superconducting Ta(110)
- Spatiotemporal dynamics of classical and quantum density profiles in low-dimensional spin systems
- Dark state adiabatic passage with branched networks and high-spin systems: spin separation and entanglement
- Phase Coexistence of Mn Trimer Clusters and Antiferromagnetic Mn Islands on Ir(111)
- Quantum computing of magnetic-skyrmion-like patterns in Heisenberg ferromagnets
- Investigation of the spin dynamics of quantum spin dimers with Dzyaloshinsky-Moriya interaction