Perfect transfer of coherent state-based qubits via coupled cavities

TL;DR

This paper presents a method for perfect transfer of superpositions of coherent state-based qubits between distant quantum dot nodes using coupled cavities, minimizing decoherence through virtual excitation.

Contribution

It introduces a novel scheme for high-fidelity quantum state transfer in a linear array of quantum dots with minimal decoherence effects.

Findings

Achieves perfect transfer of coherent state superpositions

Minimizes decoherence by virtual excitation of cavity modes

Applicable to quantum communication networks

Abstract

Motivated by the need for communication of coherent state-based qubits in quantum computers, we introduce a method for perfect transferring of an arbitrary superposition of coherent states between two distant nodes of a linear array of three semiconductor QDs. The QDs trapped in a system of coupled cavities. In this method, the field mode of the cavities, as the resource of transferring of quantum states, are only virtually excited which minimizes the effect of decoherence due to photon loss.