| Download | - View final version: Investigation of underwater quantum channels in a 30 meter flume tank using structured photons (PDF, 1.4 MiB)
|
|---|
| DOI | Resolve DOI: https://doi.org/10.1088/1367-2630/abb688 |
|---|
| Author | Search for: Hufnagel, Felix1; Search for: Sit, Alicia1; Search for: Bouchard, Frédéric1; Search for: Zhang, Yingwen1; Search for: England, Duncan1; Search for: Heshami, Khabat1ORCID identifier: https://orcid.org/0000-0003-3864-1930; Search for: Sussman, Benjamin J.1; Search for: Karimi, Ebrahim1ORCID identifier: https://orcid.org/0000-0002-8168-7304 |
|---|
| Affiliation | - National Research Council of Canada. Security and Disruptive Technologies
|
|---|
| Format | Text, Article |
|---|
| Subject | quantum communication; underwater communication link; vector vortex modes |
|---|
| Abstract | Underwater quantum communication has recently been explored using polarization and orbital angular momentum (OAM). Here, we show that spatially structured modes, e.g., a coherent superposition of beams carrying both polarization and OAM, can also be used for underwater quantum cryptography. We also use the polarization degree of freedom to investigate the impact of the channel length on key rates for quantum communication applications. The underwater channel proves to be a difficult environment for establishing quantum communication as underwater optical turbulence results in significant beam wandering and distortions. However, the errors associated to the turbulence do not result in error rates above the threshold for establishing a positive key in a quantum communication link with both the polarization and spatially structured photons. The impact of the underwater channel on the spatially structured modes is also investigated at different distances using polarization tomography. |
|---|
| Publication date | 2020-09-23 |
|---|
| Publisher | IOP Publishing Ltd
Institute of Physics
Deutsche Physikalische Gesellschaft |
|---|
| 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 | 84f59a6a-5f0e-4797-ae82-5fb5402ad3fb |
|---|
| Record created | 2021-05-04 |
|---|
| Record modified | 2024-01-31 |
|---|
