Addendum to "Single photon logic gates using minimum resources"

TL;DR

This paper enhances the previous work on multi-qubit logic gates by providing practical methods and guidelines for constructing realistic quantum circuits using controlled-path and merging gates.

Contribution

It introduces efficient strategies and rules for building quantum circuits based on the earlier theoretical framework, facilitating practical implementation.

Findings

Provided detailed construction methods for quantum circuits

Outlined guiding principles for circuit design

Improved feasibility of multi-qubit gate realization

Abstract

The authors call attention to a previous work [Qing Lin and Bing He, Phys. Rev. A 80, 042310 (2009)] on the realization of multi-qubit logic gates with controlled-path and merging gate. We supplement the work by showing how to efficiently build realistic quantum circuits in this approach and giving the guiding rules for the task.