Dispersion cancellation in a quantum interferometer with independent single photons
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...
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| Main Authors | , , |
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| Abstract | 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. |
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| AbstractList | 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. 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 | Kim, Yosep Dong-Gil Im Yoon-Ho, Kim |
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| BackLink | https://doi.org/10.1364/OE.415610$$DView published paper (Access to full text may be restricted) https://doi.org/10.48550/arXiv.2008.06611$$DView paper in arXiv |
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| Copyright | 2020. This work is published under http://arxiv.org/licenses/nonexclusive-distrib/1.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. http://arxiv.org/licenses/nonexclusive-distrib/1.0 |
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| DOI | 10.48550/arxiv.2008.06611 |
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| Snippet | A key technique to perform a proper quantum information processing is to get a high visibility quantum interference between independent single photons. One of... A key technique to perform a proper quantum information processing is to get a high visibility quantum interference between independent single photons. One of... |
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| SubjectTerms | Data processing Dispersion Group velocity Interference Photons Physics - Quantum Physics Quantum computing Quantum phenomena Visibility |
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| Title | Dispersion cancellation in a quantum interferometer with independent single photons |
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