Derivation and physical interpretation of the optimum detection operators for coherent-state signals
- Research Center for Quantum Communications, Tamagawa University, Tamagawa-gakuen 6-1-1, Machida, Tokyo 194 (Japan)
The optimum detection operators are derived for several linearly independent signal sets. The quantum minimax strategy is applied to the {ital M}-ary coherent state signals such as binary phase shift, ternary symmetric, ternary phase shift, and quadrature phase shift. It is shown that the detection process induces a kind of quantum interference between signal quantum states and measurement states. {copyright} {ital 1996 The American Physical Society.}
- OSTI ID:
- 286641
- Journal Information:
- Physical Review A, Vol. 54, Issue 2; Other Information: PBD: Aug 1996
- Country of Publication:
- United States
- Language:
- English
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