C-NOT three-gates performance by coherent cavity field and its optimized quantum applications

Abstract

A new realization model of controlled-not (C-NOT) three gates operations, between two atoms and coherent light. The proposed interaction model allows to earn more interaction time compared with the C-NOT two gates model of the reference work. As investigation of the obtained results, we enhance and optimize a recent teleportation work via coherent cavity field, by using less cavities number during the teleportation process. A higher probability have seen in the coherent state teleportation compared with the reference teleportation protocol (single photon teleportation). Furthermore, a generation and teleportation scheme of multipartite GHZ-type entangled coherent states is established. We note that more efficiency is given to our scheme because of simplicity of homodyne detection for coherent light.

Rays, waves, SU(2) symmetry and geometry: toolkits for structured light

“…The control of numerous DoFs in light fields, which the SU(2) geometric beams posses, can be beneficial for the implementing of multibit gates for quantum computing [216], e.g. C-Not qutrit gates [217]. Moreover the extension of numerous quantum computing with classical light is well underway, with demonstrations also exploiting the internal DoFs of laser beams.…”

Exploiting a Fock Cavity Field to Enhance Quantum Secret Sharing Through a Phase-Damping Noisy Channel

“…Many works have appended the cavity QED use to exploit the electrodynamics interaction in order to achieve and to enhance the quantum communication protocols [29].…”

Effect of Cavity QED on Entanglement

“…Additionally, the characterization of entanglement in multipartite states is a great challenge in the B Saad Rfifi saad.rfifi@gmail.com Fatimazahra Siyouri fatimazahra.siyouri@gmail.com quantum computation field [2,3]. It is the key resource of quantum communication and information related processes [4]. In this context, several approaches with several parameters have been proposed to calculate the amount of entanglement [5].…”

“…Thus, the mean advantage of this study is to get the best characterization limit of such output states in the presence of cavity QED. That allows to control its entanglement by using an appropriate cavity parameters, in order to enhance the quantum communication protocols via cavity [4]. It is useful to recall that the cavity QED as an optical device allows to generate different kinds of entanglement starting from separable systems [23].…”