Realization of a Multi-Output Quantum Pulse Gate for Decoding High-Dimensional Temporal Modes of Single-Photon States
Temporal modes (TMs) of photons provide an appealing high-dimensional encoding basis for quantum information. While techniques to generate TM states have been established, high-dimensional decoding of single-photon TMs remains an open challenge. In this work, we experimentally demonstrate demultiple...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2023-04-01
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| Series: | PRX Quantum |
| Online Access: | http://doi.org/10.1103/PRXQuantum.4.020306 |
| _version_ | 1797847882524524544 |
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| author | Laura Serino Jano Gil-Lopez Michael Stefszky Raimund Ricken Christof Eigner Benjamin Brecht Christine Silberhorn |
| author_facet | Laura Serino Jano Gil-Lopez Michael Stefszky Raimund Ricken Christof Eigner Benjamin Brecht Christine Silberhorn |
| author_sort | Laura Serino |
| collection | DOAJ |
| description | Temporal modes (TMs) of photons provide an appealing high-dimensional encoding basis for quantum information. While techniques to generate TM states have been established, high-dimensional decoding of single-photon TMs remains an open challenge. In this work, we experimentally demonstrate demultiplexing of five-dimensional TMs of single photons with an average fidelity of 0.96±0.01, characterized via measurement tomography. This is achieved with use of a newly developed device, the multi-output quantum pulse gate (MQPG). We demonstrate a proof-of-principle complete decoder based on the MQPG that operates on any basis from a set of six five-dimensional mutually unbiased bases and is therefore suitable as a receiver for high-dimensional quantum key distribution. Furthermore, we confirm the high-quality operation of the MQPG by performing resource-efficient state tomography with an average fidelity of 0.98±0.02. |
| first_indexed | 2024-04-09T18:18:28Z |
| format | Article |
| id | doaj.art-0c1146172566436e87628b01e27b7e3e |
| institution | Directory Open Access Journal |
| issn | 2691-3399 |
| language | English |
| last_indexed | 2024-04-09T18:18:28Z |
| publishDate | 2023-04-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | PRX Quantum |
| spelling | doaj.art-0c1146172566436e87628b01e27b7e3e2023-04-12T14:20:47ZengAmerican Physical SocietyPRX Quantum2691-33992023-04-014202030610.1103/PRXQuantum.4.020306Realization of a Multi-Output Quantum Pulse Gate for Decoding High-Dimensional Temporal Modes of Single-Photon StatesLaura SerinoJano Gil-LopezMichael StefszkyRaimund RickenChristof EignerBenjamin BrechtChristine SilberhornTemporal modes (TMs) of photons provide an appealing high-dimensional encoding basis for quantum information. While techniques to generate TM states have been established, high-dimensional decoding of single-photon TMs remains an open challenge. In this work, we experimentally demonstrate demultiplexing of five-dimensional TMs of single photons with an average fidelity of 0.96±0.01, characterized via measurement tomography. This is achieved with use of a newly developed device, the multi-output quantum pulse gate (MQPG). We demonstrate a proof-of-principle complete decoder based on the MQPG that operates on any basis from a set of six five-dimensional mutually unbiased bases and is therefore suitable as a receiver for high-dimensional quantum key distribution. Furthermore, we confirm the high-quality operation of the MQPG by performing resource-efficient state tomography with an average fidelity of 0.98±0.02.http://doi.org/10.1103/PRXQuantum.4.020306 |
| spellingShingle | Laura Serino Jano Gil-Lopez Michael Stefszky Raimund Ricken Christof Eigner Benjamin Brecht Christine Silberhorn Realization of a Multi-Output Quantum Pulse Gate for Decoding High-Dimensional Temporal Modes of Single-Photon States PRX Quantum |
| title | Realization of a Multi-Output Quantum Pulse Gate for Decoding High-Dimensional Temporal Modes of Single-Photon States |
| title_full | Realization of a Multi-Output Quantum Pulse Gate for Decoding High-Dimensional Temporal Modes of Single-Photon States |
| title_fullStr | Realization of a Multi-Output Quantum Pulse Gate for Decoding High-Dimensional Temporal Modes of Single-Photon States |
| title_full_unstemmed | Realization of a Multi-Output Quantum Pulse Gate for Decoding High-Dimensional Temporal Modes of Single-Photon States |
| title_short | Realization of a Multi-Output Quantum Pulse Gate for Decoding High-Dimensional Temporal Modes of Single-Photon States |
| title_sort | realization of a multi output quantum pulse gate for decoding high dimensional temporal modes of single photon states |
| url | http://doi.org/10.1103/PRXQuantum.4.020306 |
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