Quantum repeaters with individual rare-earth ions at telecommunication wavelengths
We present a quantum repeater scheme that is based on individual erbium and europium ions. Erbium ions are attractive because they emit photons at telecommunication wavelength, while europium ions offer exceptional spin coherence for long-term storage. Entanglement between distant erbium ions is cre...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Verein zur Förderung des Open Access Publizierens in den Quantenwissenschaften
2018-09-01
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| Series: | Quantum |
| Online Access: | https://quantum-journal.org/papers/q-2018-09-13-93/pdf/ |
| _version_ | 1818535947584667648 |
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| author | F. Kimiaee Asadi N. Lauk S. Wein N. Sinclair C. O'Brien C. Simon |
| author_facet | F. Kimiaee Asadi N. Lauk S. Wein N. Sinclair C. O'Brien C. Simon |
| author_sort | F. Kimiaee Asadi |
| collection | DOAJ |
| description | We present a quantum repeater scheme that is based on individual erbium and europium ions. Erbium ions are attractive because they emit photons at telecommunication wavelength, while europium ions offer exceptional spin coherence for long-term storage. Entanglement between distant erbium ions is created by photon detection. The photon emission rate of each erbium ion is enhanced by a microcavity with high Purcell factor, as has recently been demonstrated. Entanglement is then transferred to nearby europium ions for storage. Gate operations between nearby ions are performed using dynamically controlled electric-dipole coupling. These gate operations allow entanglement swapping to be employed in order to extend the distance over which entanglement is distributed. The deterministic character of the gate operations allows improved entanglement distribution rates in comparison to atomic ensemble-based protocols. We also propose an approach that utilizes multiplexing in order to enhance the entanglement distribution rate. |
| first_indexed | 2024-12-11T18:31:39Z |
| format | Article |
| id | doaj.art-7ae3f62200604a6d97573b0334105cc1 |
| institution | Directory Open Access Journal |
| issn | 2521-327X |
| language | English |
| last_indexed | 2024-12-11T18:31:39Z |
| publishDate | 2018-09-01 |
| publisher | Verein zur Förderung des Open Access Publizierens in den Quantenwissenschaften |
| record_format | Article |
| series | Quantum |
| spelling | doaj.art-7ae3f62200604a6d97573b0334105cc12022-12-22T00:54:53ZengVerein zur Förderung des Open Access Publizierens in den QuantenwissenschaftenQuantum2521-327X2018-09-0129310.22331/q-2018-09-13-9310.22331/q-2018-09-13-93Quantum repeaters with individual rare-earth ions at telecommunication wavelengthsF. Kimiaee AsadiN. LaukS. WeinN. SinclairC. O'BrienC. SimonWe present a quantum repeater scheme that is based on individual erbium and europium ions. Erbium ions are attractive because they emit photons at telecommunication wavelength, while europium ions offer exceptional spin coherence for long-term storage. Entanglement between distant erbium ions is created by photon detection. The photon emission rate of each erbium ion is enhanced by a microcavity with high Purcell factor, as has recently been demonstrated. Entanglement is then transferred to nearby europium ions for storage. Gate operations between nearby ions are performed using dynamically controlled electric-dipole coupling. These gate operations allow entanglement swapping to be employed in order to extend the distance over which entanglement is distributed. The deterministic character of the gate operations allows improved entanglement distribution rates in comparison to atomic ensemble-based protocols. We also propose an approach that utilizes multiplexing in order to enhance the entanglement distribution rate.https://quantum-journal.org/papers/q-2018-09-13-93/pdf/ |
| spellingShingle | F. Kimiaee Asadi N. Lauk S. Wein N. Sinclair C. O'Brien C. Simon Quantum repeaters with individual rare-earth ions at telecommunication wavelengths Quantum |
| title | Quantum repeaters with individual rare-earth ions at telecommunication wavelengths |
| title_full | Quantum repeaters with individual rare-earth ions at telecommunication wavelengths |
| title_fullStr | Quantum repeaters with individual rare-earth ions at telecommunication wavelengths |
| title_full_unstemmed | Quantum repeaters with individual rare-earth ions at telecommunication wavelengths |
| title_short | Quantum repeaters with individual rare-earth ions at telecommunication wavelengths |
| title_sort | quantum repeaters with individual rare earth ions at telecommunication wavelengths |
| url | https://quantum-journal.org/papers/q-2018-09-13-93/pdf/ |
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