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学术报告:Quantum phase estimation with binary-outcome measurement

发布人:日期:2017-08-02浏览数:

学术报告

报告题目:Quantum phase estimation with binary-outcome measurement

报告人:金光日,北京交通大学教授

报告时间:2017年8月8号上午 8:30

报告地点:量子楼410学术报告厅

报告摘要:Optimal measurement scheme with an efficient data processing is important in quantum-enhanced interferometry. In this talk, we show that for a general binary-outcome measurement, the simplest data processing based on inverting the average signal always saturate the Cramer-Rao lower bound. This idea is illustrated by binary-outcome homodyne detection, even-odd photon counting (i.e., parity detection), and zero-nonzero photon counting that have been demonstrated in coherent-light Mach-Zehnder interferometer. We further show quantum-enhanced microscopy with the binary-outcome photon counting.