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Deterministic unitary operations on time-bin qudits for quantum communication
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abstract
We show for the first time how deterministic unitary operations on time-bin qubits encoded in single photon pulses can be realized using fiber optics components that are available with current technology. We also generalize this result to operations on time-bin qudits, i.e. $d$-level systems, and show that this can be done efficiently using 2$\times$2 beamsplitters and phase modulators. Important benefits for experimental quantum communication are highlighted. This work shows how to bridge the gap between current proof-of-principle demonstrations and complete, deterministic experiments.
Forward citations
Cited by 2 Pith papers
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High-Dimensional Quantum Photonics: Roadmap
The roadmap reviews advances in generating and manipulating high-dimensional quantum states of light across photonic degrees of freedom and outlines common challenges for their integration into future quantum technologies.
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Photonic quantum information with time-bins: Principles and applications
A comprehensive review of time-bin qubits and qudits, covering preparation, fiber and free-space transmission, interferometric measurement, entanglement, and quantum communication applications.
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