Teleportation of a genuine single-rail vacuum-one-photon qubit generated via a quantum dot source
Abstract Quantum state teleportation represents a pillar of quantum information and a milestone on the roadmap towards quantum networks with a large number of nodes. Successful photonic demonstrations of this protocol have been carried out employing different qubit encodings. However, demonstrations...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-11-01
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| Series: | npj Nanophotonics |
| Online Access: | https://doi.org/10.1038/s44310-024-00046-1 |
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| author | Beatrice Polacchi Francesco Hoch Giovanni Rodari Stefano Savo Gonzalo Carvacho Nicolò Spagnolo Taira Giordani Fabio Sciarrino |
| author_facet | Beatrice Polacchi Francesco Hoch Giovanni Rodari Stefano Savo Gonzalo Carvacho Nicolò Spagnolo Taira Giordani Fabio Sciarrino |
| author_sort | Beatrice Polacchi |
| collection | DOAJ |
| description | Abstract Quantum state teleportation represents a pillar of quantum information and a milestone on the roadmap towards quantum networks with a large number of nodes. Successful photonic demonstrations of this protocol have been carried out employing different qubit encodings. However, demonstrations in the Fock basis encoding are challenging, due to the impossibility of generating a coherent superposition of vacuum-one photon states on a single mode with linear optics. Indeed, previous realizations only allowed the teleportation of dual-rail entangled states, by exploiting ancillary electromagnetic modes. Here, instead, we enable the quantum teleportation of pure vacuum-one-photon qubits encoded in a single spatial mode, by exploiting coherent control of a resonantly excited semiconductor quantum dot in a micro-cavity. Within our setup, we can both teleport genuine single-rail vacuum-one-photon qubits and perform entanglement swapping. Our results may disclose new quantum information processing potentialities for this encoding, whose manipulation is achievable via quantum dot single-photon sources. |
| format | Article |
| id | doaj-art-e5ecac4f09924aa2a6c3325ab68c817d |
| institution | Kabale University |
| issn | 2948-216X |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Nanophotonics |
| spelling | doaj-art-e5ecac4f09924aa2a6c3325ab68c817d2024-12-01T12:29:28ZengNature Portfolionpj Nanophotonics2948-216X2024-11-01111910.1038/s44310-024-00046-1Teleportation of a genuine single-rail vacuum-one-photon qubit generated via a quantum dot sourceBeatrice Polacchi0Francesco Hoch1Giovanni Rodari2Stefano Savo3Gonzalo Carvacho4Nicolò Spagnolo5Taira Giordani6Fabio Sciarrino7Dipartimento di Fisica, Sapienza Università di RomaDipartimento di Fisica, Sapienza Università di RomaDipartimento di Fisica, Sapienza Università di RomaDipartimento di Fisica, Sapienza Università di RomaDipartimento di Fisica, Sapienza Università di RomaDipartimento di Fisica, Sapienza Università di RomaDipartimento di Fisica, Sapienza Università di RomaDipartimento di Fisica, Sapienza Università di RomaAbstract Quantum state teleportation represents a pillar of quantum information and a milestone on the roadmap towards quantum networks with a large number of nodes. Successful photonic demonstrations of this protocol have been carried out employing different qubit encodings. However, demonstrations in the Fock basis encoding are challenging, due to the impossibility of generating a coherent superposition of vacuum-one photon states on a single mode with linear optics. Indeed, previous realizations only allowed the teleportation of dual-rail entangled states, by exploiting ancillary electromagnetic modes. Here, instead, we enable the quantum teleportation of pure vacuum-one-photon qubits encoded in a single spatial mode, by exploiting coherent control of a resonantly excited semiconductor quantum dot in a micro-cavity. Within our setup, we can both teleport genuine single-rail vacuum-one-photon qubits and perform entanglement swapping. Our results may disclose new quantum information processing potentialities for this encoding, whose manipulation is achievable via quantum dot single-photon sources.https://doi.org/10.1038/s44310-024-00046-1 |
| spellingShingle | Beatrice Polacchi Francesco Hoch Giovanni Rodari Stefano Savo Gonzalo Carvacho Nicolò Spagnolo Taira Giordani Fabio Sciarrino Teleportation of a genuine single-rail vacuum-one-photon qubit generated via a quantum dot source npj Nanophotonics |
| title | Teleportation of a genuine single-rail vacuum-one-photon qubit generated via a quantum dot source |
| title_full | Teleportation of a genuine single-rail vacuum-one-photon qubit generated via a quantum dot source |
| title_fullStr | Teleportation of a genuine single-rail vacuum-one-photon qubit generated via a quantum dot source |
| title_full_unstemmed | Teleportation of a genuine single-rail vacuum-one-photon qubit generated via a quantum dot source |
| title_short | Teleportation of a genuine single-rail vacuum-one-photon qubit generated via a quantum dot source |
| title_sort | teleportation of a genuine single rail vacuum one photon qubit generated via a quantum dot source |
| url | https://doi.org/10.1038/s44310-024-00046-1 |
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