Efficient Measurement of Quantum Dynamics via Compressive Sensing
The resources required to characterize the dynamics of engineered quantum systems—such as quantum computers and quantum sensors—grow exponentially with system size. Here we adapt techniques from compressive sensing to exponentially reduce the experimental configurations required for quantum process...
| Main Authors: | , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
American Physical Society
2011
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| Online Access: | http://hdl.handle.net/1721.1/66117 |
| _version_ | 1826216582470172672 |
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| author | Shabani, A. Kosut, R. L. Mohseni, Masoud Rabitz, H. Broome, Matthew A. Almeida, M. P. White, A. G. |
| author2 | Massachusetts Institute of Technology. Research Laboratory of Electronics |
| author_facet | Massachusetts Institute of Technology. Research Laboratory of Electronics Shabani, A. Kosut, R. L. Mohseni, Masoud Rabitz, H. Broome, Matthew A. Almeida, M. P. White, A. G. |
| author_sort | Shabani, A. |
| collection | MIT |
| description | The resources required to characterize the dynamics of engineered quantum systems—such as quantum computers and quantum sensors—grow exponentially with system size. Here we adapt techniques from compressive sensing to exponentially reduce the experimental configurations required for quantum process tomography. Our method is applicable to processes that are nearly sparse in a certain basis and can be implemented using only single-body preparations and measurements. We perform efficient, high-fidelity estimation of process matrices of a photonic two-qubit logic gate. The database is obtained under various decoherence strengths. Our technique is both accurate and noise robust, thus removing a key roadblock to the development and scaling of quantum technologies. |
| first_indexed | 2024-09-23T16:49:53Z |
| format | Article |
| id | mit-1721.1/66117 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T16:49:53Z |
| publishDate | 2011 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/661172022-09-29T21:48:39Z Efficient Measurement of Quantum Dynamics via Compressive Sensing Shabani, A. Kosut, R. L. Mohseni, Masoud Rabitz, H. Broome, Matthew A. Almeida, M. P. White, A. G. Massachusetts Institute of Technology. Research Laboratory of Electronics Mohseni, Masoud Mohseni, Masoud The resources required to characterize the dynamics of engineered quantum systems—such as quantum computers and quantum sensors—grow exponentially with system size. Here we adapt techniques from compressive sensing to exponentially reduce the experimental configurations required for quantum process tomography. Our method is applicable to processes that are nearly sparse in a certain basis and can be implemented using only single-body preparations and measurements. We perform efficient, high-fidelity estimation of process matrices of a photonic two-qubit logic gate. The database is obtained under various decoherence strengths. Our technique is both accurate and noise robust, thus removing a key roadblock to the development and scaling of quantum technologies. Australian Research Council. Discovery Program Australian Research Council. Federation Fellowship United States. Army Research Office/Intelligence Advanced Research Projects Activity United States. Defense Advanced Research Projects Agency (grant FA9550-09-1-0710 administred through AFOSR) 2011-09-29T14:33:49Z 2011-09-29T14:33:49Z 2011-03 2010-11 Article http://purl.org/eprint/type/JournalArticle 0031-9007 http://hdl.handle.net/1721.1/66117 Shabani, A. et al. “Efficient Measurement of Quantum Dynamics via Compressive Sensing.” Physical Review Letters 106.10 (2011) © 2011 American Physical Society en_US http://dx.doi.org/10.1103/PhysRevLett.106.100401 Physical Review Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Shabani, A. Kosut, R. L. Mohseni, Masoud Rabitz, H. Broome, Matthew A. Almeida, M. P. White, A. G. Efficient Measurement of Quantum Dynamics via Compressive Sensing |
| title | Efficient Measurement of Quantum Dynamics via Compressive Sensing |
| title_full | Efficient Measurement of Quantum Dynamics via Compressive Sensing |
| title_fullStr | Efficient Measurement of Quantum Dynamics via Compressive Sensing |
| title_full_unstemmed | Efficient Measurement of Quantum Dynamics via Compressive Sensing |
| title_short | Efficient Measurement of Quantum Dynamics via Compressive Sensing |
| title_sort | efficient measurement of quantum dynamics via compressive sensing |
| url | http://hdl.handle.net/1721.1/66117 |
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