One-way steering of optical fields via dissipation of an atomic reservoir. (2nd November 2016)

• Record Type: Journal Article
• Authors: Rao, Shi; Hu, Xiangming; Li, Lingchao; Xu, Jun
• Is Part Of: Journal of physics. Volume 49:Number 22(2016:Nov. 15)
• Publication Date: 2016-11-02
• Subjects: one-way steering -- Bogoliubov mode dissipation -- adiabatic and nonadiabatic conditions -- cooperation parameters; 42.50.Dv -- 42.50.Pq -- 32.80.Qk -- 03.67.Bg; Atoms -- Periodicals; Molecules -- Periodicals; Optics -- Periodicals; Nuclear physics -- Periodicals; 539.6
• DOI: 10.1088/0953-4075/49/22/225502
• Languages: English
• ISSNs: 0953-4075

Abstract

Abstract: Einstein–Podolsky–Rosen (EPR) steering as a form of quantum correlation lies between entanglement and Bell nonlocality and exhibits an inherent asymmetry between two observers. We study EPR steering of two fields, which are generated via four-wave mixing processes and are entangled with each other due to the dissipation of the atomic reservoir. It is shown that the one-way steering happens from one mode to the other for different cavity decay rates and not too small cooperation parameters. Depending on the adiabatic and nonadiabatic conditions, the one-way steering occurs in a different detuning region when the cooperation parameters are relatively small. An increase in the cooperation parameters leads to an increase both in the parameter region and in the degree for the one-way steering. Finally we generalize the present scheme to the cases of the bright and/or collective fields.