Quantum channel capacity for OAM based free-space optical communications

Ivan B. Djordjevic; Yequn Zhang; Xin Gao

doi:10.1117/12.950031

15 October 2012 Quantum channel capacity for OAM-based free-space optical communications

Ivan B. Djordjevic, Yequn Zhang, Xin Gao

Proceedings Volume 8518, Quantum Communications and Quantum Imaging X; 851809 (2012) https://doi.org/10.1117/12.950031
Event: SPIE Optical Engineering + Applications, 2012, San Diego, California, United States

Abstract

We study the channel capacity for orbital angular momentum (OAM) based quantum free-space optical communications. Inspired by recent demonstrations for OAM-based single-photon communication, we construct the quantum density operator in matrix form, based on OAM eigenkets, and determine the quantum channel model suitable for study of the quantum communication over atmospheric turbulence channels. The quantum channel model is derived from OAM eigenkets transition probabilities. By using this model we determine the OAM quantum channel capacity in the presence of atmospheric turbulence. The proposed quantum channel model is of high importance for future study of quantum error correction coding to extend the transmission distance and data rate of free-space quantum communications.

Citation Download Citation

Ivan B. Djordjevic, Yequn Zhang, and Xin Gao "Quantum channel capacity for OAM-based free-space optical communications", Proc. SPIE 8518, Quantum Communications and Quantum Imaging X, 851809 (15 October 2012); https://doi.org/10.1117/12.950031

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available