Readout of a quantum processor with high dynamic range Josephson parametric amplifiers
White, T
Opremcak, A
Sterling, G
Korotkov, A
Sank, D
Acharya, R
Ansmann, M
Arute, F
Arya, K
Bardin, JC
Bengtsson, A
Bourassa, A
Bovaird, J
Brill, L
Buckley, BB
Buell, DA
Burger, T
Burkett, B
Bushnell, N
Chen, Z
Chiaro, B
Cogan, J
Collins, R
Crook, AL
Curtin, B
Demura, S
Dunsworth, A
Erickson, C
Fatemi, R
Burgos, LF
Forati, E
Foxen, B
Giang, W
Giustina, M
Grajales Dau, A
Hamilton, MC
Harrington, SD
Hilton, J
Hoffmann, M
Hong, S
Huang, T
Huff, A
Iveland, J
Jeffrey, E
Kieferová, M
Kim, S
Klimov, PV
Kostritsa, F
Kreikebaum, JM
Landhuis, D
Laptev, P
Laws, L
Lee, K
Lester, BJ
Lill, A
Liu, W
Locharla, A
Lucero, E
McCourt, T
McEwen, M
Mi, X
Miao, KC
Montazeri, S
Morvan, A
Neeley, M
Neill, C
Nersisyan, A
Ng, JH
Nguyen, A
Nguyen, M
Potter, R
Quintana, C
Roushan, P
Sankaragomathi, K
Satzinger, KJ
Schuster, C
Shearn, MJ
Shorter, A
Shvarts, V
Skruzny, J
Smith, WC
Szalay, M
Torres, A
Woo, BWK
Yao, ZJ
Yeh, P
Yoo, J
Young, G
Zhu, N
Zobrist, N
Chen, Y
Megrant, A
Kelly, J
Naaman, O
- Publisher:
- AIP Publishing
- Publication Type:
- Journal Article
- Citation:
- Applied Physics Letters, 2023, 122, (1)
- Issue Date:
- 2023-01-02
Closed Access
Filename | Description | Size | |||
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2209.07757.pdf | Published version | 3.38 MB | Adobe PDF |
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Full metadata record
Field | Value | Language |
---|---|---|
dc.contributor.author | White, T | |
dc.contributor.author | Opremcak, A | |
dc.contributor.author | Sterling, G | |
dc.contributor.author | Korotkov, A | |
dc.contributor.author | Sank, D | |
dc.contributor.author | Acharya, R | |
dc.contributor.author | Ansmann, M | |
dc.contributor.author | Arute, F | |
dc.contributor.author | Arya, K | |
dc.contributor.author | Bardin, JC | |
dc.contributor.author | Bengtsson, A | |
dc.contributor.author | Bourassa, A | |
dc.contributor.author | Bovaird, J | |
dc.contributor.author | Brill, L | |
dc.contributor.author | Buckley, BB | |
dc.contributor.author | Buell, DA | |
dc.contributor.author | Burger, T | |
dc.contributor.author | Burkett, B | |
dc.contributor.author | Bushnell, N | |
dc.contributor.author | Chen, Z | |
dc.contributor.author | Chiaro, B | |
dc.contributor.author | Cogan, J | |
dc.contributor.author | Collins, R | |
dc.contributor.author | Crook, AL | |
dc.contributor.author | Curtin, B | |
dc.contributor.author | Demura, S | |
dc.contributor.author | Dunsworth, A | |
dc.contributor.author | Erickson, C | |
dc.contributor.author | Fatemi, R | |
dc.contributor.author | Burgos, LF | |
dc.contributor.author | Forati, E | |
dc.contributor.author | Foxen, B | |
dc.contributor.author | Giang, W | |
dc.contributor.author | Giustina, M | |
dc.contributor.author | Grajales Dau, A | |
dc.contributor.author | Hamilton, MC | |
dc.contributor.author | Harrington, SD | |
dc.contributor.author | Hilton, J | |
dc.contributor.author | Hoffmann, M | |
dc.contributor.author | Hong, S | |
dc.contributor.author | Huang, T | |
dc.contributor.author | Huff, A | |
dc.contributor.author | Iveland, J | |
dc.contributor.author | Jeffrey, E | |
dc.contributor.author | Kieferová, M | |
dc.contributor.author | Kim, S | |
dc.contributor.author | Klimov, PV | |
dc.contributor.author | Kostritsa, F | |
dc.contributor.author | Kreikebaum, JM | |
dc.contributor.author | Landhuis, D | |
dc.contributor.author | Laptev, P | |
dc.contributor.author | Laws, L | |
dc.contributor.author | Lee, K | |
dc.contributor.author | Lester, BJ | |
dc.contributor.author | Lill, A | |
dc.contributor.author | Liu, W | |
dc.contributor.author | Locharla, A | |
dc.contributor.author | Lucero, E | |
dc.contributor.author | McCourt, T | |
dc.contributor.author | McEwen, M | |
dc.contributor.author | Mi, X | |
dc.contributor.author | Miao, KC | |
dc.contributor.author | Montazeri, S | |
dc.contributor.author | Morvan, A | |
dc.contributor.author | Neeley, M | |
dc.contributor.author | Neill, C | |
dc.contributor.author | Nersisyan, A | |
dc.contributor.author | Ng, JH | |
dc.contributor.author | Nguyen, A | |
dc.contributor.author | Nguyen, M | |
dc.contributor.author | Potter, R | |
dc.contributor.author | Quintana, C | |
dc.contributor.author | Roushan, P | |
dc.contributor.author | Sankaragomathi, K | |
dc.contributor.author | Satzinger, KJ | |
dc.contributor.author | Schuster, C | |
dc.contributor.author | Shearn, MJ | |
dc.contributor.author | Shorter, A | |
dc.contributor.author | Shvarts, V | |
dc.contributor.author | Skruzny, J | |
dc.contributor.author | Smith, WC | |
dc.contributor.author | Szalay, M | |
dc.contributor.author | Torres, A | |
dc.contributor.author | Woo, BWK | |
dc.contributor.author | Yao, ZJ | |
dc.contributor.author | Yeh, P | |
dc.contributor.author | Yoo, J | |
dc.contributor.author | Young, G | |
dc.contributor.author | Zhu, N | |
dc.contributor.author | Zobrist, N | |
dc.contributor.author | Chen, Y | |
dc.contributor.author | Megrant, A | |
dc.contributor.author | Kelly, J | |
dc.contributor.author | Naaman, O | |
dc.date.accessioned | 2024-03-06T02:20:46Z | |
dc.date.available | 2024-03-06T02:20:46Z | |
dc.date.issued | 2023-01-02 | |
dc.identifier.citation | Applied Physics Letters, 2023, 122, (1) | |
dc.identifier.issn | 0003-6951 | |
dc.identifier.issn | 1077-3118 | |
dc.identifier.uri | http://hdl.handle.net/10453/176183 | |
dc.description.abstract | We demonstrate a high dynamic range Josephson parametric amplifier (JPA) in which the active nonlinear element is implemented using an array of rf-SQUIDs. The device is matched to the 50 ω environment with a Klopfenstein-taper impedance transformer and achieves a bandwidth of 250-300 MHz with input saturation powers up to -95 dBm at 20 dB gain. A 54-qubit Sycamore processor was used to benchmark these devices, providing a calibration for readout power, an estimation of amplifier added noise, and a platform for comparison against standard impedance matched parametric amplifiers with a single dc-SQUID. We find that the high power rf-SQUID array design has no adverse effect on system noise, readout fidelity, or qubit dephasing, and we estimate an upper bound on amplifier added noise at 1.6 times the quantum limit. Finally, amplifiers with this design show no degradation in readout fidelity due to gain compression, which can occur in multi-tone multiplexed readout with traditional JPAs. | |
dc.language | English | |
dc.publisher | AIP Publishing | |
dc.relation.ispartof | Applied Physics Letters | |
dc.relation.isbasedon | 10.1063/5.0127375 | |
dc.rights | info:eu-repo/semantics/closedAccess | |
dc.subject | 02 Physical Sciences, 09 Engineering, 10 Technology | |
dc.subject.classification | Applied Physics | |
dc.subject.classification | 40 Engineering | |
dc.subject.classification | 51 Physical sciences | |
dc.title | Readout of a quantum processor with high dynamic range Josephson parametric amplifiers | |
dc.type | Journal Article | |
utslib.citation.volume | 122 | |
utslib.for | 02 Physical Sciences | |
utslib.for | 09 Engineering | |
utslib.for | 10 Technology | |
pubs.organisational-group | University of Technology Sydney | |
pubs.organisational-group | University of Technology Sydney/Faculty of Engineering and Information Technology | |
pubs.organisational-group | University of Technology Sydney/Strength - QSI - Centre for Quantum Software and Information | |
pubs.organisational-group | University of Technology Sydney/Faculty of Engineering and Information Technology/School of Computer Science | |
utslib.copyright.status | closed_access | * |
dc.date.updated | 2024-03-06T02:20:44Z | |
pubs.issue | 1 | |
pubs.publication-status | Published | |
pubs.volume | 122 | |
utslib.citation.issue | 1 |
Abstract:
We demonstrate a high dynamic range Josephson parametric amplifier (JPA) in which the active nonlinear element is implemented using an array of rf-SQUIDs. The device is matched to the 50 ω environment with a Klopfenstein-taper impedance transformer and achieves a bandwidth of 250-300 MHz with input saturation powers up to -95 dBm at 20 dB gain. A 54-qubit Sycamore processor was used to benchmark these devices, providing a calibration for readout power, an estimation of amplifier added noise, and a platform for comparison against standard impedance matched parametric amplifiers with a single dc-SQUID. We find that the high power rf-SQUID array design has no adverse effect on system noise, readout fidelity, or qubit dephasing, and we estimate an upper bound on amplifier added noise at 1.6 times the quantum limit. Finally, amplifiers with this design show no degradation in readout fidelity due to gain compression, which can occur in multi-tone multiplexed readout with traditional JPAs.
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