Boosted quantum teleportation
Abstract Quantum teleportation has proven to be fundamental for many quantum information and communication processes. The core concept can be exploited in many tasks, from the transmission of quantum states, quantum repeaters, to quantum computing. However, for linear-optical systems, the efficiency...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-03-01
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| Series: | npj Quantum Information |
| Online Access: | https://doi.org/10.1038/s41534-025-00992-4 |
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| _version_ | 1849762309248909312 |
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| author | Simone E. D’Aurelio Matthias J. Bayerbach Stefanie Barz |
| author_facet | Simone E. D’Aurelio Matthias J. Bayerbach Stefanie Barz |
| author_sort | Simone E. D’Aurelio |
| collection | DOAJ |
| description | Abstract Quantum teleportation has proven to be fundamental for many quantum information and communication processes. The core concept can be exploited in many tasks, from the transmission of quantum states, quantum repeaters, to quantum computing. However, for linear-optical systems, the efficiency of teleportation is directly linked to the success probability of the involved Bell-state measurement (BSM). In most implementations, this is realized by linear optics with an intrinsically limited success probability of 50%. Here, we demonstrate quantum teleportation surpassing this limit. We achieve an average fidelity of the teleported states of 0.8677 ± 0.0024, leading to an overall acceptance rate of the teleportation of 69.71 ± 0.75%. We obtain this boosted success probability by generating ancillary photonic states that are interfered with the Bell states. Thus, our work demonstrates the boosting BSMs in quantum-technology applications and our scheme could directly be applied to, e.g., quantum repeaters. |
| format | Article |
| id | doaj-art-341902abde2b495ba6757a8eb21b8aad |
| institution | DOAJ |
| issn | 2056-6387 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Quantum Information |
| spelling | doaj-art-341902abde2b495ba6757a8eb21b8aad2025-08-20T03:05:46ZengNature Portfolionpj Quantum Information2056-63872025-03-011111710.1038/s41534-025-00992-4Boosted quantum teleportationSimone E. D’Aurelio0Matthias J. Bayerbach1Stefanie Barz2Institute for Functional Matter and Quantum Technologies, University of StuttgartInstitute for Functional Matter and Quantum Technologies, University of StuttgartInstitute for Functional Matter and Quantum Technologies, University of StuttgartAbstract Quantum teleportation has proven to be fundamental for many quantum information and communication processes. The core concept can be exploited in many tasks, from the transmission of quantum states, quantum repeaters, to quantum computing. However, for linear-optical systems, the efficiency of teleportation is directly linked to the success probability of the involved Bell-state measurement (BSM). In most implementations, this is realized by linear optics with an intrinsically limited success probability of 50%. Here, we demonstrate quantum teleportation surpassing this limit. We achieve an average fidelity of the teleported states of 0.8677 ± 0.0024, leading to an overall acceptance rate of the teleportation of 69.71 ± 0.75%. We obtain this boosted success probability by generating ancillary photonic states that are interfered with the Bell states. Thus, our work demonstrates the boosting BSMs in quantum-technology applications and our scheme could directly be applied to, e.g., quantum repeaters.https://doi.org/10.1038/s41534-025-00992-4 |
| spellingShingle | Simone E. D’Aurelio Matthias J. Bayerbach Stefanie Barz Boosted quantum teleportation npj Quantum Information |
| title | Boosted quantum teleportation |
| title_full | Boosted quantum teleportation |
| title_fullStr | Boosted quantum teleportation |
| title_full_unstemmed | Boosted quantum teleportation |
| title_short | Boosted quantum teleportation |
| title_sort | boosted quantum teleportation |
| url | https://doi.org/10.1038/s41534-025-00992-4 |
| work_keys_str_mv | AT simoneedaurelio boostedquantumteleportation AT matthiasjbayerbach boostedquantumteleportation AT stefaniebarz boostedquantumteleportation |