Entanglement measure using Wigner function: Case of generalized vortex state formed by multiphoton subtraction

OPTICS COMMUNICATIONS

卷:330

Article

Banerji, Anindya¹  Singh, Ravindra Pratap²  Bandyopadhyay, Abir¹ 

[1] Hooghly Engn & Technol Coll, Hooghly 712103, India

[2] Phys Res Lab, Ahmadabad 380009, Gujarat, India

关键词: Entanglement;    Wigner function;    Photon addition/subtraction;    Quantum optical vortex;   

DOI  :  10.1016/j.optcom.2014.05.035

来源: Elsevier

【 摘 要 】

The negativity of the Wigner function is discussed as a measure of the non-classicality and the quantum interference pattern obtained therein as a possible measure of the entanglement between the two modes of the vortex states. This measure of entanglement is compared with the results obtained from concurrence. (C) 2014 Elsevier B.V. All rights reserved.

【 授权许可】

Free