A New Security Proof for Twin-Field Quantum Key Distribution (QKD)
Twin-field QKD (TF-QKD) protocols allow for increased key rates over long distances when compared to standard QKD protocols. They are even able to surpass the PLOB bound without the need for quantum repeaters. In this work, we revisit a previous TF-QKD protocol and derive a new, simple, proof of sec...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-12-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/14/1/187 |
| _version_ | 1797359133810229248 |
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| author | Walter O. Krawec |
| author_facet | Walter O. Krawec |
| author_sort | Walter O. Krawec |
| collection | DOAJ |
| description | Twin-field QKD (TF-QKD) protocols allow for increased key rates over long distances when compared to standard QKD protocols. They are even able to surpass the PLOB bound without the need for quantum repeaters. In this work, we revisit a previous TF-QKD protocol and derive a new, simple, proof of security for it. We also look at several variants of the protocol and investigate their performance, showing some interesting behaviors due to the asymmetric nature of the protocol. |
| first_indexed | 2024-03-08T15:11:34Z |
| format | Article |
| id | doaj.art-4f22cddbcd904da4a46fb2cee3c35ac7 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-08T15:11:34Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-4f22cddbcd904da4a46fb2cee3c35ac72024-01-10T14:51:16ZengMDPI AGApplied Sciences2076-34172023-12-0114118710.3390/app14010187A New Security Proof for Twin-Field Quantum Key Distribution (QKD)Walter O. Krawec0Computer Science and Engineering, University of Connecticut, Storrs, CT 06269, USATwin-field QKD (TF-QKD) protocols allow for increased key rates over long distances when compared to standard QKD protocols. They are even able to surpass the PLOB bound without the need for quantum repeaters. In this work, we revisit a previous TF-QKD protocol and derive a new, simple, proof of security for it. We also look at several variants of the protocol and investigate their performance, showing some interesting behaviors due to the asymmetric nature of the protocol.https://www.mdpi.com/2076-3417/14/1/187quantum cryptographyTwin Field QKDquantum information theory |
| spellingShingle | Walter O. Krawec A New Security Proof for Twin-Field Quantum Key Distribution (QKD) Applied Sciences quantum cryptography Twin Field QKD quantum information theory |
| title | A New Security Proof for Twin-Field Quantum Key Distribution (QKD) |
| title_full | A New Security Proof for Twin-Field Quantum Key Distribution (QKD) |
| title_fullStr | A New Security Proof for Twin-Field Quantum Key Distribution (QKD) |
| title_full_unstemmed | A New Security Proof for Twin-Field Quantum Key Distribution (QKD) |
| title_short | A New Security Proof for Twin-Field Quantum Key Distribution (QKD) |
| title_sort | new security proof for twin field quantum key distribution qkd |
| topic | quantum cryptography Twin Field QKD quantum information theory |
| url | https://www.mdpi.com/2076-3417/14/1/187 |
| work_keys_str_mv | AT walterokrawec anewsecurityprooffortwinfieldquantumkeydistributionqkd AT walterokrawec newsecurityprooffortwinfieldquantumkeydistributionqkd |