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ICOP & ICPET 2014, 20 - : 77-80 Back to browse issues page
Effects of medium characteristics on the properties of thermal photon-photon entanglement in a nonlinear nanocavity
Shahla Alizadeh 1, Rosa Safaiee Dr.1, Mohammad Mehdi Golshan Dr. * 1
1- Shiraz University
Abstract:   (4200 Views)
In this paper we study the properties of photon-photon thermal entanglement occurring in a nonlinear optical cavity. The photons are thermally produced inside a nonlinear cavity that couples the two modes via first and third order susceptibilities. Diagonalizing the Hamiltonian of the system, the thermal density matrix and, consequently, the partially transposed one are obtained. The negative eigenvalues of the latter are then calculated, leading to the negativity as a measure of photon-photon entanglement. Our results show that the two photons are separable at absolute zero. As the temperature increases, the negativity exhibits a maximum whose value strongly depends on the medium characteristics and then asymptotically vanishes.
Keywords: Thermal Effects, Entanglement, Negativity, Kerr Nonlinear Medium.
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Type of Study: Research | Subject: Special
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Alizadeh S, Safaiee R, Golshan M M. Effects of medium characteristics on the properties of thermal photon-photon entanglement in a nonlinear nanocavity. ICOP & ICPET. 2014; 20 :77-80
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انجمن اپتیک و فوتونیک ایران Optics and Photonics Society of Iran
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