Entanglement of distant flux qubits mediated by non-classical electromagnetic field

TL;DR

This paper explores how two distant flux qubits can become entangled through their interaction with a non-classical electromagnetic field, using Bell state measurements and analyzing the effects of decoherence.

Contribution

It introduces a method for entangling distant flux qubits via a non-classical field and examines the impact of initial states and decoherence on entanglement.

Findings

Entanglement depends on system parameters and initial states.

Bell state measurements can successfully generate entanglement.

Decoherence influences the quality and robustness of the entangled states.

Abstract

The mechanism for entanglement of two flux qubits each interacting with a single mode electromagnetic field is discussed. By performing a Bell state measurements (BSM) on photons we find the two qubits in an entangled state depending on the system parameters. We discuss the results for two initial states and take into consideration the influence of decoherence.