Scattering solution of interacting Hamiltonian for electronic control of molecular spin qubits
arXiv:2210.15747 · doi:10.1103/PhysRevA.107.042423
Abstract
We theoretically study how a scattered electron can entangle molecular spin qubits (MSQs). This requires solving the inelastic transport of a single electron through a scattering region described by a tight-binding interacting Hamiltonian. We accomplish this using a Green's function solution. We can model realistic physical implementations of MSQs by parameterizing the tight-binding Hamiltonian with first-principles descriptions of magnetic anisotropy and exchange interactions. We find that for two-MSQ systems with inversion symmetry, the spin degree of freedom of the scattered electron offers probabilistic control of the degree of entanglement between the MSQs.
References in corpus (10)
- Supramolecular Spin Valves
- Entanglement versus Correlations in Spin Systems
- Conductance calculations for quantum wires and interfaces: mode matching and Green functions
- Entanglement of Two Impurities through Electron Scattering
- Entanglement Controlled Single-Electron Transmittivity
- Permalloy-based carbon nanotube spin-valve
- Resonant Scattering Can Enhance the Degree of Entanglement
- Two-spin entanglement induced by electron scattering in nanostructures
- Anisotropy-Exchange Resonance as a Mechanism for Entangled State Switching
- Electronic control and switching of entangled spin state using anisotropy and exchange in the three-particle paradigm