Time-bin-to-polarization conversion of ultrafast photonic qubits
| Autor: | Khabat Heshami, Connor Kupchak, Michael Spanner, Philip J. Bustard, Benjamin J. Sussman, Jennifer Erskine, Duncan G. England |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Physics
Quantum Physics Quantum network business.industry FOS: Physical sciences 01 natural sciences Shutter speed 010309 optics Shutter Qubit 0103 physical sciences Optoelectronics Photonics Quantum information Quantum Physics (quant-ph) 010306 general physics business Quantum information science Ultrashort pulse |
| Popis: | The encoding of quantum information in photonic time-bin qubits is apt for long-distance quantum communication schemes. In practice, due to technical constraints such as detector response time, or the speed with which copolarized time-bins can be switched, other encodings, e.g., polarization, are often preferred for operations like state detection. Here, we present the conversion of qubits between polarization and time-bin encodings by using a method that is based on an ultrafast optical Kerr shutter and attain efficiencies of 97% and an average fidelity of $0.827\ifmmode\pm\else\textpm\fi{}0.003$ with shutter speeds near 1 ps. Our demonstration delineates an essential requirement for the development of hybrid and high-rate optical quantum networks. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|