Individual control and readout of qubits in a sub-diffraction volume
Medium-scale ensembles of coupled qubits offer a platform for near-term quantum technologies as well as studies of many-body physics. A central challenge for coherent control of such systems is the ability to measure individual quantum states without disturbing nearby qubits. Here, we demonstrate th...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
Springer Science and Business Media LLC
2021
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| Online Access: | https://hdl.handle.net/1721.1/129641 |
| _version_ | 1811078424551227392 |
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| author | Bersin, Eric Alexander Walsh, Michael E Mouradian, Sara L Trusheim, Matthew E Schroder, Tim Englund, Dirk R. |
| author2 | Massachusetts Institute of Technology. Research Laboratory of Electronics |
| author_facet | Massachusetts Institute of Technology. Research Laboratory of Electronics Bersin, Eric Alexander Walsh, Michael E Mouradian, Sara L Trusheim, Matthew E Schroder, Tim Englund, Dirk R. |
| author_sort | Bersin, Eric Alexander |
| collection | MIT |
| description | Medium-scale ensembles of coupled qubits offer a platform for near-term quantum technologies as well as studies of many-body physics. A central challenge for coherent control of such systems is the ability to measure individual quantum states without disturbing nearby qubits. Here, we demonstrate the measurement of individual qubit states in a sub-diffraction cluster by selectively exciting spectrally distinguishable nitrogen vacancy centers. We perform super-resolution localization of single centers with nanometer spatial resolution, as well as individual control and readout of spin populations. These measurements indicate a readout-induced crosstalk on non-addressed qubits below 4 × 10−2. This approach opens the door to high-speed control and measurement of qubit registers in mesoscopic spin clusters, with applications ranging from entanglement-enhanced sensors to error-corrected qubit registers to multiplexed quantum repeater nodes. |
| first_indexed | 2024-09-23T10:59:27Z |
| format | Article |
| id | mit-1721.1/129641 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T10:59:27Z |
| publishDate | 2021 |
| publisher | Springer Science and Business Media LLC |
| record_format | dspace |
| spelling | mit-1721.1/1296412022-10-01T00:26:06Z Individual control and readout of qubits in a sub-diffraction volume Bersin, Eric Alexander Walsh, Michael E Mouradian, Sara L Trusheim, Matthew E Schroder, Tim Englund, Dirk R. Massachusetts Institute of Technology. Research Laboratory of Electronics Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Medium-scale ensembles of coupled qubits offer a platform for near-term quantum technologies as well as studies of many-body physics. A central challenge for coherent control of such systems is the ability to measure individual quantum states without disturbing nearby qubits. Here, we demonstrate the measurement of individual qubit states in a sub-diffraction cluster by selectively exciting spectrally distinguishable nitrogen vacancy centers. We perform super-resolution localization of single centers with nanometer spatial resolution, as well as individual control and readout of spin populations. These measurements indicate a readout-induced crosstalk on non-addressed qubits below 4 × 10−2. This approach opens the door to high-speed control and measurement of qubit registers in mesoscopic spin clusters, with applications ranging from entanglement-enhanced sensors to error-corrected qubit registers to multiplexed quantum repeater nodes. National Science Foundation (U.S.) (Grant DMR-1231319) European Commission. Framework Programme for Research and Innovation. Marie Sklodowska-Curie Actions (Agreement 753067 OPHOCS) Germany. Federal Ministry of Education and Research ((BMBF, DiNOQuant, Project 13N14921) United States. Air Force. Office of Scientific Research. Multidisciplinary University Research Initiative (Optimal Measurements for Scalable Quantum Technologies FA9550-14-1-0052) United States. Air Force. Office of Scientific Research (Grant FA9550-16-1-0391) 2021-02-03T12:56:18Z 2021-02-03T12:56:18Z 2019-05 2018-10 2020-12-14T17:11:30Z Article http://purl.org/eprint/type/JournalArticle 2056-6387 https://hdl.handle.net/1721.1/129641 Bersin, Eric et al. “Individual control and readout of qubits in a sub-diffraction volume.” npj Quantum Information, 5, 1 (May 2019): 38 © 2019 The Author(s) en 10.1038/S41534-019-0154-Y npj Quantum Information Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ application/pdf Springer Science and Business Media LLC Nature |
| spellingShingle | Bersin, Eric Alexander Walsh, Michael E Mouradian, Sara L Trusheim, Matthew E Schroder, Tim Englund, Dirk R. Individual control and readout of qubits in a sub-diffraction volume |
| title | Individual control and readout of qubits in a sub-diffraction volume |
| title_full | Individual control and readout of qubits in a sub-diffraction volume |
| title_fullStr | Individual control and readout of qubits in a sub-diffraction volume |
| title_full_unstemmed | Individual control and readout of qubits in a sub-diffraction volume |
| title_short | Individual control and readout of qubits in a sub-diffraction volume |
| title_sort | individual control and readout of qubits in a sub diffraction volume |
| url | https://hdl.handle.net/1721.1/129641 |
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