Simultaneous classical and quantum communication scheme based on coherent detection
Abstract
An improved coherent communication scheme is provided. The coherent communication scheme encodes both classical and quantum information simultaneously using isolated groups of states: classical information is represented by different groups and can be decoded deterministically; and quantum information is represented by highly overlapped states within the same group, thus guaranteeing security. Decoding includes projecting the detection results at the receiver to one of the distinguishable encoding groups first, which allows the classical information to be read out, and then generating a quantum key from the residual randomness. This communications scheme enables simultaneous classical communication and QKD over the same communication channel using the same transmitter and receiver, opening the door to operate QKD in the background of classical communication and at negligible costs.
- Inventors:
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1805617
- Patent Number(s):
- 10944553
- Application Number:
- 15/952,873
- Assignee:
- UT-Battelle, LLC (Oak Ridge, TN)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04B - TRANSMISSION
H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04L - TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- DOE Contract Number:
- AC05-00OR22725
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 04/13/2018
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Qi, Bi. Simultaneous classical and quantum communication scheme based on coherent detection. United States: N. p., 2021.
Web.
Qi, Bi. Simultaneous classical and quantum communication scheme based on coherent detection. United States.
Qi, Bi. Tue .
"Simultaneous classical and quantum communication scheme based on coherent detection". United States. https://www.osti.gov/servlets/purl/1805617.
@article{osti_1805617,
title = {Simultaneous classical and quantum communication scheme based on coherent detection},
author = {Qi, Bi},
abstractNote = {An improved coherent communication scheme is provided. The coherent communication scheme encodes both classical and quantum information simultaneously using isolated groups of states: classical information is represented by different groups and can be decoded deterministically; and quantum information is represented by highly overlapped states within the same group, thus guaranteeing security. Decoding includes projecting the detection results at the receiver to one of the distinguishable encoding groups first, which allows the classical information to be read out, and then generating a quantum key from the residual randomness. This communications scheme enables simultaneous classical communication and QKD over the same communication channel using the same transmitter and receiver, opening the door to operate QKD in the background of classical communication and at negligible costs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2021},
month = {3}
}
Works referenced in this record:
On-chip Continuous Variable Quantum Key Distribution System with Polarization and Frequency Division Multiplexing
patent-application, June 2020
- Li, Hongwei; Martin-Lopez, Enrique
- US Patent Application 15/752346; 20200204362