# Experimental triple-slit interference in a strongly-driven V-type artificial atom

## TL;DR

This paper demonstrates triple-slit quantum interference in a V-type artificial atom using resonance fluorescence, revealing new coherence properties and potential for quantum information applications.

## Contribution

It provides the first experimental observation of triple-slit interference in a V-type three-level quantum dot system via quantum erasure.

## Key findings

- Observation of triple-slit interference in a quantum dot
- Demonstration of quantum erasure in a V-type system
- Implications for quantum coherence and information processing

## Abstract

Rabi oscillations of a two-level atom appear as a quantum interference effect between the amplitudes associated to atomic superpositions, in analogy with the classic double-slit experiment which manifests a sinusoidal interference pattern. By extension, through direct detection of time-resolved resonance fluorescence from a quantum-dot neutral exciton driven in the Rabi regime, we experimentally demonstrate triple-slit-type quantum interference via quantum erasure in a V-type three-level artificial atom. This result is of fundamental interest in the experimental studies of the properties of V-type 3-level systems and may pave the way for further insight into their coherence properties as well as applications for quantum information schemes. It also suggests quantum dots as candidates for multi-path-interference experiments for probing foundational concepts in quantum physics.