Maximal entanglement from photon-added nonlinear coherent states via unitary beam splitters

doi:10.1088/1674-1056/23/2/024208

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.

Keywords: photon-added nonlinear coherent states beam splitter linear entropy entanglement statistical properties

Received: 20 April 2013
Revised: 17 June 2013
Accepted manuscript online:

PACS:	42.50.Dv	(Quantum state engineering and measurements)
	03.67.-a	(Quantum information)
	03.65.Ud	(Entanglement and quantum nonlocality)
	03.65.Ca	(Formalism)

Corresponding Authors: K. Berrada
E-mail: kberrada@ictp.it

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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Maximal entanglement from photon-added nonlinear coherent states via unitary beam splitters

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