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Maximal entanglement from photon-added nonlinear coherent states via unitary beam splitters |
| K. Berradaa b c |
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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Received: 20 April 2013
Revised: 17 June 2013
Accepted manuscript online:
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PACS:
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42.50.Dv
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(Quantum state engineering and measurements)
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03.67.-a
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(Quantum information)
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03.65.Ud
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(Entanglement and quantum nonlocality)
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03.65.Ca
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(Formalism)
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Corresponding Authors:
K. Berrada
E-mail: kberrada@ictp.it
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| About author: 42.50.Dv; 03.67.-a; 03.65.Ud; 03.65.Ca |
Cite this article:
K. Berrada Maximal entanglement from photon-added nonlinear coherent states via unitary beam splitters 2014 Chin. Phys. B 23 024208
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