A Generalized Open Quantum System Approach for the Electron Paramagnetic Resonance of Magnetic Atoms

Abstract

A recent experimental breakthrough allowed to probe electronic parametric resonance of a single magnetic atom in an STM setup. The results present intriguing features, such as an asymmetric lineshape and unusually large ratio of the decoherence and decay rates, which defy standard approaches using the conventional Bloch equations. To address these issues we employ novel generalized Bloch equations, together with proper microscopic modeling of the magnetic adatom, and show how all the experimental features can naturally be accounted for. The proposed approach may also be useful in treating any future similar experiments, as well as next generation hybrid quantum devices.

arXiv commentAccepted for publication in PRB

References in corpus (5)

• Quantum technologies with hybrid systems
• Engineering the eigenstates of coupled spin-1/2 atoms on a surface
• Hybrid solid state qubits: the powerful role of electron spins
• Theory of spin-polarized scanning tunneling microscopy applied to local spins
• Fingerprints of single nuclear spin energy levels using STM - ENDOR

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• A theoretical review on the single-impurity electron spin resonance on surfaces
• Finite frequency backscattering current noise at a helical edge
• Bridging between Lab and Rotating Frame Master Equations for Open Quantum Systems
• Double Quantum Dot scenario for spin resonance in current noise
• Coherent and Dissipative Spin Torques in Quantum Dots: A Unified Framework for Quantum Spin Dynamics
• Theory of Electron Spin Resonance Scanning Tunneling Microscopy: The First Decade