Fast Quantum State Transfer and Entanglement Renormalization Using Long-Range Interactions
In short-range interacting systems, the speed at which entanglement can be established between two separated points is limited by a constant Lieb-Robinson velocity. Long-range interacting systems are capable of faster entanglement generation, but the degree of the speedup possible is an open questio...
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Veröffentlicht in: | Physical review letters 2017-10, Vol.119 (17), p.170503-170503, Article 170503 |
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Hauptverfasser: | , , , , , |
Format: | Artikel |
Sprache: | eng |
Online-Zugang: | Volltext |
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Zusammenfassung: | In short-range interacting systems, the speed at which entanglement can be established between two separated points is limited by a constant Lieb-Robinson velocity. Long-range interacting systems are capable of faster entanglement generation, but the degree of the speedup possible is an open question. In this Letter, we present a protocol capable of transferring a quantum state across a distance L in d dimensions using long-range interactions with a strength bounded by 1/r^{α}. If α |
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ISSN: | 0031-9007 1079-7114 1079-7114 |
DOI: | 10.1103/PhysRevLett.119.170503 |