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- Publisher Website: 10.1126/science.aaa8525
- Scopus: eid_2-s2.0-84944458734
- WOS: WOS:000362838700037
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Article: A near–quantum-limited Josephson traveling-wave parametric amplifier
Title | A near–quantum-limited Josephson traveling-wave parametric amplifier |
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Authors | |
Issue Date | 2015 |
Citation | Science, 2015, v. 350, n. 6258, p. 307-310 How to Cite? |
Abstract | Detecting singleâ€"photon level signalsâ€"carriers of both classical and quantum informationâ€"is particularly challenging for low-energy microwave frequency excitations. Here we introduce a superconducting amplifier based on a Josephson junction transmission line. Unlike current standing-wave parametric amplifiers, this traveling wave architecture robustly achieves high gain over a bandwidth of several gigahertz with sufficient dynamic range to read out 20 superconducting qubits. To achieve this performance, we introduce a subwavelength resonant phase-matching technique that enables the creation of nonlinear microwave devices with unique dispersion relations. We benchmark the amplifier with weak measurements, obtaining a high quantum efficiency of 75% (70% including noise added by amplifiers following the Josephson amplifier). With a flexible design based on compact lumped elements, this Josephson amplifier has broad applicability to microwave metrology and quantum optics. |
Persistent Identifier | http://hdl.handle.net/10722/256741 |
ISSN | 2023 Impact Factor: 44.7 2023 SCImago Journal Rankings: 11.902 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Macklin, C. | - |
dc.contributor.author | O'Brien, K. | - |
dc.contributor.author | Hover, D. | - |
dc.contributor.author | Schwartz, M. E. | - |
dc.contributor.author | Bolkhovsky, V. | - |
dc.contributor.author | Zhang, X. | - |
dc.contributor.author | Oliver, W. D. | - |
dc.contributor.author | Siddiqi, I. | - |
dc.date.accessioned | 2018-07-24T08:57:46Z | - |
dc.date.available | 2018-07-24T08:57:46Z | - |
dc.date.issued | 2015 | - |
dc.identifier.citation | Science, 2015, v. 350, n. 6258, p. 307-310 | - |
dc.identifier.issn | 0036-8075 | - |
dc.identifier.uri | http://hdl.handle.net/10722/256741 | - |
dc.description.abstract | Detecting singleâ€"photon level signalsâ€"carriers of both classical and quantum informationâ€"is particularly challenging for low-energy microwave frequency excitations. Here we introduce a superconducting amplifier based on a Josephson junction transmission line. Unlike current standing-wave parametric amplifiers, this traveling wave architecture robustly achieves high gain over a bandwidth of several gigahertz with sufficient dynamic range to read out 20 superconducting qubits. To achieve this performance, we introduce a subwavelength resonant phase-matching technique that enables the creation of nonlinear microwave devices with unique dispersion relations. We benchmark the amplifier with weak measurements, obtaining a high quantum efficiency of 75% (70% including noise added by amplifiers following the Josephson amplifier). With a flexible design based on compact lumped elements, this Josephson amplifier has broad applicability to microwave metrology and quantum optics. | - |
dc.language | eng | - |
dc.relation.ispartof | Science | - |
dc.title | A near–quantum-limited Josephson traveling-wave parametric amplifier | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1126/science.aaa8525 | - |
dc.identifier.scopus | eid_2-s2.0-84944458734 | - |
dc.identifier.volume | 350 | - |
dc.identifier.issue | 6258 | - |
dc.identifier.spage | 307 | - |
dc.identifier.epage | 310 | - |
dc.identifier.eissn | 1095-9203 | - |
dc.identifier.isi | WOS:000362838700037 | - |
dc.identifier.issnl | 0036-8075 | - |