Feasible quantum engineering of quantum multiphoton superpositions

OPTICS COMMUNICATIONS

卷:337

Article

Stobinska, Magdalena^1,2 

[1] Univ Gdansk, Inst Theoret Phys & Astrophys, PL-80952 Gdansk, Poland

[2] Polish Acad Sci, Inst Phys, PL-02668 Warsaw, Poland

关键词: Multi-photon Hong-Ou-Mandel effect;    Quantum engineering;    Multi-photon superpositions;   

DOI  :  10.1016/j.optcom.2014.07.030

来源: Elsevier

【 摘 要 】

We examine an experimental setup implementing a family of quantum nun Gaussian filters. The filters can be applied to an arbitrary two mode input state. We assume realistic photodetection in the filtering process and explore two different models of inefficient detections: a beam splitter of a small reflectivity located in front of a perfect detector and a Weierstrass transform applied to the unperturbed measurement outcomes. We explicitly give an operator which describes the coherent action of the filters in the realistic experimental conditions. The filtered states may find applications in quantum metrology, quantum communication and other quantum tasks. (C) 2014 Elsevier B.V. All rights reserved.

【 授权许可】

Free