Dependence of Fidelity of Quantum Teleportation for Pure State on Degree of Entanglement

Authors

  • J. K. Sharma
  • Sushamana Sharma
  • Rajshri Vyas

DOI:

https://doi.org/10.37591/rrjophy.v1i1.792

Abstract

Quantum information and computation has been a rapidly evolving field. As Landauer pointed out, information is physical, so it should not look strange to try to bring together quantum mechanics and information theory. Indeed, it was soon realized that it was possible to use the laws of quantum physics to perform tasks which are unconceivable within the framework of classical physics like quantum teleportation, superdense coding, quantum cryptography, Shor’s factorization algorithm or Grover’s searching algorithm. Here, quantum teleportation has been discussed in a different way for two qubit pure state. It is a well-known fact that any two qubit pure states can be decomposed into two parts – pure entangled part and factorizable part. The square of the weightage of entangled part (p) gives the amount of entanglement in the state. It has been shown that the fidelity of quantum teleportation is a function of p and its variation with p has been plotted for all the possible outcomes.

 

Keywords:quantum mechanics, teleportation, Fidelity

Downloads

Published

2018-05-09

Issue

Vol. 1 No. 1 (2012)

Section

Research Article

License

Declaration and Copyright Transfer Form

(to be completed by authors)

I/ We, the undersigned author(s) of the submitted manuscript, hereby declare, that the above manuscript which is submitted for publication in the STM Journals(s), is not published already in part or whole (except in the form of abstract) in any journal or magazine for private or public circulation, and, is not under consideration of publication elsewhere.

  • I/We will not withdraw the manuscript after 1 week of submission as I have read the Author Guidelines and will adhere to the guidelines.
  • I/We Author(s ) have niether given nor will give this manuscript elsewhere for publishing after submitting in STM Journal(s).
  • I/ We have read the original version of the manuscript and am/ are responsible for the thought contents embodied in it. The work dealt in the manuscript is my/ our own, and my/ our individual contribution to this work is significant enough to qualify for authorship.
  •  I/We also agree to the authorship of the article in the following order:

Author’s name                                    

 

1. ________________

2. ________________

3. ________________

4. ________________

 

We  Author(s) tick this box and would request you to consider it as our signature as we agree to the terms of this Copyright Notice, which will apply to this submission if and when it is published by this journal.