AIP conference proceedings

Quantum correlations in excited coherent W-type state

R. Sathiyabama, A. Basherrudin Mahmud Ahmed, Sh. Mohammed

Published Jan 1, 2017• 0 citations

Abstract

The tripartite W-state plays an important role in the quantum information science, due to its non vanishing bipartite correlations even after partially tracing one of the modes. The continuous variable extension of the W state is constructed using Glauber coherent states and excited using bosonic creation operators. The bipartite entanglement is measured through concurrence and tangle is also evaluated. The non classicality introduced in the three modes is measured in terms of quadrature squeezing and higher order squeezing. The influence of photon addition process on the entanglement and squeezing is derived, and from the result it is evident that the photon addition enhances the operational aspects of quantum correlation.

DOI: 10.1063/1.4984170

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