All-order dispersion cancellation and energy-time entangled state

作者：Ryu Jinsoo; Cho Kiyoung; Oh Cha Hwan; Kang Hoonsoo^*

来源：Optics Express, 2017, 25(2): 1360-1380.

DOI：10.1364/OE.25.001360

Dispersion cancellation with an energy-time entangled photon pair in Hong-OuMandel (HOM) interference is one phenomenon that reveals the nonclassical nature of the entangled photon pair. This phenomenon has been observed in materials with very weak dispersions. If the higher-order dispersion coefficient is non-negligible, then the experiment must be modified to realize dispersion cancellation. All-order dispersion cancellation using balanced dispersion was suggested by Steinberg. However, the same phenomenon is expected to occur even if a photon pair is not entangled. This behaviour can be explained by path indistinguishability with identical dispersion. To achieve an all-order dispersion experiment that cannot be explained classically, we modified the experiment and performed another all-order dispersion cancellation experiment that cannot be explained by identical dispersion. This is the first demonstration of nonclassical all-order dispersion cancellation.

• 出版日期2017-1-23