Six-photon de Broglie wavelength and phase-measurement sensitivity improving upon the standard quantum limit
作者： B. Liu , Z. Y. Ou
DOI: 10.1103/PHYSREVA.81.023823
关键词:
摘要: Using only linear optics and projection measurement, we propose a simple multiphoton interference scheme for the demonstration of six-photon de Broglie wavelength, which leads to cos6{phi} dependence on single-photon phase {phi}. Although does not reach Heisenberg limit in sensitivity it improves upon standard quantum with super-resolved measurement. We discuss possible experimental implementation three pairs photons from parametric down-conversion.
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