Absorption-based quantum communication with NV centres
We propose a scheme for performing an entanglement-swapping operation within a quantum communications hub (a Bell like measurement) using an NV-centre’s $| \pm 1\rangle \leftrightarrow | {A}_{2}\rangle $ optical transition. This is based on the heralded absorption of a photon resonant with that tran...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2015-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/17/10/103012 |
| _version_ | 1797751081971744768 |
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| author | Burkhard Scharfenberger Hideo Kosaka William J Munro Kae Nemoto |
| author_facet | Burkhard Scharfenberger Hideo Kosaka William J Munro Kae Nemoto |
| author_sort | Burkhard Scharfenberger |
| collection | DOAJ |
| description | We propose a scheme for performing an entanglement-swapping operation within a quantum communications hub (a Bell like measurement) using an NV-centre’s $| \pm 1\rangle \leftrightarrow | {A}_{2}\rangle $ optical transition. This is based on the heralded absorption of a photon resonant with that transition. The quantum efficiency of a single photon absorption is low but can be improved by placing the NV centre inside a micro cavity to boost the interaction time and further by recycling the leaked photon back into the cavity after flipping its phase and/or polarization. Throughout this process, the NV is repeatedly monitored via a QND measurement that heralds whether or not the photon absorption has succeeded. Upon success we know a destructive Bell measurement has occurred between that photon and NV centre. Given low losses and high per-pass absorption probability, this scheme should allow the total success probability to approach unity. With long electron spin coherence times possible at low temperatures, this component could be useful within a memory-based quantum repeater or relay. |
| first_indexed | 2024-03-12T16:43:17Z |
| format | Article |
| id | doaj.art-2f37c245eaad442aa00372a178423d3e |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:43:17Z |
| publishDate | 2015-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-2f37c245eaad442aa00372a178423d3e2023-08-08T14:21:34ZengIOP PublishingNew Journal of Physics1367-26302015-01-01171010301210.1088/1367-2630/17/10/103012Absorption-based quantum communication with NV centresBurkhard Scharfenberger0Hideo Kosaka1William J Munro2Kae Nemoto3National Institute of Informatics, 2-1-2 Hitotsubashi, Chiyoda-ku, Tokyo 101-8430, JapanDepartment of Physics, Faculty of Engineering, Yokohama National University , Sogo-Kenkyuto S306, Tokiwadai, Hodogayaku, 240-8501 Yokohama, JapanNational Institute of Informatics, 2-1-2 Hitotsubashi, Chiyoda-ku, Tokyo 101-8430, Japan; NTT Basic Research Laboratories, NTT Corporation, 3-1 Morinosato Wakamiya, Atsugi, Kanagawa 243-0198, JapanNational Institute of Informatics, 2-1-2 Hitotsubashi, Chiyoda-ku, Tokyo 101-8430, JapanWe propose a scheme for performing an entanglement-swapping operation within a quantum communications hub (a Bell like measurement) using an NV-centre’s $| \pm 1\rangle \leftrightarrow | {A}_{2}\rangle $ optical transition. This is based on the heralded absorption of a photon resonant with that transition. The quantum efficiency of a single photon absorption is low but can be improved by placing the NV centre inside a micro cavity to boost the interaction time and further by recycling the leaked photon back into the cavity after flipping its phase and/or polarization. Throughout this process, the NV is repeatedly monitored via a QND measurement that heralds whether or not the photon absorption has succeeded. Upon success we know a destructive Bell measurement has occurred between that photon and NV centre. Given low losses and high per-pass absorption probability, this scheme should allow the total success probability to approach unity. With long electron spin coherence times possible at low temperatures, this component could be useful within a memory-based quantum repeater or relay.https://doi.org/10.1088/1367-2630/17/10/103012quantum communicationNV centerabsorption based |
| spellingShingle | Burkhard Scharfenberger Hideo Kosaka William J Munro Kae Nemoto Absorption-based quantum communication with NV centres New Journal of Physics quantum communication NV center absorption based |
| title | Absorption-based quantum communication with NV centres |
| title_full | Absorption-based quantum communication with NV centres |
| title_fullStr | Absorption-based quantum communication with NV centres |
| title_full_unstemmed | Absorption-based quantum communication with NV centres |
| title_short | Absorption-based quantum communication with NV centres |
| title_sort | absorption based quantum communication with nv centres |
| topic | quantum communication NV center absorption based |
| url | https://doi.org/10.1088/1367-2630/17/10/103012 |
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