NMR implementation of Quantum Delayed-Choice Experiment

TL;DR

This paper presents the first experimental realization of a quantum delayed-choice experiment using NMR, demonstrating the continuous transition between particle and wave behaviors in a controlled quantum system.

Contribution

It introduces a novel NMR-based implementation of the quantum delayed-choice experiment, showcasing the morphing of quantum behavior in a new experimental platform.

Findings

Clear demonstration of particle-wave morphing in NMR

Good agreement between experimental results and theoretical predictions

First NMR implementation of quantum delayed-choice experiment

Abstract

We report the first experimental demonstration of quantum delayed-choice experiment via nuclear magnetic resonance techniques. An ensemble of molecules each with two spin-1/2 nuclei are used as target and the ancilla qubits to perform the quantum circuit corresponding the delayed-choice setup. As expected in theory, our experiments clearly demonstrate the continuous morphing of the target qubit between particle-like and wave-like behaviors. The experimental visibility of the interference patterns shows good agreement with the theory.