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State Discriminiation Signal Nulling Receivers

Published

Author(s)

Francisco E. Becerra Chavez, Jingyun Fan, Gerald Baumgartner, Sergey V. Polyakov, Julius Goldhar, Jonathan Kosloski, Alan L. Migdall

Abstract

Optimized state-discrimination receiver strategies for nonorthogonal states can improve the capacity of the communication channels operating with error rates below the ones corresponding to conventional receivers. Coherent signal-nulling receivers use a local oscillator to null the signal state and perform the discrimination of the signal from an alphabet of nonorthogonal states. We describe our study of signal nulling for signals encoded in nonorthogonal phase states. The signal nulling discrimination setup is the first step for the experimental investigation of different discrimination strategies for receivers of coherent multi-phase encoded signals.
Citation
SPIE Conference Proceedings
Volume
8163

Keywords

homodyne limit, state discrimination, communication, quantum key distribution, helstrom bound, nonorthogonal states

Citation

Becerra, F. , Fan, J. , Baumgartner, G. , Polyakov, S. , Goldhar, J. , Kosloski, J. and Migdall, A. (2011), State Discriminiation Signal Nulling Receivers, SPIE Conference Proceedings, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=909465 (Accessed January 26, 2022)
Created September 6, 2011, Updated February 19, 2017