Programme

P.46 -- Poster, VCTP-47

Date: Thursday, 4 August 2022

Time: 08:30 - 10:00

Entanglement and quantum teleportation with nonlinear charge pair cat states

Dang Huu Dinh (1), Truong Minh Duc (2), and Tran Quang Dat (3)

(1) Industrial University of Ho Chi Minh City (2) Center for Theoretical and Computational Physics, University of Education, Hue University, Vietnam (3) University of Transport and Communications, Hanoi, Vietnam

In this paper, we investigate the entanglement degree of the nonlinear charge pair cat states using the linear entropy criterion. It is shown that these states are entangled and their entanglement degree depends on the nonlinear functions f(n). We have used these states for teleportation of a coherent state in two different measurements at the sender by using joint measurements of the quadrature amplitude and joint measurements of the photon number sum and phase difference. The investigated results show that the even nonlinear charge pair cat states are more suitable for teleportation in the way of the quadrature amplitude measurements. However, in the joint measurement of the photon number sum and phase difference, these states are suitable for the teleportation process in the small amplitude of the coherent state. Keywords: nonlinear charge pair cat states; entanglement degree; quantum teleportation

Presenter: Dang Huu Dinh