Maximal entanglement from photon-added nonlinear coherent states via unitary beam splitters |
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Authors: | K Berrada |
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Institution: | a Al Imam Mohammad Ibn Saud Islamic University (IMSIU), College of Science, Department of Physics, Riyadh, Saudi Arabia;b The Abdus Salam International Center for Theoretical Physics, Strada Costiera 11, Miramare-Trieste, Italy;c Laboratoire de Physique Théorique, Faculté des Sciences, Université Mohammed V-Agdal, Av. Ibn Battouta, B. P. 1014, Agdal Rabat, Morocco |
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Abstract: | In this paper, we construct photon-added f-deformed coherent states (PAf-DCSs) for nonlinear bosonic fields by discussing Klauder’s minimal set of conditions required to obtain coherent states. Using this set of nonlinear states, we propose a very useful scheme for generating the maximal amount of entanglement via unitary beam splitters for different strength regimes of the input field α, deformation q and excitation number m. Therefore, the possibility to create highly entangled states and to control the entanglement is proposed. Moreover, the condition for a maximal and separable output beam state is obtained. Finally, we examine the statistical properties of the PAf-DCSs through the Mandel parameter and exploit a connection between this quantity and the behavior variation of the output state entanglement. Our result may open new perspectives in different tasks of quantum information processing. |
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Keywords: | photon-added nonlinear coherent states beam splitter linear entropy entanglement statistical properties |
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