Title: Kerr nonlinear coupler and entanglement induced by broadband laser light
Abstract:We consider a model of Kerr-like nonlinear coupler linearly excited by a external classical field involving coherent part and white noise and solved a set of coupled stochastic integro-differential eq...We consider a model of Kerr-like nonlinear coupler linearly excited by a external classical field involving coherent part and white noise and solved a set of coupled stochastic integro-differential equations, deriving exactly analytical formulae for the probability amplitudes of n-photon Fock states. As a consequence, this nonlinear coupler deliberated behaves as a two-qubit system. The effects of dissipation on entanglement of formation parameterised by concurrence are also analyzed and compare these results with that obtained previously in the literature. As a interesting result, initially for a period of time the entanglement is enlarged when the chaotic parameter increases. Full Text: PDF References A. Einstein, B. Podolski, N. Rosen, Can Quantum-Mechanical Description of Physical Reality Be Considered Complete?, Phys. Rev. 47, 777 (1935). CrossRef A. Miranowicz, W. Leonski, Two-mode optical state truncation and generation of maximally entangled states in pumped nonlinear couplers, J. Phys. B 39, 1683 (2006). CrossRef T.D. Nguyen, W. Leonski, V. Cao Long, Computer Simulation of Two-Mode Nonlinear Scissors, Comput. Method. Sci. Tech. 19, 175 (2013). CrossRef N. Korolkova, J. Peřina, Quantum statistics and dynamics of nonlinear couplers, Opt. Commun. 136, 135 (1997). CrossRef A. Kowalewska-Kudlaszyk, W. Leonski, Finite-dimensional states and entanglement generation for a nonlinear coupler, Phys. Rev. 73, 042318 (2006). CrossRef A. Kowalewska-Kudlaszyk, W. Leonski, T.D. Nguyen, V. Cao Long, Kicked nonlinear quantum scissors and entanglement generation, Phys. Scr. T 160, 014023 (2014). CrossRef K. Doan Quoc, V. Cao Long, W. Leonski, Electromagnetically induced transparency for Λ-like systems with a structured continuum and broad-band coupling laser, Phys. Scr. T 147, 014008 (2012). CrossRef K. Doan Quoc, V. Cao Long, W. Leonski, A broad-band laser-driven double Fano system—photoelectron spectra, Phys. Scr. 86, 045301 (2012). CrossRef K. Doan Quoc, V. Cao Long, L. Chu Van, P. Huynh Vinh, Electromagnetically induced transparency for Λ-like systems with degenerate autoionizing levels and a broadband coupling laser, Optica Applicata 46, 93 (2016). CrossRef W. Leonski, A. Miranowicz, Kerr nonlinear coupler and entanglement, J. Opt. B 6, S37 (2004). CrossRef K. Doan Quoc, V. Cao Long, to be Published. W. Leonski, Finite-dimensional coherent-state generation and quantum-optical nonlinear oscillator models, Phys. Rev. 55, 3874 (1997). CrossRefRead More
Publication Year: 2016
Publication Date: 2016-09-30
Language: en
Type: article
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Cited By Count: 2
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