Teleportation Revealed
Quantum teleportation is the name of a problem: How can the real-valued parameters encoding the state at Alice’s location make their way to Bob’s location via shared entanglement and only two bits of classical communication? Without an explanation, teleportation appears to be a conjuring trick. Inve...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-06-01
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| Series: | Quantum Reports |
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| Online Access: | https://www.mdpi.com/2624-960X/5/2/34 |
| _version_ | 1797592860084666368 |
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| author | Charles Alexandre Bédard |
| author_facet | Charles Alexandre Bédard |
| author_sort | Charles Alexandre Bédard |
| collection | DOAJ |
| description | Quantum teleportation is the name of a problem: How can the real-valued parameters encoding the state at Alice’s location make their way to Bob’s location via shared entanglement and only two bits of classical communication? Without an explanation, teleportation appears to be a conjuring trick. Investigating the phenomenon with Schrödinger states and reduced density matrices shall always leave loose ends because they are not local and complete descriptions of quantum systems. Upon demonstrating that the Heisenberg picture admits a local and complete description, Deutsch and Hayden rendered its explanatory power manifest by revealing the trick behind teleportation, namely, by providing an entirely local account. Their analysis is re-exposed and further developed. |
| first_indexed | 2024-03-11T02:00:11Z |
| format | Article |
| id | doaj.art-9eba46f482ce45118992bb23845ee75e |
| institution | Directory Open Access Journal |
| issn | 2624-960X |
| language | English |
| last_indexed | 2024-03-11T02:00:11Z |
| publishDate | 2023-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Quantum Reports |
| spelling | doaj.art-9eba46f482ce45118992bb23845ee75e2023-11-18T12:21:47ZengMDPI AGQuantum Reports2624-960X2023-06-015251052510.3390/quantum5020034Teleportation RevealedCharles Alexandre Bédard0Faculty of Informatics, Università Della Svizzera Italiana; Via Giuseppe Buffi 13, 6900 Lugano, SwitzerlandQuantum teleportation is the name of a problem: How can the real-valued parameters encoding the state at Alice’s location make their way to Bob’s location via shared entanglement and only two bits of classical communication? Without an explanation, teleportation appears to be a conjuring trick. Investigating the phenomenon with Schrödinger states and reduced density matrices shall always leave loose ends because they are not local and complete descriptions of quantum systems. Upon demonstrating that the Heisenberg picture admits a local and complete description, Deutsch and Hayden rendered its explanatory power manifest by revealing the trick behind teleportation, namely, by providing an entirely local account. Their analysis is re-exposed and further developed.https://www.mdpi.com/2624-960X/5/2/34quantum teleportationlocalityunitary quantum theory |
| spellingShingle | Charles Alexandre Bédard Teleportation Revealed Quantum Reports quantum teleportation locality unitary quantum theory |
| title | Teleportation Revealed |
| title_full | Teleportation Revealed |
| title_fullStr | Teleportation Revealed |
| title_full_unstemmed | Teleportation Revealed |
| title_short | Teleportation Revealed |
| title_sort | teleportation revealed |
| topic | quantum teleportation locality unitary quantum theory |
| url | https://www.mdpi.com/2624-960X/5/2/34 |
| work_keys_str_mv | AT charlesalexandrebedard teleportationrevealed |