Enhanced Probing of Fermion Interaction Using Weak Value Amplification

Abstract

We propose a scheme for enhanced probing of an interaction between two single fermions based on weak-value amplification. The scheme is applied to measuring the anisotropic electron-hole exchange interaction strength in semiconductor quantum dots, where both spin and energy are mapped onto emitted photons. We study the effect of dephasing of the probe on the weak-value-enhanced measurement. We find that in the limit of slow noise, weak-value amplification provides a unique tool for enhanced-precision measurement of few-fermion systems.

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Cited by in corpus (6)

• Weak Value Amplification Can Outperform Conventional Measurement in the Presence of Detector Saturation
• Improving the precision of weak measurements by postselection measurement
• Entanglement-assisted weak value amplification
• Protecting weak measurements against systematic errors
• Suppressing technical noises in weak measurement by entanglement
• Weak value amplification of atomic cat states