Classical-to-quantum crossover in electron on-demand emission

Abstract

Emergence of a classical particle trajectory concept from the full quantum description is a key feature of quantum mechanics. Recent progress of solid state on-demand sources has brought single-electron manipulation into the quantum regime, however, the quantum-to-classical crossover remains unprobed. Here we describe theoretically a mechanism for generating single-electron wave packets by tunneling from a driven localized state, and show how to tune the degree of quantumness. Applying our theory to existing on-demand sources, we demonstrate the feasibility of an experimental investigation of quantum-to-classical crossover for single electrons, and open up yet unexplored potential for few-electron quantum technology devices.

final PRB version

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Cited by in corpus (12)

• Quantum tomography of electrical currents
• Continuous-Variable Tomography of Solitary Electrons
• Taming electronic decoherence in 1D chiral ballistic quantum conductors
• Two electrons interacting at a mesoscopic beam splitter
• Trapping and counting ballistic non-equilibrium electrons
• Minimal-excitation single-particle emitters: A comparison of charge and energy transport properties
• Time-energy filtering of single electrons in ballistic waveguides
• Collision of two interacting electrons on a mesoscopic beamsplitter: exact solution in the classical limit
• Spectroscopy of hot-electron pair emission from a driven quantum dot
• Modeling shallow confinement in tuneable quantum dots
• Single-electron emission from degenerate quantum levels
• Method for rapid estimation of the energy-time covariance matrix of single electrons