Fast generation of three-dimensional entanglement between two spatially separated atoms via invariant-based shortcut

TL;DR

This paper presents a rapid and robust method for generating three-dimensional entanglement between two atoms in separate cavities using invariant-based shortcuts, promising practical experimental implementation.

Contribution

It introduces a novel scheme combining invariant-based shortcuts and quantum Zeno dynamics for fast, high-fidelity entanglement generation between spatially separated atoms.

Findings

High fidelity achieved within short time

Robust against decoherence and parameter variations

Potential for experimental realization

Abstract

A scheme is proposed for the fast generation of three-dimensional entanglement between two atoms trapped in two cavities connected by a fiber via invariant-based shortcut to adiabatic passage. With the help of quantum Zeno dynamics, the technique of invariant-based shortcut to adiabatic passage is applied for the generation of two-atom three-dimensional entanglement. The numerical simulation results show that, within a short time, the scheme has a high fidelity and is robust against the decoherence caused by the atomic spontaneous emission, photon leakage, and the variations in the parameters selected. Moreover, the scheme may be possible to be implemented with the current experimental technology.