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Electron spin resonance with scanning tunneling microscopy: a tool for an on-surface quantum platform of identical qubits

Deung-Jang Choi, Soo‐hyon Phark, Andreas J. Heinrich, Nicolás Lorente

2025Nanoscale Advances9 citationsDOIOpen Access PDF

Abstract

Rabi oscillations, and quantum state readout through frequency-resolved detection. We further demonstrate multi-qubit control architectures enabled by atom manipulation and local magnetic field engineering, culminating in the realization of multi-qubit logic gates such as the Controlled-NOT and Toffoli gates. These implementations highlight the specialty of ESR-STM towards atomic-scale quantum circuits. Indeed, ESR-STM can be an excellent tool to perform and evaluate quantum operations in molecular qubits. The results reviewed in this collection establish ESR-STM as a versatile tool for advancing quantum coherent science at the atomic and molecular level in solid-state environments.

Topics & Concepts

Scanning tunneling microscopeQubitSpin polarized scanning tunneling microscopyScanning tunneling spectroscopyQuantum tunnellingSpin (aerodynamics)Electron paramagnetic resonancePhysicsSurface (topology)Condensed matter physicsResonance (particle physics)QuantumMaterials scienceAtomic physicsNuclear magnetic resonanceQuantum mechanicsMathematicsGeometryThermodynamicsQuantum and electron transport phenomenaMolecular Junctions and NanostructuresQuantum Information and Cryptography
Electron spin resonance with scanning tunneling microscopy: a tool for an on-surface quantum platform of identical qubits | Litcius