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Dispersion Cancellation in a Quantum Interferometer with Independent Single Photons by Im, Dong-Gil; Kim, Yosep; Kim, Yoon-Ho is a scholarly article available to read on EtoBox.

What is Dispersion Cancellation in a Quantum Interferometer with Independent Single Photons about?

A key technique to perform a proper quantum information processing is to get a high visibility quantum interference between independent single photons. One of the crucial elements that affects the quantum interference is a group velocity dispersion that occurs when the single photons pass through a dispersive medium. We theoretically and experimentally demonstrate that an effect of group velocity dispersion on the two-photon interference can be cancelled if two independent single photons experience the same amount of pulse broadening. This dispersion cancellation effect can be generalized to a multi-path linear interferometer with multiple independent single photons. As multi-path quantum interferometers are at the heart of quantum communication, photonic quantum computing, and boson sampling applications, our work should find wide applicability in quantum information science.

Author

Im, Dong-Gil; Kim, Yosep; Kim, Yoon-Ho

Published

2020

Language

EN