A proposal to implement a quantum delayed choice experiment assisted by a cavity QED

TL;DR

This paper proposes a feasible cavity QED-based scheme for a quantum delayed-choice experiment, enabling the observation of wave-particle duality with current technology through atomic interactions and postselection.

Contribution

It introduces a novel cavity QED protocol for quantum delayed-choice experiments that is experimentally feasible with existing technology.

Findings

Successful implementation of wave-particle duality verification

Cavity state returns to ground state after protocol

Sequential operations enabled by cavity reset

Abstract

We propose a scheme feasible with current technology to implement a quantum delayed-choice experiment in the realm of cavity QED. Our scheme uses two-level atoms interacting on and off resonantly with a single mode of a high Q cavity. At the end of the protocol, the state of the cavity returns to its ground state, allowing new sequential operations. The particle and wave behavior, which are verified in a single experimental setup, are postselected after the atomic states are selectively detected.