Optimal waveform estimation for classical and quantum systems via time-symmetric smoothing
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Classical and quantum theories of time-symmetric smoothing, which can be used to optimally estimate wave forms in classical and quantum systems, are derived using a discrete-time approach, and the similarities between the two theories are emphasized. Application of the quantum theory to homodyne phase-locked loop design for phase estimation with narrowband squeezed optical beams is studied. The relation between the proposed theory and weak value theory of Aharonov et al. is also explored.
DepartmentMassachusetts Institute of Technology. Research Laboratory of Electronics
Physical Review A
American Physical Society
Tsang, Mankei . “Optimal waveform estimation for classical and quantum systems via time-symmetric smoothing.” Physical Review A 80.3 (2009): 033840. (C) 2010 The American Physical Society.
Final published version