All-order dispersion cancellation and energy-time entangled state
Autor: | Jinsoo Ryu, Hoonsoo Kang, Kiyoung Cho, Cha-Hwan Oh |
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Rok vydání: | 2017 |
Předmět: |
Quantum optics
Physics Photon business.industry Order (ring theory) Quantum Physics State (functional analysis) Interference (wave propagation) Dispersion coefficient 01 natural sciences Atomic and Molecular Physics and Optics 010309 optics Optics Quantum mechanics 0103 physical sciences 010306 general physics business Dispersion (chemistry) Energy (signal processing) |
Zdroj: | OPTICS EXPRESS(25): 2 |
ISSN: | 1094-4087 |
Popis: | 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. (C) 2017 Optical Society of America |
Databáze: | OpenAIRE |
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