Light-matter entanglement for hybrid quantum networks
This research aims to establish a key element of hybrid quantum networks by demonstrating remote entanglement between disparate quantum systems, specifically a cold atomic ensemble and a rare-earth ion-doped crystal, on a long-term project. In this work, we focused on two important aspects towards t...
| Author: | |
|---|---|
| Format: | master thesis |
| Publication Date: | 2024 |
| Country: | España |
| Institution: | Universitat Politècnica de Catalunya (UPC) |
| Repository: | UPCommons. Portal del coneixement obert de la UPC |
| Language: | English |
| OAI Identifier: | oai:upcommons.upc.edu:2117/423629 |
| Online Access: | https://hdl.handle.net/2117/423629 |
| Access Level: | Open access |
| Keyword: | Quantum communication Photonics hybrid quantum networks qubit conversion quantum frequency conversion Comunicació quàntica Fotònica Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fotònica |
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Light-matter entanglement for hybrid quantum networks Rego Falagán, Nuria Quantum communication Photonics hybrid quantum networks qubit conversion quantum frequency conversion Comunicació quàntica Fotònica Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fotònica This research aims to establish a key element of hybrid quantum networks by demonstrating remote entanglement between disparate quantum systems, specifically a cold atomic ensemble and a rare-earth ion-doped crystal, on a long-term project. In this work, we focused on two important aspects towards this goal: the development of a qubit converter and quantum frequency conversion techniques. The qubit converter is built to transform polarization qubits from the cold atoms system into time-bin qubits to ensure compatibility with photons from the solid-state system. Then, quantum frequency conversion based on non-linear effects is studied to shift the 780nm entangled photon of the atomic system to the telecom C-band, aligning it with photons from the rare-earth ion-doped crystal experiment. This process is essential for conducting the Bell-state measurement required for remote entanglement generation. Universitat Politècnica de Catalunya https://hdl.handle.net/2117/423629 |
| title |
Light-matter entanglement for hybrid quantum networks |
| spellingShingle |
Light-matter entanglement for hybrid quantum networks Rego Falagán, Nuria Quantum communication Photonics hybrid quantum networks qubit conversion quantum frequency conversion Comunicació quàntica Fotònica Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fotònica |
| title_short |
Light-matter entanglement for hybrid quantum networks |
| title_full |
Light-matter entanglement for hybrid quantum networks |
| title_fullStr |
Light-matter entanglement for hybrid quantum networks |
| title_full_unstemmed |
Light-matter entanglement for hybrid quantum networks |
| title_sort |
Light-matter entanglement for hybrid quantum networks |
| author |
Rego Falagán, Nuria |
| author_facet |
Rego Falagán, Nuria |
| author_role |
author |
| topic |
Quantum communication Photonics hybrid quantum networks qubit conversion quantum frequency conversion Comunicació quàntica Fotònica Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fotònica |
| topic_facet |
Quantum communication Photonics hybrid quantum networks qubit conversion quantum frequency conversion Comunicació quàntica Fotònica Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fotònica |
| description |
This research aims to establish a key element of hybrid quantum networks by demonstrating remote entanglement between disparate quantum systems, specifically a cold atomic ensemble and a rare-earth ion-doped crystal, on a long-term project. In this work, we focused on two important aspects towards this goal: the development of a qubit converter and quantum frequency conversion techniques. The qubit converter is built to transform polarization qubits from the cold atoms system into time-bin qubits to ensure compatibility with photons from the solid-state system. Then, quantum frequency conversion based on non-linear effects is studied to shift the 780nm entangled photon of the atomic system to the telecom C-band, aligning it with photons from the rare-earth ion-doped crystal experiment. This process is essential for conducting the Bell-state measurement required for remote entanglement generation. |
| publishDate |
2024 |
| format |
masterThesis |
| url |
https://hdl.handle.net/2117/423629 |
| language |
eng |
| eu_rights_str_mv |
openAccess |
| publisher |
Universitat Politècnica de Catalunya |
| institution |
Universitat Politècnica de Catalunya (UPC) |
| collection |
UPCommons. Portal del coneixement obert de la UPC |
| reponame_str |
UPCommons. Portal del coneixement obert de la UPC |
| instname_str |
Universitat Politècnica de Catalunya (UPC) |
| _version_ |
1878438020132110336 |
| publishDateSort |
2024 |
| author_browse |
Rego Falagán, Nuria |
| publisherStr |
Universitat Politècnica de Catalunya |
| score |
6,924472 |