Floquet-Mode Traveling-Wave Parametric Amplifiers
Simultaneous ideal quantum measurements of multiple single-photon-level signals would advance applications in quantum information processing, metrology, and astronomy but require the first amplifier to be simultaneously broadband, quantum limited, and directional. However, conventional traveling-wav...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2022-04-01
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| Series: | PRX Quantum |
| Online Access: | http://doi.org/10.1103/PRXQuantum.3.020306 |
| _version_ | 1811284842377117696 |
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| author | Kaidong Peng Mahdi Naghiloo Jennifer Wang Gregory D. Cunningham Yufeng Ye Kevin P. O’Brien |
| author_facet | Kaidong Peng Mahdi Naghiloo Jennifer Wang Gregory D. Cunningham Yufeng Ye Kevin P. O’Brien |
| author_sort | Kaidong Peng |
| collection | DOAJ |
| description | Simultaneous ideal quantum measurements of multiple single-photon-level signals would advance applications in quantum information processing, metrology, and astronomy but require the first amplifier to be simultaneously broadband, quantum limited, and directional. However, conventional traveling-wave parametric amplifiers support broadband amplification at the cost of increased added noise and are not genuinely directional due to non-negligible nonlinear backward-wave generation. In this work, we introduce a new class of amplifiers that encode the information in the Floquet modes of the system. Such Floquet-mode amplifiers prevent information leakage and overcome the trade-off between quantum efficiency (QE) and bandwidth. Crucially, Floquet-mode amplifiers strongly suppress the nonlinear forward-backward wave coupling and are therefore genuinely directional and readily integrable with qubits, clearing another major obstacle toward broadband ideal quantum measurements. Furthermore, Floquet-mode amplifiers are insensitive to out-of-band impedance mismatch, which otherwise may lead to gain ripples, parametric oscillations, and instability in conventional traveling-wave parametric amplifiers. Finally, we show that a Floquet-mode Josephson traveling-wave parametric amplifier implementation can simultaneously achieve >20dB gain and a QE of η/η_{ideal}>99.9% of the quantum limit over more than an octave of bandwidth. The proposed Floquet scheme is also widely applicable to other platforms, such as kinetic inductance traveling-wave amplifiers and optical parametric amplifiers. |
| first_indexed | 2024-04-13T02:35:40Z |
| format | Article |
| id | doaj.art-3c36b9c55e94411baf14e1b8002d7766 |
| institution | Directory Open Access Journal |
| issn | 2691-3399 |
| language | English |
| last_indexed | 2024-04-13T02:35:40Z |
| publishDate | 2022-04-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | PRX Quantum |
| spelling | doaj.art-3c36b9c55e94411baf14e1b8002d77662022-12-22T03:06:23ZengAmerican Physical SocietyPRX Quantum2691-33992022-04-013202030610.1103/PRXQuantum.3.020306Floquet-Mode Traveling-Wave Parametric AmplifiersKaidong PengMahdi NaghilooJennifer WangGregory D. CunninghamYufeng YeKevin P. O’BrienSimultaneous ideal quantum measurements of multiple single-photon-level signals would advance applications in quantum information processing, metrology, and astronomy but require the first amplifier to be simultaneously broadband, quantum limited, and directional. However, conventional traveling-wave parametric amplifiers support broadband amplification at the cost of increased added noise and are not genuinely directional due to non-negligible nonlinear backward-wave generation. In this work, we introduce a new class of amplifiers that encode the information in the Floquet modes of the system. Such Floquet-mode amplifiers prevent information leakage and overcome the trade-off between quantum efficiency (QE) and bandwidth. Crucially, Floquet-mode amplifiers strongly suppress the nonlinear forward-backward wave coupling and are therefore genuinely directional and readily integrable with qubits, clearing another major obstacle toward broadband ideal quantum measurements. Furthermore, Floquet-mode amplifiers are insensitive to out-of-band impedance mismatch, which otherwise may lead to gain ripples, parametric oscillations, and instability in conventional traveling-wave parametric amplifiers. Finally, we show that a Floquet-mode Josephson traveling-wave parametric amplifier implementation can simultaneously achieve >20dB gain and a QE of η/η_{ideal}>99.9% of the quantum limit over more than an octave of bandwidth. The proposed Floquet scheme is also widely applicable to other platforms, such as kinetic inductance traveling-wave amplifiers and optical parametric amplifiers.http://doi.org/10.1103/PRXQuantum.3.020306 |
| spellingShingle | Kaidong Peng Mahdi Naghiloo Jennifer Wang Gregory D. Cunningham Yufeng Ye Kevin P. O’Brien Floquet-Mode Traveling-Wave Parametric Amplifiers PRX Quantum |
| title | Floquet-Mode Traveling-Wave Parametric Amplifiers |
| title_full | Floquet-Mode Traveling-Wave Parametric Amplifiers |
| title_fullStr | Floquet-Mode Traveling-Wave Parametric Amplifiers |
| title_full_unstemmed | Floquet-Mode Traveling-Wave Parametric Amplifiers |
| title_short | Floquet-Mode Traveling-Wave Parametric Amplifiers |
| title_sort | floquet mode traveling wave parametric amplifiers |
| url | http://doi.org/10.1103/PRXQuantum.3.020306 |
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