Accession Number:

ADA067660

Title:

Detection of a Coherent Quantum Signal in Thermal Noise.

Personal Author(s):

Corporate Author:

NAVAL OCEAN SYSTEMS CENTER SAN DIEGO CA

Report Date:

1978-12-01

Abstract:

Methods are presented for calculating the minimum attainable probability of error in detecting a coherent quantum signal received amid thermal noise in the limits of low and high signal-to-noise ratio. In the latter limit, quantum-mechanical perturbation theory is applied to solving the detection operator equation approximately. Graphic results are furnished for binary signals transmitted with equal prior probabilities. Previous work on this problem is thus extended to a broader range of signal and noise strengths. The results are applied to the detection of antipodal two-photon-coherent-state signals. Author

Descriptive Note:

Final rept. 30 Jun-30 Sep 78,

Pages:

0026

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File Size:

11.96MB

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