Average fidelity of qubit transfer through a linear spin-S channel for N=4, 5, 6

  • Art Graeson Briones Dumigpe National Institute of Physics, University of the Philippines Diliman
  • Eric Alvarez Galapon National Institute of Physics, University of the Philippines Diliman

Abstract

We consider the transfer of an arbitrary qubit state through a linear spin chain for N=4, 5, and 6 spins, each with a spin-S channel. We calculate the average fidelity between the arbitrary initial state of the qubit at one end and the time evolved qubit state at the opposite end of the chain. We show that increasing the quantum number S of the channel spins allows attaining near perfect state transfer at an earlier time for the isotropic exchange case. We also show that an opposite effect is observed in the anisotropic case.

Published
2018-05-24
How to Cite
[1]
A. G. Dumigpe and E. Galapon. Average fidelity of qubit transfer through a linear spin-S channel for N=4, 5, 6, Proceedings of the Samahang Pisika ng Pilipinas 36, SPP-2018-PC-14 (2018). URL: https://paperview.spp-online.org/proceedings/article/view/SPP-2018-PC-14.
Section
Poster Session C (Mathematical Physics, Optics, and Interdisciplinary Topics)