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The practicality of adaptive phase estimation |
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| Authors: | D. T. Pope D. W. Berry N. K. Langford |
| Affiliation: | (1) Centre for Quantum Dynamics, School of Science, Griffith University, Brisbane, 4111, Queensland, Australia;(2) School of Physical Sciences, University of Queensland, Brisbane, 4072, Queensland, Australia;(3) Centre for Quantum Computer Technology, University of Queensland, Brisbane, 4072, Queensland, Australia |
| Abstract: | Adaptive phase estimation is the process of estimating the phase of an electromagnetic field via a continually changing measurement. The measurement is varied in an attempt to optimize it at each moment. In this paper, we show that adaptive phase estimation is more accurate than nonadaptive phase estimation for continuous beams of light even when small time delays in the feedback are present. |
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