A Framework for Fully Programmable Frequency-Encoded Quantum Networks Harnessing Multioutput Quantum Pulse Gates
Linear optical quantum networks, consisting of a quantum input state and a multiport interferometer, are an important building block for many quantum technological concepts, e.g., Gaussian boson sampling. Here, we propose the implementation of such networks based on frequency conversion by utilizing...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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American Physical Society
2024-11-01
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| Series: | PRX Quantum |
| Online Access: | http://doi.org/10.1103/PRXQuantum.5.040329 |
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| _version_ | 1846155218617630720 |
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| author | Patrick Folge Michael Stefszky Benjamin Brecht Christine Silberhorn |
| author_facet | Patrick Folge Michael Stefszky Benjamin Brecht Christine Silberhorn |
| author_sort | Patrick Folge |
| collection | DOAJ |
| description | Linear optical quantum networks, consisting of a quantum input state and a multiport interferometer, are an important building block for many quantum technological concepts, e.g., Gaussian boson sampling. Here, we propose the implementation of such networks based on frequency conversion by utilizing a so-called multioutput quantum pulse gate (MQPG). This approach allows the resource-efficient and therefore scalable implementation of frequency-bin-based, fully programmable interferometers in a single spatial and polarization mode. Quantum input states for this network can be provided by utilizing the strong frequency entanglement of a type-0 parametric down-conversion (PDC) source. Here, we develop a theoretical framework to describe linear networks based on an MQPG and PDC and utilize it to investigate the limits and scalabilty of our approach. |
| format | Article |
| id | doaj-art-c044442d70e642b2abdd19e5b313d6db |
| institution | Kabale University |
| issn | 2691-3399 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | PRX Quantum |
| spelling | doaj-art-c044442d70e642b2abdd19e5b313d6db2024-11-26T15:02:25ZengAmerican Physical SocietyPRX Quantum2691-33992024-11-015404032910.1103/PRXQuantum.5.040329A Framework for Fully Programmable Frequency-Encoded Quantum Networks Harnessing Multioutput Quantum Pulse GatesPatrick FolgeMichael StefszkyBenjamin BrechtChristine SilberhornLinear optical quantum networks, consisting of a quantum input state and a multiport interferometer, are an important building block for many quantum technological concepts, e.g., Gaussian boson sampling. Here, we propose the implementation of such networks based on frequency conversion by utilizing a so-called multioutput quantum pulse gate (MQPG). This approach allows the resource-efficient and therefore scalable implementation of frequency-bin-based, fully programmable interferometers in a single spatial and polarization mode. Quantum input states for this network can be provided by utilizing the strong frequency entanglement of a type-0 parametric down-conversion (PDC) source. Here, we develop a theoretical framework to describe linear networks based on an MQPG and PDC and utilize it to investigate the limits and scalabilty of our approach.http://doi.org/10.1103/PRXQuantum.5.040329 |
| spellingShingle | Patrick Folge Michael Stefszky Benjamin Brecht Christine Silberhorn A Framework for Fully Programmable Frequency-Encoded Quantum Networks Harnessing Multioutput Quantum Pulse Gates PRX Quantum |
| title | A Framework for Fully Programmable Frequency-Encoded Quantum Networks Harnessing Multioutput Quantum Pulse Gates |
| title_full | A Framework for Fully Programmable Frequency-Encoded Quantum Networks Harnessing Multioutput Quantum Pulse Gates |
| title_fullStr | A Framework for Fully Programmable Frequency-Encoded Quantum Networks Harnessing Multioutput Quantum Pulse Gates |
| title_full_unstemmed | A Framework for Fully Programmable Frequency-Encoded Quantum Networks Harnessing Multioutput Quantum Pulse Gates |
| title_short | A Framework for Fully Programmable Frequency-Encoded Quantum Networks Harnessing Multioutput Quantum Pulse Gates |
| title_sort | framework for fully programmable frequency encoded quantum networks harnessing multioutput quantum pulse gates |
| url | http://doi.org/10.1103/PRXQuantum.5.040329 |
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