Heisenberg-Limited Qubit Read-Out with Two-Mode Squeezed Light
We show how to use two-mode squeezed light to exponentially enhance cavity-based dispersive qubit measurement. Our scheme enables true Heisenberg-limited scaling of the measurement, and crucially, it is not restricted to small dispersive couplings or unrealistically long measurement times. It involv...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
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American Physical Society
2015
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| Online Access: | http://hdl.handle.net/1721.1/98281 https://orcid.org/0000-0001-5430-9837 |
| _version_ | 1826195833537691648 |
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| author | Didier, Nicolas Kamal, Archana Oliver, William D. Blais, Alexandre Clerk, Aashish A. |
| author2 | Lincoln Laboratory |
| author_facet | Lincoln Laboratory Didier, Nicolas Kamal, Archana Oliver, William D. Blais, Alexandre Clerk, Aashish A. |
| author_sort | Didier, Nicolas |
| collection | MIT |
| description | We show how to use two-mode squeezed light to exponentially enhance cavity-based dispersive qubit measurement. Our scheme enables true Heisenberg-limited scaling of the measurement, and crucially, it is not restricted to small dispersive couplings or unrealistically long measurement times. It involves coupling a qubit dispersively to two cavities and making use of a symmetry in the dynamics of joint cavity quadratures (a so-called quantum-mechanics-free subsystem). We discuss the basic scaling of the scheme and its robustness against imperfections, as well as a realistic implementation in circuit quantum electrodynamics. |
| first_indexed | 2024-09-23T10:16:11Z |
| format | Article |
| id | mit-1721.1/98281 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T10:16:11Z |
| publishDate | 2015 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/982812022-09-26T16:52:39Z Heisenberg-Limited Qubit Read-Out with Two-Mode Squeezed Light Didier, Nicolas Kamal, Archana Oliver, William D. Blais, Alexandre Clerk, Aashish A. Lincoln Laboratory Massachusetts Institute of Technology. Research Laboratory of Electronics Kamal, Archana Oliver, William D. We show how to use two-mode squeezed light to exponentially enhance cavity-based dispersive qubit measurement. Our scheme enables true Heisenberg-limited scaling of the measurement, and crucially, it is not restricted to small dispersive couplings or unrealistically long measurement times. It involves coupling a qubit dispersively to two cavities and making use of a symmetry in the dynamics of joint cavity quadratures (a so-called quantum-mechanics-free subsystem). We discuss the basic scaling of the scheme and its robustness against imperfections, as well as a realistic implementation in circuit quantum electrodynamics. United States. Army Research Office (Grant W911NF-14-1-0078) Institut Transdisciplinaire d'Information Quantique (INTRIQ) Natural Sciences and Engineering Research Council of Canada Canadian Institute for Advanced Research 2015-09-01T13:59:29Z 2015-09-01T13:59:29Z 2015-08 2015-02 2015-08-27T22:00:23Z Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/98281 Didier, Nicolas, Archana Kamal, William D. Oliver, Alexandre Blais, and Aashish A. Clerk. "Heisenberg-Limited Qubit Read-Out with Two-Mode Squeezed Light." Phys. Rev. Lett. 115, 093604 (August 2015). © 2015 American Physical Society https://orcid.org/0000-0001-5430-9837 en http://dx.doi.org/10.1103/PhysRevLett.115.093604 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. American Physical Society application/pdf American Physical Society American Physical Society |
| spellingShingle | Didier, Nicolas Kamal, Archana Oliver, William D. Blais, Alexandre Clerk, Aashish A. Heisenberg-Limited Qubit Read-Out with Two-Mode Squeezed Light |
| title | Heisenberg-Limited Qubit Read-Out with Two-Mode Squeezed Light |
| title_full | Heisenberg-Limited Qubit Read-Out with Two-Mode Squeezed Light |
| title_fullStr | Heisenberg-Limited Qubit Read-Out with Two-Mode Squeezed Light |
| title_full_unstemmed | Heisenberg-Limited Qubit Read-Out with Two-Mode Squeezed Light |
| title_short | Heisenberg-Limited Qubit Read-Out with Two-Mode Squeezed Light |
| title_sort | heisenberg limited qubit read out with two mode squeezed light |
| url | http://hdl.handle.net/1721.1/98281 https://orcid.org/0000-0001-5430-9837 |
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