| Download | - View final version: A reconfigurable entanglement distribution network suitable for connecting multiple ground nodes with a satellite (PDF, 1.5 MiB)
|
|---|
| DOI | Resolve DOI: https://doi.org/10.1140/epjqt/s40507-025-00305-w |
|---|
| Author | Search for: Vinet, Stéphane; Search for: Tannous, Ramy1ORCID identifier: https://orcid.org/0000-0001-8361-6828; Search for: Jennewein, Thomas |
|---|
| Affiliation | - National Research Council of Canada. Quantum and Nanotechnologies
|
|---|
| Funder | Search for: Natural Sciences and Engineering Research Council of Canada; Search for: National Research Council Canada; Search for: Canadian Foundation for Innovation; Search for: Ontario Research Fund |
|---|
| Format | Text, Article |
|---|
| Subject | quantum networks; quantum communication; quantum key distribution; satellite-based quantum information |
|---|
| Abstract | Satellite-based quantum communication channels are important for ultra-long distances. Given the short duration of a satellite pass, it can be challenging to efficiently connect multiple users of a city-wide network while the satellite is passing over that area. We propose a network with dual-functionality: during a brief satellite pass, the ground network is configured as a multipoint-to-point topology where all ground nodes establish entanglement with a satellite receiver. During times when this satellite is not available, the satellite up-link is rerouted via a single optical switch to the ground nodes, and the network is configured as a pair-wise ground network. We numerically simulate a pulsed hyper-entangled photon source and study the performance of the proposed network configurations for quantum key distribution. We find favourable scaling in the case that the satellite receiver exploits time-multiplexing whereas the ground nodes utilize frequency-multiplexing. The scalability, simple reconfigurability, and easy integration with fibre networks make this architecture a promising candidate for quantum communication of many ground nodes and a satellite, an important step towards interconnection of ground nodes at a global scale. |
|---|
| Publication date | 2025-01-22 |
|---|
| Publisher | Springer |
|---|
| Licence | |
|---|
| In | |
|---|
| Language | English |
|---|
| Peer reviewed | Yes |
|---|
| Export citation | Export as RIS |
|---|
| Report a correction | Report a correction (opens in a new tab) |
|---|
| Record identifier | 394a4722-db34-4a48-b296-5f1fe0886a0e |
|---|
| Record created | 2025-05-12 |
|---|
| Record modified | 2025-11-03 |
|---|
