Nonclassical properties of non-Gaussian two-mode quantum vortex state

Vikram Singh¹ , Devendra Kumar Mishra²

1. Physics Department, Nehru Gram Bharati (Deemed to be University), Kotwa-Jamunipur Dubawal, Allahabad, U. P., India.
2. Physics Department, Institute of Science, Banaras Hindu University, Varanasi-221005, India.

Section:Research Paper, Product Type: Isroset-Journal
Vol.6 , Issue.4 , pp.1-5, Aug-2018

CrossRef-DOI:   https://doi.org/10.26438/ijsrpas/v6i4.15

Online published on Aug 31, 2018

Copyright © Vikram Singh, Devendra Kumar Mishra . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
Nonclassicality of optical fields are the key resources in quantum information processing. Recently, Agarwal [New J. Phys., 13, 073008(2011)] proposed a method for engineering of a two-mode vortex state, a non-Gaussian state, by subtracting a photon from a two-mode squeezed state produced by down-converter from idler mode via a beam splitter with low reflectivity and detection of one photon by the avalanche photo diode (APD), or even better by a single-photon detector. We study the nonclassicalities of this state in terms of squeezing, antibunching, photon number correlation and distribution of photon number. In addition, we study higher-order nonclassical properties, viz., sum squeezing. We find that the non-Gaussian state shows strong nonclassical effects.

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vikramsinghphy@gmail.com

References :
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