Experimental reversion of the optimal quantum cloning and flipping processes
| Autor: | Fabio Sciarrino, Veronica Secondi, Francesco De Martini |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Physics
Quantum Physics FOS: Physical sciences Information theory Topology Atomic and Molecular Physics and Optics Multipartite Quantum cryptography Qubit Quantum mechanics Hardware_ARITHMETICANDLOGICSTRUCTURES Quantum cloning Quantum Physics (quant-ph) Quantum Realization (systems) Quantum computer |
| DOI: | 10.48550/arxiv.quant-ph/0504212 |
| Popis: | The quantum cloner machine maps an unknown arbitrary input qubit into two optimal clones and one optimal flipped qubit. By combining linear and non-linear optical methods we experimentally implement a scheme that, after the cloning transformation, restores the original input qubit in one of the output channels, by using local measurements, classical communication and feedforward. This significant teleportation-like method demonstrates how the information is preserved during the cloning process. The realization of the reversion process is expected to find useful applications in the field of modern multi-partite quantum cryptography. Comment: 10 pages, 3 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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